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Emerg Infect Dis. 2009 Apr;15(4):640-6. doi: 10.3201/eid1504.081428.

Human febrile illness caused by encephalomyocarditis virus infection, Peru.

Author information

1
Centers for Disease Control and Prevention, Atlanta, Georgia, USA. soberste@cdc.gov

Abstract

Etiologic studies of acute febrile disease were conducted in sites across South America, including Cusco and Iquitos, Peru. Patients' clinical signs and symptoms were recorded, and acute- and convalescent-phase serum samples were obtained for serologic examination and virus isolation in Vero E6 and C6/36 cells. Virus isolated in Vero E6 cells was identified as encephalomyocarditis virus (EMCV) by electron microscopy and by subsequent molecular diagnostic testing of samples from 2 febrile patients with nausea, headache, and dyspnea. The virus was recovered from acute-phase serum samples from both case-patients and identified with cardiovirus-specific reverse transcription-PCR and sequencing. Serum samples from case-patient 1 showed cardiovirus antibody by immunoglobulin M ELISA (acute phase <8, convalescent phase >1,024) and by neutralization assay (acute phase <10, convalescent phase >1,280). Serum samples from case-patient 2 did not contain antibodies detectable by either assay. Detection of virus in serum strongly supports a role for EMCV in human infection and febrile illness.

PMID:
19331761
PMCID:
PMC2671410
DOI:
10.3201/eid1504.081428
[Indexed for MEDLINE]
Free PMC Article

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