Eastern equine encephalitis in Trinidad. Epidemiological investigations following two human cases of South American strain in Santa Cruz
Tikasingh, E.S.; Ardoin, P.; Everard, C.O.; Davies, J.B.
Tropical and Geographical Medicine 25(4): 355-361
1973
ISSN/ISBN: 0041-3232 PMID: 4786649 Document Number: 57766
Following the occurrence of two human cases of eastern equine encephalitis caused by the South American strain of the virus in the Santa Cruz Valley in north-western Trinidad in March 1970, 91 groups of sentinel mice were exposed in April-May 1970 and five hamsters in March-April 1971, but no virus was isolated. Examination in 12 pools of 457 mosquitos of 7 species collected over the period April 1970-December 1971 also failed to yield any virus as did testing of sera of 25 trapped mammals and organs and brains of 113 trapped birds.