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Emerging Bacterial Zoonotic and Vector-Borne Diseases: Title and subTitle BreakEcological and Epidemiological Factors FREE

David H. Walker, MD; Alan G. Barbour, MD; James H. Oliver, PhD; Robert S. Lane, PhD; J. Stephen Dumler, MD; David T. Dennis, MD; David H. Persing, MD, PhD; Abdu F. Azad, PhD; Edward McSweegan, PhD
[+] Author Affiliations

This article is one of a series addressing emerging and reemerging global microbial threats.

This article evolved from discussions at the Scientific Workshop on Emerging Bacterial Zoonotic and Vector-Borne Diseases, May 8-9, 1995, Galveston, Tex.

Reprint requests to the Department of Pathology, University of Texas Medical Branch at Galveston, 301 University Blvd, Galveston, TX 77555-0609 (Dr Walker).


JAMA. 1996;275(6):463-469. doi:10.1001/jama.1996.03530300047039
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Published online

Among the etiologic agents of emerging infectious diseases are several bacterial organisms that naturally reside in animal and arthropod hosts. The most compelling emerging bacterial zoonotic and vector-borne diseases in the United States are Lyme disease; a Southern erythema migrans—like illness; human monocytic ehrlichiosis; human granulocytic ehrlichiosis; a novel cat flea—associated typhus group rickettsiosis; bartonelloses of immunocompetent and immunocompromised persons, particularly with AIDS; and sylvatic plague. Some of these antimicrobial-treatable infections are life threatening. During the acute stage of illness when antimicrobial agents are most effective, the flulike clinical signs and symptoms and available laboratory tests frequently do not point to a particular diagnosis. Epidemiological factors determined by the ecology of the bacteria are often the most useful diagnostic clues. The recognition of these evolving problems emphasizes the need for development of better laboratory diagnostic methods, for surveillance for and tracking of disease, and for continued research into factors contributing to transmission of the organisms. The continual appearance of previously unidentified bacterial infections requires prospective national strategies for timely recognition of the syndrome, identification of the agent, establishment of criteria and methods for diagnosis, optimization of the treatment regimen, and determination of successful approaches to prevention and control.

(JAMA. 1996;275:463-469)

REFERENCES

Barbour AG, Fish D.  The biological and social phenomenon of Lyme disease. Science . 1993;;260: 1610-1616.
Barbour AG. Lyme Disease: The Cause, The Cure, The Controversy . Baltimore, Md: The Johns Hopkins University Press. In press.
Anderson JF, Magnarelli LA.  Epizootiology of Lyme disease—causing borreliae. Clin Dermatol . 1993;; 11:339-351.
Oliver JH, Chandler FW, James AM, et al.  Natural occurrence and characterization of the Lyme disease spirochete, Borrelia burgdorferi, in cotton rats (Sigmodon hispidus) from Georgia and Florida. J Parasitol . 1995;;81:30-36.
Lane RS, Brown RN, Piesman J, Peavey CA.  Vector competence of Ixodes pacificus and Dermacentor occidentalis (Acari: Ixodidae) for various isolates of Lyme disease spirochetes. J Med Entomol . 1994;;31:417-424.
Schoeler GB, Lane RS.  Efficiency of transovarial transmission of the Lyme disease spirochete, Borrelia burgdorferi, in the western blacklegged tick, Ixodes pacificus (Acari: Ixodidae). J Med Entomol . 1993;;30:80-86.
Maupin GO, Gage KL, Piesman J, et al.  Discovery of an enzootic cycle of Borrelia burgdorferi in Neotoma mexicana and Ixodes spinipalpis from northern Colorado, an area where Lyme disease is non-endemic. J Infect Dis . 1994;;170:636-643.
Sanders FH, Oliver JH.  Evaluation of Ixodes scapularis, Amblyomma americanum, and Dermacentor variabilis (Acari: Ixodidae) from Georgia as vectors of a Florida strain of the Lyme disease spirochete, Borrelia burgdorferi. J Med Entomol . 1995;; 32:402-406.
Brown RN, Lane RS.  Lyme disease in California. Science . 1992;;256:1439-1442.
Oliver JH, Chandler FW, Luttrell MP, et al.  Isolation and transmission of the Lyme disease spirochetes from southeastern United States. Proc Natl Acad Sci U S A . 1993;;90:7371-7375.
Oliver JH.  Arthropod research in the southeastern US. J Agromedicine . 1995;;2:79-84.
Oliver JH.  Importance of systematics to public health: ticks, microbes, and disease. Ann Mo Botanical Garden . 1996;;83:37-46.
Hutcheson HJ, Oliver JH, Houck MA, Strauss RE.  Multivariate morphometric discrimination of postlarval stages of the black-legged tick, Ixodes scapularis (Acari: Ixodidae), principal vector of the agent of Lyme disease in eastern North America. J Med Entomol . 1995;;32:827-842.
Norris DE, Klompen JSH, Keirans JE, Black WC.  Population genetics of Ixodes scapularis based on mitochondrial 12S and 16S genes. J Med Entomol . In press.
Lane RS, Piesman J, Burgdorfer W.  Lyme borreliosis. Annu Rev Entomol . 1991;;36:587-609.
Van Dam AP, Kuiper H, Vos K, et al.  Different genospecies of Borrelia burgdorferi are associated with distinct clinical manifestations of Lyme borreliosis. Clin Infect Dis . 1993;;17:708-717.
Masters EJ, Donnell HD.  Lyme and/or Lyme-like disease in Missouri. Mo Med . 1995;;92:346-353.
Campbell GL, Paul WS, Schriefer ME, Craven RB, Robbins KE, Dennis DT.  Epidemiologic and diagnostic studies of patients with suspected early Lyme disease, Missouri, 1990-1993. J Infect Dis . 1995;; 172:470-480.
Anderson BE, Dawson JE, Jones DC, Wilson KH.  Ehrlichia chaffeensis, a new species associated with human ehrlichiosis. J Clin Microbiol . 1991;;29: 2838-2842.
Dawson JE, Anderson BE, Fishbein DB, et al.  Isolation and characterization of an Ehrlichia sp from a patient diagnosed with human ehrlichiosis. J Clin Microbiol . 1991;;29:2741-2745.
Chen S-M, Dumler JS, Bakken JS, Walker DH.  Identification of a granulocytotropic Ehrlichia species as the etiologic agent of human disease. J Clin Microbiol . 1994;;32:589-595.
Bakken JS, Dumler JS, Chen S-M, Eckman MR, Van Etta LL, Walker DH.  Human granulocytic ehrlichiosis in the upper Midwest United States: a new species emerging? JAMA . 1994;;272:212-218.
Morais JD, Dawson JE, Greene C, Filipe AR, Galhardas LC, Bacellar F.  First European case of ehrlichiosis. Lancet . 1991;;338:633-634.
Uhaa IJ, Maclean JD, Greene CR, Fishbein DB.  A case of human ehrlichiosis acquired in Mali. Am J Trop Med Hyg . 1992;;46:161-164.
Harkess JR, Ewing SA, Crutcher JM, Kudlac J, McKee G, Istre GR.  Human ehrlichiosis in Oklahoma. J Infect Dis . 1989;;159:576-579.
Fishbein DB, Kemp A, Dawson JE, Greene NR, Redus MA, Fields DH.  Human ehrlichiosis: prospective active surveillance in febrile hospitalized patients. J Infect Dis . 1989;;160:803-809.
Standaert SM, Dawson JE, Schaffner W, et al.  Ehrlichiosis in a golf-oriented retirement community. N Engl J Med . 1995;;333:420-425.
Fishbein DB, Dawson JE, Robinson LE.  Human ehrlichiosis in the United States, 1985 to 1990. Ann Intern Med . 1994;;120:736-743.
Anderson BE, Sims KG, Olson JG, et al.  Amblyomma americanum: a potential vector of human ehrlichiosis. Am J Trop Med Hyg . 1993;;49: 239-244.
Ewing SA, Dawson JE, Kocan AA, et al.  Experimental transmission of Ehrlichia chaffeensis (Rickettsiales: Ehrlichieae) among white-tailed deer by Amblyomma americanum (Acari: Ixodidae). J Med Entomol . 1995;;32:368-374.
Dawson JE, Stallknecht DE, Howerth EW, et al.  Susceptibility of white-tailed deer (Odocoileus virginianus) to infection with Ehrlichia chaffeensis, the etiologic agent of human ehrlichiosis. J Clin Microbiol . 1994;;32:2725-2728.
Dumler JS, Dawson JE, Walker DH.  Human ehrlichiosis: hematopathology and immunohistologic detection of Ehrilichia chaffeensis. Hum Pathol . 1993;; 24:391-396.
Yu X-J, Brouqui P, Dumler JS, Raoult D.  Detection of Ehrlichia chaffeensis in human tissue by using a species-specific monoclonal antibody. J Clin Microbiol . 1993;;31:3284-3288.
Everett ED, Evans KA, Henry RB, McDonald G.  Human ehrlichiosis in adults after tick exposure. Ann Intern Med . 1994;;120:730-735.
Telford SR III, Lepore TJ, Snow P, Warner CK, Dawson JE.  Human granulocytic ehrlichiosis in Massachusetts. Ann Intern Med . 1995;;123:277-279.
Centers for Disease Control and Prevention. Human granulocytic ehrlichiosis—New York , 1995;.
MMWR Morbid Mortal Wkly Rep . 1995;;44:593-595.
Hardalo CJ, Dumler JS, Quagliarello V.  Human granulocytic ehrlichiosis in Connecticut: report of a fatal case. Clin Infect Dis . 1995;;21:910-914.
Brouqui P, Dumler JS, Lienhard R, Brossard M, Raoult D.  Human granulocytic ehrlichiosis in Europe. Lancet . 1995;;346:782-783.
Madigan JE, Richter PJ Jr, Kimsey RB, Barlough JE, Bakken JS, Dumler JS.  Transmission and passage in horses of the agent of human granulocytic ehrlichiosis. J Infect Dis . 1995;;172:1141-1144.
Barlough JE, Madigan JE, DeRock E, Dumler JS, Bakken JS.  Protection against Ehrlichia equi is conferred by prior infection with the human granulocytotropic ehrlichia (HGE agent). J Clin Microbiol . 1995;;33:3333-3334.
Johansson K-E, Pettersson B, Uhlen M, Gunnarsson A, Malmqvist M, Olsson E.  Identification of the causative agent of granulocytic ehrlichiosis in Swedish dogs and horses by direct solid phase sequencing of PCR products from the 16S rRNA gene. Res Vet Sci . 1995;;58:109-112.
Greig B, Asanovich KM, Armstrong PJ, Dumler JS.  Geographic, clinical, serologic and molecular evidence of granulocytic ehrlichiosis, a likely zoonotic disease, in Minnesota and Wisconsin dogs. J Clin Microbiol . 1996;;34:44-48.
Reed KD, Mitchell PD, Persing DH, Kolbert CP, Cameron V.  Transmission of human granulocytic ehrlichiosis. JAMA . 1995;;273:23.
Pancholi P, Kolbert CP, Mitchell PD, et al.  Ixodes dammini as a potential vector of human granulocytic ehrlichiosis. J Infect Dis . 1995;;172:1007-1012.
Magnarelli LA, Stafford KC III, Mather TN, Yeh M-T, Horn KD, Dumler JS.  Hemocytic rickettsia-like organisms in ticks: serologic reactivity with antisera to ehrlichiae and detection of DNA of agent of human granulocytic ehrlichiosis by PCR. J Clin Microbiol . 1995;;33:2710-2714.
Richter PJ, Kimsey RB, Madigan JE, Barlough E, Dumler JS, Brooks DL.  Ixodes pacificus as a vector of Ehrlichia equi. J Med Entomol . In press.
Bakken JS, Krueth J, Wilson-Nordskog C, et al.  Clinical and laboratory characteristics of human granulocytic ehrlichiosis. JAMA . 1996;;275:199-205.
Paparone PW, Glenn WB.  Lyme disease with concurrent ehrlichiosis. J Am Osteopath Assoc . 1994;; 94:568-577.
Barton LL, Luisiri A, Dawson JE, Letson GW, Quan TJ.  Simultaneous infection with an Ehrlichia and Borrelia burgdorferi in a child. Ann N Y Acad Sci . 1990;;590:68-69.
Pancholi P, Bakken JS, Finkel MF, Persing DH.  Serologic evidence of human granulocytic ehrlichiosis in Lyme disease patients from the upper Midwest. Clin Infect Dis . 1995;;21:723. Abstract 21.
Schriefer ME, Sacci JB, Dumler JS, Bullen MG, Azad AF.  Identification of a novel rickettsial infection in a patient diagnosed with murine typhus. J Clin Microbiol . 1994;;32:949-954.
Azad AF, Sacci JB, Nelson WM, Dasch GA, Schmidtmann ET, Carl M.  Genetic characterization and transovarial transmission of a typhus-like rickettsia found in cat fleas. Proc Natl Acad Sci U S A . 1992;;89:43-46.
Williams SG, Sacci JB, Schriefer ME, et al.  Typhus and typhuslike rickettsiae associated with opossums and their fleas in Los Angeles County, California. J Clin Microbiol . 1992;;30:1758-1762.
Uchida T.  Rickettsia japonica, the etiologic agent of oriental spotted fever. Microbiol Immunol . 1993;; 37:91-102.
Mahara F, Suto T.  The clinical features of Japanese spotted fever.  In: Kazar J, Raoult D, eds. Rickettsiae and Rickettsial Diseases: Proceedings of the Fourth International Symposium . Bratislava, Czechoslovakia: Publishing House of the Slovak Academy of Sciences; 1991;:526-531.
Uchida T, Uchiyama T, Kumano K, Walker DH.  Rickettsia japonica sp nov, the etiological agent of spotted fever group rickettsiosis in Japan. Int J Syst Bacterial . 1992;;42:303-305.
Sirisanthana T, Pinyopornpanit V, Sirisanthana V, Strickman D, Kelly DJ, Dasch GA.  First cases of spotted fever group rickettsiosis in Thailand. Am J Trop Med Hyg . 1994;;50:682-686.
Takada N, Fujita H, Yano Y, Ruang W-H, Khamboonruang C.  Serosurveys of spotted fever and murine typhus in local residents of Taiwan and Thailand compared with Japan. Southeast Asian J Trop Med Public Health . 1993;;24:354-356.
Feng H-M, Chen T-S, Lin B-H, et al.  Serologic survey of spotted fever group rickettsiosis on Hainan Island of China. Microbiol Immunol . 1991;;35:687-694.
Robertson RG, Wisseman CL Jr.  Tick-borne rickettsiae of the spotted fever group in west Pakistan. Am J Epidemiol . 1972;;97:55-64.
Baird RW, Lloyd M, Stenos J, Ross BC, Stewart RS, Dwyer B.  Characterization and comparison of Australian human spotted fever group rickettsiae. J Clin Microbiol . 1992;;30:2896-2902.
Stewart RS.  Flinders Island spotted fever. Med J Aust . 1991;;154:94-104.
Tarasevich IV, Makarova VA, Fetisova NF, Stepanov AV, Miskarova ED, Raoult D.  Studies of a `new' rickettsiosis `Astrakhan' spotted fever. Eur J Epidemiol . 1991;;7:294-298.
Kelly PJ, Beati L, Matthewman LA, Mason PR, Dasch GA, Raoult D.  A new pathogenic spotted fever group rickettsia from Africa. J Trap Med Hyg . 1994;; 97:129-137.
Walker DH, Feng H-M, Saada JI, et al.  Comparative antigenic analysis of spotted fever group rickettsiae from Israel and other closely related organisms. Am J Trop Med Hyg . 1995;;52:569-576.
Ruiz-Beltran R, Herrero-Herrero JI, Martin-Sanchez AM, Martin-Gonzalez JA.  Prevalence of antibodies to Rickettsia conorii, Coxiella burnetii and Rickettsia typhi in Salamanca Province (Spain). Eur J Epidemiol . 1990;;6:293-299.
Kelly PJ, Mason PR, Matthewman LA, Raoult D.  Seroepidemiology of spotted fever group rickettsial infections in humans in Zimbabwe. J Trop Med Hyg . 1991;;94:304-309.
Fan M-Y, Walker DH, Liu Q-H, et al.  Rickettsial and serologic evidence for prevalent spotted fever rickettsiosis in Inner Mongolia. Am J Trop Med Hyg . 1987;;36:615-620.
Fan M-Y, Wang J-G, Jiang Y-X, Zong D-G, Lenz B, Walker DH.  Isolation of a spotted fever group rickettsia from a patient and related ecologic investigations in Xinjiang Uygur Autonomous Region of China. J Clin Microbiol . 1987;;25:628-632
Liu Q-R, Walker DH, Zhou G-F.  Serologic survey for antibodies to Rickettsia sibirica in Inner Mongolia, China. Ann N Y Acad Sci . 1990;;590:237-242.
Yu X-J, Jin Y, Fan M, Xu G, Liu Q, Raoult D.  Genotypic and antigenic identification of two new strains of spotted fever group rickettsiae isolated from China. J Clin Microbiol . 1993;;31:83-88.
Kass EM, Szaniawski WK, Levy H, Leach J, Srinivasan K, Rives C.  Rickettsialpox in a New York City hospital, 1980 to 1989. N Engl J Med . 1994;;331: 1612-1617.
Radulovic S, Feng H-M, Marovic M, Djelalija B, Popov VL, Walker DH.  Isolation of Rickettsia akari from a patient in an endemic region of Mediterranean spotted fever. Clin Infect Dis . In press.
Perine PL, Chandler BP, Krause DK, et al.  A clinico-epidemiological study of epidemic typhus in Africa. Clin Infect Dis . 1992;;14:1149-1158.
Dolan MJ, Wong MT, Regnery RL, et al.  Syndrome of Rochalimaea henselae adenitis suggesting cat scratch disease. Ann Intern Med . 1993;; 118:331-336.
Regnery RL, Olson JG, Perkins BA, Bibb W.  Serological response to 'Rochalimaea henselae' antigen in suspected cat-scratch disease. Lancet . 1992;; 339:1443-1445.
Zangwill KM, Hamilton DH, Perkins BA, et al.  Cat scratch disease in Connecticut. N Engl J Med . 1993;;329:8-13.
Adal KA, Cockerell CJ, Petri WA.  Cat scratch disease, bacillary angiomatosis, and other infections due to Rochalimaea. N Engl J Med . 1994;;330:1509-1515.
Tappero JW, Mohle-Boetani J, Koehler JE, et al.  The epidemiology of bacillary angiomatosis and bacillary peliosis. JAMA . 1993;;269:770-775.
Koehler JE, Glaser CA, Tappero JW.  Rochalinuiea henselae infection. JAMA . 1994;;271:531-535.
Kordick DL, Breitschwerdt EB.  Intraerythrocytic presence of Bartonella henselae. J Clin Microbiol . 1995;;33:1655-1656.
Margileth AM.  Antibiotic therapy for cat-scratch disease. Pediatr Infect Dis J . 1992;;11:474-478.
Drancourt M, Mainardi JL, Brouqui P, et al.  Bartonella (Rochalimaea) quintana endocarditis in three homeless men. N Engl J Med . 1995;;332:419-423.
Spach DH, Kanter AS, Dougherty MJ, et al.  Bartonella (Rochalimaea) quintana bacteremia in inner-city patients with chronic alcoholism. N Engl J Med . 1995;;332:424-428.
Daly JS, Worthington MG, Brenner DJ, et al.  Rochalimaea elizabethae sp nov isolated from a patient with endocarditis. J Clin Microbiol . 1993;; 31:872-881.
Breitschwerdt EB, Kordick DL, Malarkey DE, Keene B, Hadfield TL, Wilson K.  Endocarditis in a dog due to infection with a novel Bartonella subspecies. J Clin Microbiol . 1995;;33:154-160.
 Human plague in 1993. Wkly Epidemiol Rec . 1995;;70:45-48.
Centers for Diseases Control and Prevention.  Human plague—United States, 1993-1994. MMWR Morbid Mortal Wkly Rep . 1994;;43:242-246.
Doll JM, Zeitz PS, Ettestad P, Bucholtz AL, Davis T, Gage K.  Cat-transmitted fatal pneumonic plague in a person who traveled from Colorado to Arizona. Am J Trop Med Hyg . 1994;;51:109-114.
Eidson M, Tierney LA, Rollag OJ, Becker T, Brown T, Hull HF.  Feline plague in New Mexico. Am J Public Health . 1988;;78:1333-1335.
Centers for Disease Control and Prevention.  Human plague—India, 1994. MMWR Morbid Mortal Wkly Rep . 1994;;43:689-691.
Centers for Disease Control and Prevention.  Detection of notifiable disease through surveillance for imported plague—New York, September-October, 1994. MMWR Morbid Mortal Wkly Rep . 1994;;43: 805-807.

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Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Barbour AG, Fish D.  The biological and social phenomenon of Lyme disease. Science . 1993;;260: 1610-1616.
Barbour AG. Lyme Disease: The Cause, The Cure, The Controversy . Baltimore, Md: The Johns Hopkins University Press. In press.
Anderson JF, Magnarelli LA.  Epizootiology of Lyme disease—causing borreliae. Clin Dermatol . 1993;; 11:339-351.
Oliver JH, Chandler FW, James AM, et al.  Natural occurrence and characterization of the Lyme disease spirochete, Borrelia burgdorferi, in cotton rats (Sigmodon hispidus) from Georgia and Florida. J Parasitol . 1995;;81:30-36.
Lane RS, Brown RN, Piesman J, Peavey CA.  Vector competence of Ixodes pacificus and Dermacentor occidentalis (Acari: Ixodidae) for various isolates of Lyme disease spirochetes. J Med Entomol . 1994;;31:417-424.
Schoeler GB, Lane RS.  Efficiency of transovarial transmission of the Lyme disease spirochete, Borrelia burgdorferi, in the western blacklegged tick, Ixodes pacificus (Acari: Ixodidae). J Med Entomol . 1993;;30:80-86.
Maupin GO, Gage KL, Piesman J, et al.  Discovery of an enzootic cycle of Borrelia burgdorferi in Neotoma mexicana and Ixodes spinipalpis from northern Colorado, an area where Lyme disease is non-endemic. J Infect Dis . 1994;;170:636-643.
Sanders FH, Oliver JH.  Evaluation of Ixodes scapularis, Amblyomma americanum, and Dermacentor variabilis (Acari: Ixodidae) from Georgia as vectors of a Florida strain of the Lyme disease spirochete, Borrelia burgdorferi. J Med Entomol . 1995;; 32:402-406.
Brown RN, Lane RS.  Lyme disease in California. Science . 1992;;256:1439-1442.
Oliver JH, Chandler FW, Luttrell MP, et al.  Isolation and transmission of the Lyme disease spirochetes from southeastern United States. Proc Natl Acad Sci U S A . 1993;;90:7371-7375.
Oliver JH.  Arthropod research in the southeastern US. J Agromedicine . 1995;;2:79-84.
Oliver JH.  Importance of systematics to public health: ticks, microbes, and disease. Ann Mo Botanical Garden . 1996;;83:37-46.
Hutcheson HJ, Oliver JH, Houck MA, Strauss RE.  Multivariate morphometric discrimination of postlarval stages of the black-legged tick, Ixodes scapularis (Acari: Ixodidae), principal vector of the agent of Lyme disease in eastern North America. J Med Entomol . 1995;;32:827-842.
Norris DE, Klompen JSH, Keirans JE, Black WC.  Population genetics of Ixodes scapularis based on mitochondrial 12S and 16S genes. J Med Entomol . In press.
Lane RS, Piesman J, Burgdorfer W.  Lyme borreliosis. Annu Rev Entomol . 1991;;36:587-609.
Van Dam AP, Kuiper H, Vos K, et al.  Different genospecies of Borrelia burgdorferi are associated with distinct clinical manifestations of Lyme borreliosis. Clin Infect Dis . 1993;;17:708-717.
Masters EJ, Donnell HD.  Lyme and/or Lyme-like disease in Missouri. Mo Med . 1995;;92:346-353.
Campbell GL, Paul WS, Schriefer ME, Craven RB, Robbins KE, Dennis DT.  Epidemiologic and diagnostic studies of patients with suspected early Lyme disease, Missouri, 1990-1993. J Infect Dis . 1995;; 172:470-480.
Anderson BE, Dawson JE, Jones DC, Wilson KH.  Ehrlichia chaffeensis, a new species associated with human ehrlichiosis. J Clin Microbiol . 1991;;29: 2838-2842.
Dawson JE, Anderson BE, Fishbein DB, et al.  Isolation and characterization of an Ehrlichia sp from a patient diagnosed with human ehrlichiosis. J Clin Microbiol . 1991;;29:2741-2745.
Chen S-M, Dumler JS, Bakken JS, Walker DH.  Identification of a granulocytotropic Ehrlichia species as the etiologic agent of human disease. J Clin Microbiol . 1994;;32:589-595.
Bakken JS, Dumler JS, Chen S-M, Eckman MR, Van Etta LL, Walker DH.  Human granulocytic ehrlichiosis in the upper Midwest United States: a new species emerging? JAMA . 1994;;272:212-218.
Morais JD, Dawson JE, Greene C, Filipe AR, Galhardas LC, Bacellar F.  First European case of ehrlichiosis. Lancet . 1991;;338:633-634.
Uhaa IJ, Maclean JD, Greene CR, Fishbein DB.  A case of human ehrlichiosis acquired in Mali. Am J Trop Med Hyg . 1992;;46:161-164.
Harkess JR, Ewing SA, Crutcher JM, Kudlac J, McKee G, Istre GR.  Human ehrlichiosis in Oklahoma. J Infect Dis . 1989;;159:576-579.
Fishbein DB, Kemp A, Dawson JE, Greene NR, Redus MA, Fields DH.  Human ehrlichiosis: prospective active surveillance in febrile hospitalized patients. J Infect Dis . 1989;;160:803-809.
Standaert SM, Dawson JE, Schaffner W, et al.  Ehrlichiosis in a golf-oriented retirement community. N Engl J Med . 1995;;333:420-425.
Fishbein DB, Dawson JE, Robinson LE.  Human ehrlichiosis in the United States, 1985 to 1990. Ann Intern Med . 1994;;120:736-743.
Anderson BE, Sims KG, Olson JG, et al.  Amblyomma americanum: a potential vector of human ehrlichiosis. Am J Trop Med Hyg . 1993;;49: 239-244.
Ewing SA, Dawson JE, Kocan AA, et al.  Experimental transmission of Ehrlichia chaffeensis (Rickettsiales: Ehrlichieae) among white-tailed deer by Amblyomma americanum (Acari: Ixodidae). J Med Entomol . 1995;;32:368-374.
Dawson JE, Stallknecht DE, Howerth EW, et al.  Susceptibility of white-tailed deer (Odocoileus virginianus) to infection with Ehrlichia chaffeensis, the etiologic agent of human ehrlichiosis. J Clin Microbiol . 1994;;32:2725-2728.
Dumler JS, Dawson JE, Walker DH.  Human ehrlichiosis: hematopathology and immunohistologic detection of Ehrilichia chaffeensis. Hum Pathol . 1993;; 24:391-396.
Yu X-J, Brouqui P, Dumler JS, Raoult D.  Detection of Ehrlichia chaffeensis in human tissue by using a species-specific monoclonal antibody. J Clin Microbiol . 1993;;31:3284-3288.
Everett ED, Evans KA, Henry RB, McDonald G.  Human ehrlichiosis in adults after tick exposure. Ann Intern Med . 1994;;120:730-735.
Telford SR III, Lepore TJ, Snow P, Warner CK, Dawson JE.  Human granulocytic ehrlichiosis in Massachusetts. Ann Intern Med . 1995;;123:277-279.
Centers for Disease Control and Prevention. Human granulocytic ehrlichiosis—New York , 1995;.
MMWR Morbid Mortal Wkly Rep . 1995;;44:593-595.
Hardalo CJ, Dumler JS, Quagliarello V.  Human granulocytic ehrlichiosis in Connecticut: report of a fatal case. Clin Infect Dis . 1995;;21:910-914.
Brouqui P, Dumler JS, Lienhard R, Brossard M, Raoult D.  Human granulocytic ehrlichiosis in Europe. Lancet . 1995;;346:782-783.
Madigan JE, Richter PJ Jr, Kimsey RB, Barlough JE, Bakken JS, Dumler JS.  Transmission and passage in horses of the agent of human granulocytic ehrlichiosis. J Infect Dis . 1995;;172:1141-1144.
Barlough JE, Madigan JE, DeRock E, Dumler JS, Bakken JS.  Protection against Ehrlichia equi is conferred by prior infection with the human granulocytotropic ehrlichia (HGE agent). J Clin Microbiol . 1995;;33:3333-3334.
Johansson K-E, Pettersson B, Uhlen M, Gunnarsson A, Malmqvist M, Olsson E.  Identification of the causative agent of granulocytic ehrlichiosis in Swedish dogs and horses by direct solid phase sequencing of PCR products from the 16S rRNA gene. Res Vet Sci . 1995;;58:109-112.
Greig B, Asanovich KM, Armstrong PJ, Dumler JS.  Geographic, clinical, serologic and molecular evidence of granulocytic ehrlichiosis, a likely zoonotic disease, in Minnesota and Wisconsin dogs. J Clin Microbiol . 1996;;34:44-48.
Reed KD, Mitchell PD, Persing DH, Kolbert CP, Cameron V.  Transmission of human granulocytic ehrlichiosis. JAMA . 1995;;273:23.
Pancholi P, Kolbert CP, Mitchell PD, et al.  Ixodes dammini as a potential vector of human granulocytic ehrlichiosis. J Infect Dis . 1995;;172:1007-1012.
Magnarelli LA, Stafford KC III, Mather TN, Yeh M-T, Horn KD, Dumler JS.  Hemocytic rickettsia-like organisms in ticks: serologic reactivity with antisera to ehrlichiae and detection of DNA of agent of human granulocytic ehrlichiosis by PCR. J Clin Microbiol . 1995;;33:2710-2714.
Richter PJ, Kimsey RB, Madigan JE, Barlough E, Dumler JS, Brooks DL.  Ixodes pacificus as a vector of Ehrlichia equi. J Med Entomol . In press.
Bakken JS, Krueth J, Wilson-Nordskog C, et al.  Clinical and laboratory characteristics of human granulocytic ehrlichiosis. JAMA . 1996;;275:199-205.
Paparone PW, Glenn WB.  Lyme disease with concurrent ehrlichiosis. J Am Osteopath Assoc . 1994;; 94:568-577.
Barton LL, Luisiri A, Dawson JE, Letson GW, Quan TJ.  Simultaneous infection with an Ehrlichia and Borrelia burgdorferi in a child. Ann N Y Acad Sci . 1990;;590:68-69.
Pancholi P, Bakken JS, Finkel MF, Persing DH.  Serologic evidence of human granulocytic ehrlichiosis in Lyme disease patients from the upper Midwest. Clin Infect Dis . 1995;;21:723. Abstract 21.
Schriefer ME, Sacci JB, Dumler JS, Bullen MG, Azad AF.  Identification of a novel rickettsial infection in a patient diagnosed with murine typhus. J Clin Microbiol . 1994;;32:949-954.
Azad AF, Sacci JB, Nelson WM, Dasch GA, Schmidtmann ET, Carl M.  Genetic characterization and transovarial transmission of a typhus-like rickettsia found in cat fleas. Proc Natl Acad Sci U S A . 1992;;89:43-46.
Williams SG, Sacci JB, Schriefer ME, et al.  Typhus and typhuslike rickettsiae associated with opossums and their fleas in Los Angeles County, California. J Clin Microbiol . 1992;;30:1758-1762.
Uchida T.  Rickettsia japonica, the etiologic agent of oriental spotted fever. Microbiol Immunol . 1993;; 37:91-102.
Mahara F, Suto T.  The clinical features of Japanese spotted fever.  In: Kazar J, Raoult D, eds. Rickettsiae and Rickettsial Diseases: Proceedings of the Fourth International Symposium . Bratislava, Czechoslovakia: Publishing House of the Slovak Academy of Sciences; 1991;:526-531.
Uchida T, Uchiyama T, Kumano K, Walker DH.  Rickettsia japonica sp nov, the etiological agent of spotted fever group rickettsiosis in Japan. Int J Syst Bacterial . 1992;;42:303-305.
Sirisanthana T, Pinyopornpanit V, Sirisanthana V, Strickman D, Kelly DJ, Dasch GA.  First cases of spotted fever group rickettsiosis in Thailand. Am J Trop Med Hyg . 1994;;50:682-686.
Takada N, Fujita H, Yano Y, Ruang W-H, Khamboonruang C.  Serosurveys of spotted fever and murine typhus in local residents of Taiwan and Thailand compared with Japan. Southeast Asian J Trop Med Public Health . 1993;;24:354-356.
Feng H-M, Chen T-S, Lin B-H, et al.  Serologic survey of spotted fever group rickettsiosis on Hainan Island of China. Microbiol Immunol . 1991;;35:687-694.
Robertson RG, Wisseman CL Jr.  Tick-borne rickettsiae of the spotted fever group in west Pakistan. Am J Epidemiol . 1972;;97:55-64.
Baird RW, Lloyd M, Stenos J, Ross BC, Stewart RS, Dwyer B.  Characterization and comparison of Australian human spotted fever group rickettsiae. J Clin Microbiol . 1992;;30:2896-2902.
Stewart RS.  Flinders Island spotted fever. Med J Aust . 1991;;154:94-104.
Tarasevich IV, Makarova VA, Fetisova NF, Stepanov AV, Miskarova ED, Raoult D.  Studies of a `new' rickettsiosis `Astrakhan' spotted fever. Eur J Epidemiol . 1991;;7:294-298.
Kelly PJ, Beati L, Matthewman LA, Mason PR, Dasch GA, Raoult D.  A new pathogenic spotted fever group rickettsia from Africa. J Trap Med Hyg . 1994;; 97:129-137.
Walker DH, Feng H-M, Saada JI, et al.  Comparative antigenic analysis of spotted fever group rickettsiae from Israel and other closely related organisms. Am J Trop Med Hyg . 1995;;52:569-576.
Ruiz-Beltran R, Herrero-Herrero JI, Martin-Sanchez AM, Martin-Gonzalez JA.  Prevalence of antibodies to Rickettsia conorii, Coxiella burnetii and Rickettsia typhi in Salamanca Province (Spain). Eur J Epidemiol . 1990;;6:293-299.
Kelly PJ, Mason PR, Matthewman LA, Raoult D.  Seroepidemiology of spotted fever group rickettsial infections in humans in Zimbabwe. J Trop Med Hyg . 1991;;94:304-309.
Fan M-Y, Walker DH, Liu Q-H, et al.  Rickettsial and serologic evidence for prevalent spotted fever rickettsiosis in Inner Mongolia. Am J Trop Med Hyg . 1987;;36:615-620.
Fan M-Y, Wang J-G, Jiang Y-X, Zong D-G, Lenz B, Walker DH.  Isolation of a spotted fever group rickettsia from a patient and related ecologic investigations in Xinjiang Uygur Autonomous Region of China. J Clin Microbiol . 1987;;25:628-632
Liu Q-R, Walker DH, Zhou G-F.  Serologic survey for antibodies to Rickettsia sibirica in Inner Mongolia, China. Ann N Y Acad Sci . 1990;;590:237-242.
Yu X-J, Jin Y, Fan M, Xu G, Liu Q, Raoult D.  Genotypic and antigenic identification of two new strains of spotted fever group rickettsiae isolated from China. J Clin Microbiol . 1993;;31:83-88.
Kass EM, Szaniawski WK, Levy H, Leach J, Srinivasan K, Rives C.  Rickettsialpox in a New York City hospital, 1980 to 1989. N Engl J Med . 1994;;331: 1612-1617.
Radulovic S, Feng H-M, Marovic M, Djelalija B, Popov VL, Walker DH.  Isolation of Rickettsia akari from a patient in an endemic region of Mediterranean spotted fever. Clin Infect Dis . In press.
Perine PL, Chandler BP, Krause DK, et al.  A clinico-epidemiological study of epidemic typhus in Africa. Clin Infect Dis . 1992;;14:1149-1158.
Dolan MJ, Wong MT, Regnery RL, et al.  Syndrome of Rochalimaea henselae adenitis suggesting cat scratch disease. Ann Intern Med . 1993;; 118:331-336.
Regnery RL, Olson JG, Perkins BA, Bibb W.  Serological response to 'Rochalimaea henselae' antigen in suspected cat-scratch disease. Lancet . 1992;; 339:1443-1445.
Zangwill KM, Hamilton DH, Perkins BA, et al.  Cat scratch disease in Connecticut. N Engl J Med . 1993;;329:8-13.
Adal KA, Cockerell CJ, Petri WA.  Cat scratch disease, bacillary angiomatosis, and other infections due to Rochalimaea. N Engl J Med . 1994;;330:1509-1515.
Tappero JW, Mohle-Boetani J, Koehler JE, et al.  The epidemiology of bacillary angiomatosis and bacillary peliosis. JAMA . 1993;;269:770-775.
Koehler JE, Glaser CA, Tappero JW.  Rochalinuiea henselae infection. JAMA . 1994;;271:531-535.
Kordick DL, Breitschwerdt EB.  Intraerythrocytic presence of Bartonella henselae. J Clin Microbiol . 1995;;33:1655-1656.
Margileth AM.  Antibiotic therapy for cat-scratch disease. Pediatr Infect Dis J . 1992;;11:474-478.
Drancourt M, Mainardi JL, Brouqui P, et al.  Bartonella (Rochalimaea) quintana endocarditis in three homeless men. N Engl J Med . 1995;;332:419-423.
Spach DH, Kanter AS, Dougherty MJ, et al.  Bartonella (Rochalimaea) quintana bacteremia in inner-city patients with chronic alcoholism. N Engl J Med . 1995;;332:424-428.
Daly JS, Worthington MG, Brenner DJ, et al.  Rochalimaea elizabethae sp nov isolated from a patient with endocarditis. J Clin Microbiol . 1993;; 31:872-881.
Breitschwerdt EB, Kordick DL, Malarkey DE, Keene B, Hadfield TL, Wilson K.  Endocarditis in a dog due to infection with a novel Bartonella subspecies. J Clin Microbiol . 1995;;33:154-160.
 Human plague in 1993. Wkly Epidemiol Rec . 1995;;70:45-48.
Centers for Diseases Control and Prevention.  Human plague—United States, 1993-1994. MMWR Morbid Mortal Wkly Rep . 1994;;43:242-246.
Doll JM, Zeitz PS, Ettestad P, Bucholtz AL, Davis T, Gage K.  Cat-transmitted fatal pneumonic plague in a person who traveled from Colorado to Arizona. Am J Trop Med Hyg . 1994;;51:109-114.
Eidson M, Tierney LA, Rollag OJ, Becker T, Brown T, Hull HF.  Feline plague in New Mexico. Am J Public Health . 1988;;78:1333-1335.
Centers for Disease Control and Prevention.  Human plague—India, 1994. MMWR Morbid Mortal Wkly Rep . 1994;;43:689-691.
Centers for Disease Control and Prevention.  Detection of notifiable disease through surveillance for imported plague—New York, September-October, 1994. MMWR Morbid Mortal Wkly Rep . 1994;;43: 805-807.
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To understand the clinical management of acute heart failure syndromes.
Accreditation Information The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians.
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For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.
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