The clinical histopathological and serological findings in three patients who developed yellow fever after entering the Guayaguayare forest in south-east Trinidad in January and February 1979 are described in this report. The patients were all previously healthy young males and the clinical features of t...
An epizootic of yellow fever occurred in Alouatta monkeys in November 1978. An intensive surveillance programme was initiated to locate sick and dying monkeys in the forests of Trinidad. Thirty Alouatta (red howler)monkeys were collected and examined for yellow fever virus. Sixteen of the monkeys were po...
A low altitude aerial transect censusing of howler monkeys was conducted on the Chaguaramas Peninsula. This method of censusing has proven to be more advantageous than the more frequently used ground transect census. During a three hour period, 138 monkeys were counted in a 972 hectare area....
An epidemic of sylvan yellow fever occurred in Trinidad during the period 1978 to 1980. Entomological activities were initiated at various localities where monkey (Alouatta spp.) mortalities were reported. A total of 5,468 Haemagogus janthinomys was collected and tested which resulted in the isolation of...
Ovitraps and bamboo pots were used to monitor the seasonal and vertical distribution of ovipositing female Haemagogus mosquitoes in the Moruga forest, south Trinidad. Over a one-year period 12,499 eggs were recovered in all months of the year, but the majority were collected in the rainy season. Peak col...
In November 1978, an outbreak of disease among wild simians of south Trinidad alerted officials to the presence of jungle yellow fever (YF). Learning of the epizootic and having recently been involved in studies establishing transovarial transmission (TOT) of YF virus, this laboratory urged Trinidad work...
An outline is given of the vector control measures adopted during the 1978-1980 yellow fever epidemic in Trinidad and the efficacy of the yellow fever plan of action is discussed....
Short account of immunization activities and campaign during the yellow fever outbreak in Trinidad 1979...
A study was undertaken to assess the effectiveness of a yellow fever vaccination campaign, which had been conducted in Trinidad, West Indies from November, 1978 through 1979. Evaluative tools consisted of: (i) an interview survey in a randomly selected sample of two hundred households, to determine immun...
Following an outbreak of yellow fever in Trinidad in 1978-1979, a study was undertaken to investigate the jungle reservoirs and vectors of yellow fever virus in the inter-epizootic period, to seek evidence of natural transovarial transmission of yellow fever virus in Haemagogus collected. These were made...
