Malaria in High Altitudes.

J. A. King, M.D.
JAMA. 1906;XLVII(3):217-218. doi:10.1001/jama.1906.02520030059016.
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Topia, Durango, Mexico, July 2, 1906.

To the Editor:  —I wish to go on record in The Journal as absolutely and unqualifiedly refuting the seemingly well established statement that malaria can not exist in high altitudes.Topia is situated on an elevated plateau at the head of a guebrada, which descends westward to the Gulf of California. The altitude is 5,900 feet above sea level. The topography of the locality does not permit of water standing or becoming stagnant, and it is pretty truthfully said that there have not existed a dozen mosquitoes in the place in that many years. Notwithstanding these facts the malarial plasmodium exists in abundance, as has been absolutely proven by microscopic examinations and corroborated by therapeutic tests made by Dr. S. McGibbon in dozens of cases and by therapeutic tests made by me in several cases of intermittent chills and fevers. Many of these tests


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