RT Journal T1 Notes from the field: Severe varicella in an immunocompromised child exposed to an unvaccinated sibling with varicella—minnesota, 2011 JF JAMA JO JAMA YR 2012 FD September 12 VO 308 IS 10 SP 968 OP 968 DO UL http://dx.doi.org/ AB On December 13, 2011, the Minnesota Department of Health was notified of varicella in a girl, aged 3 years, admitted to a hospital after a 2-day history of fever of 102.7°F (39.3°C) and an extensive maculopapulovesicular rash (>500 skin lesions) with vesicles in the mouth and throat. The child received weekly immunosuppressive therapy with methotrexate (12.5 mg) for juvenile rheumatoid arthritis diagnosed at age 18 months. Neither she nor her younger sibling, aged 21 months, had received a first dose of varicella vaccine (routinely recommended at age 12–15 months). Their parents refused vaccination because of personal beliefs. The parents reported varicella in the younger sibling 2 weeks before her older sister was admitted. The older sister had not received prophylactic varicella zoster immune globulin (VariZIG); however, her parents monitored her for varicella symptoms.