| | | | | Vertebrate (species and organ) and arthropod | No. isolations/No. tested | No. with antibody/No. tested Test used | Country and region |
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| | Man: Infections: Many lab infections; one possible lab death (12); infections in 14/32 people receiving formalinized vaccine (6); 2 naturally acquired fatal cases of presumptive VEE in Trinidad, 1943 (13); one naturally acquired fatal case, Panama, 1961 (14); epidemic, no deaths, Colombia, 1952 (15); in Guajira, Colombia, 1962, at least 3000 cases, 30 deaths (16); probably at least 30,000 cases, 300 deaths in Venezuela, 1962-1964 (17,18); 20,000 cases and 200 deaths in Ecuador, 1969 (19). Many cases in Guatemala, Honduras, El Salvador, Nicaragua, Costa Rica, 1969-1970; in Mexico 1970, 1971; in south Texas, 1971 (20). Naturally acquired antibody: Trinidad 9/155 NT (21); Colombia, 32/94 HI (12); S. Florida, USA, 37/65 HI (22); Panama, 19/145 CF (14). | | Horses: Epizootics in Trinidad, Venezuela, Colombia, Ecuador, Guyana, Cost Rica, Nicaragua, El Salvador, Honduras, Mexico, south Texas. | | Wild rodents: Antibodies in cotton mice and cotton rats in south Florida Everglades (23). | | Sentinels: Many isolations of epidemic and enzootic strains of the VEE virus complex have been isolated in sentinel mice, hamsters and monkeys, Trinidad and Brazil to Mexico. | | Mosquitoes: Numerous isolations of epidemic strains from at least 26 species, including Aedes aegypti, angustivittatus, sollicitans, scapularis, serratus, taeniorhynchus, thelcter; Anopheles aquasalis, crucians, neomaculipalpus, pseudopunctipennis, punctimacula; Culex ocossa, corniger, (Melanoconion) sp., nigripalpus, quinquefasciatus, tarsalis; Deinocerites pseudes; Mansonia dyari, titillans; Psorophora ciliata, cilipes, confinnis, cyanescens, discolor. Enzootic strains frequently isolated from Cx (Melanoconion) sp. | | Additional isolations: Cotton rat 1, opossum 1; Florida Everglades (29).Desmodus rotundus (vampire bat) 1; Mexico (30). | | |
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