Leptospirosis and malaria as causes of febrile illness during a dengue epidemic in Jamaica

Epidemics of febrile illnesses are often associated with rainy seasons in the tropics. During 2007-2008 an epidemic of dengue was identified in Jamaica based on serological testing of sera.A subset of 3165 of 5400 sera submitted for dengue analysis was tested for Leptospira IgM and malaria IgG using ELISA to determine their role in causing epidemic fever.Seropositivity for dengue, leptospirosis, and malaria were 38·4 and 6·0 and 6·5%,...