| pheasant susceptibility at different ages to eastern encephalitis virus from various sources in massachusetts. | thirteen isolates of eastern encephalitis (ee) virus recovered from various hosts in massachusetts differed significantly in pathogenicity for pheasants, 21 days old or older, inoculated subcutaneously with graded doses of virus. among the least pathogenic were two isolates from culiseta melanura mosquitoes, and among the most pathogenic isolates was one of pheasant origin. nine-day-old pheasant chicks were highly susceptible to ee virus. mortality did not appear to be totally dose-related, for ... | 1978 | 697655 |
| eastern equine encephalitis--new hampshire and massachusetts, august-september 2005. | during august-september 2005, the new hampshire department of health and human services reported seven cases of human eastern equine encephalitis virus (eeev) disease, the first laboratory-confirmed, locally acquired cases of human eeev disease reported from new hampshire in 41 years of national surveillance. also during august--september 2005, the massachusetts department of public health reported four cases of human eeev disease, five times the annual average of 0.8 cases reported from massach ... | 2006 | 16810146 |
| human eastern equine encephalitis in massachusetts: predictive indicators from mosquitoes collected at 10 long-term trap sites, 1979-2004. | human eastern equine encephalitis (eee) is a life-threatening mosquito-borne disease. to determine whether mosquito abundance and eee virus infection rates are associated with human eee disease, we evaluated retrospectively a total of 592,637 mosquitoes and onset dates for 20 confirmed human cases over 26 years in massachusetts. annual culiseta melanura populations at 10 defined sites decreased over the study period (p = 0.002). weekly infection rates and number of infected culiseta melanura cap ... | 2007 | 17297037 |
| vector competence of mosquitoes (diptera:culicidae) from massachusetts for a sympatric isolate of eastern equine encephalomyelitis virus. | we tested susceptibility to per os infection and potential salivary transmission for eastern equine encephalomyelitis (eee) virus in aedes canadensis (theobald), aedes vexans (meigen), anopheles quadrimaculatus (say), anopheles punctipennis (say), coquillettidia perturbans (walker), and culex salinarius (coquillett). culiseta melanura (coquillett), the documented enzootic vector of eee virus, was our control. based on these estimates of laboratory vector competence and other behavioral and ecolo ... | 1997 | 9151501 |
| duration of alphavirus neutralizing antibody in naturally infected birds. | native birds, mostly passerine species, ecologically associated with culiseta melanura, the enzootic vector of eastern equine encephalomyelitis and highlands j viruses in the eastern united states, were examined over a 12-year period in southeastern massachusetts. these studies concentrated on those individual birds known, by banding returns, to be residents of large wooded swamps where both eastern equine encephalomyelitis and highlands j viruses were known to be enzootic. of 8,417 birds sample ... | 1988 | 2829638 |