Sampling with light traps and human bait in epidemic foci for eastern equine encephalomyelitis virus in southeastern Massachusetts.
نویسندگان
چکیده
To estimate human exposure to potential vectors of eastern equine encephalomyelitis (EEE) virus, we compared collections of putative EEE virus vectors from human biting collections with collections from CDC, AB (American Biophysics), and New Jersey light traps and resting boxes in enzootic/epidemic foci of EEE virus in southeastern Massachusetts. Human biting collections caught significantly more host-seeking females than resting boxes or unbaited light traps (P < 0.05). Regression analysis of human biting collections to AB traps supplemented with CO2 could predict 60-70% of the actual human biting risk by Aedes and Coquillettidia perturbans. The AB traps supplemented with CO2 and octenol could predict 65% of Anopheles biting risk. No single sampling method was accurate for predicting human biting risk by Culex salinarius, and no method could predict human biting risk by all potential vectors surveyed.
منابع مشابه
Toward the incrimination of epidemic vectors of eastern equine encephalomyelitis virus in Massachusetts: abundance of mosquito populations at epidemic foci.
Putative epidemic/epizootic eastern equine encephalomyelitis virus (EEE) vector populations were compared at 15 recent (1982-90) human and horse case sites in Bristol and Plymouth counties in southeastern Massachusetts. Carbon dioxide-baited American Biophysics Corporation light traps were used for trapping adult mosquitoes to estimate biting risk in these foci of known transmission. Population...
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In the summer of 1938 human cases of acute encephalitis appeared in New England in sufficient numbers to warrant designating the outbreak as an epidemic.' In Massachusetts this epidemic involved more than 30 persons, mostly children, with a mortality rate of almost 75%. In the same area and at the same time, 90%o of some 250 local horses which had encephalitis died. The causative virus of easte...
متن کاملVector-host interactions and epizootiology of eastern equine encephalitis virus in Massachusetts.
Eastern equine encephalitis (EEE) virus is a highly pathogenic mosquito-borne zoonosis that is responsible for outbreaks of severe disease in humans and equines, resulting in high mortality or severe neurological impairment in most survivors. In the northeastern United States, EEE virus is maintained in an enzootic cycle involving the ornithophilic mosquito, Culiseta melanura (Coquillett) and p...
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ورودعنوان ژورنال:
- Journal of the American Mosquito Control Association
دوره 13 4 شماره
صفحات -
تاریخ انتشار 1997