The 2012 West Nile encephalitis epidemic in Dallas, Texas.By Chung et al.
JAMA, 310(3): 297-307., 2013
Chung WM, Buseman CM, Joyner SN, Hughes SM, Fomby TB, Luby JP, Haley RW. (2013) The 2012 West Nile encephalitis epidemic in Dallas, Texas. JAMA, 310(3): 297-307.
After progressive declines over recent years, in 2012 West Nile virus epidemics resurged nationwide, with the greatest number of cases centered in Dallas County, Texas.
The investigation identified 173 cases of WNND, 225 of West Nile fever, 17 West Nile virus-positive blood donors, and 19 deaths in 2012. The incidence rate for WNND was 7.30 per 100,000 residents in 2012, compared with 2.91 per 100,000 in 2006, the largest previous Dallas County outbreak. An unusually rapid and early escalation of large numbers of human cases closely followed increasing infection trends in mosquitoes. The Cx quinquefasciatus
species-specific vector index predicted the onset of symptoms among WNND cases 1 to 2 weeks later...
The Mosquitoes of British ColumbiaBy Peter Belton
British Columbia Provincial Museum, Victoria BC, 1983
Handbook covering 46 mosquito species in 5 genera recorded in British Columbia at the time of publication. Includes illustrated keys to adults and larvae, text descriptions, and information on biology, habitat, distribution, control, and miscellaneous remarks.
Available online as 188pp PDF document
but all pages are photocopies, so text cannot be searched. Author Peter Belton
is a retired professor at Simon Fraser University, Burnaby, BC.
Evaluation of seasonal feeding patterns of West Nile virus vectors in Bernalillo Co., NM: implications for disease transmission.By Lujan et al.
J Med Entomol. 51(1): 264-268., 2014
Lujan DA, Greenberg JA, Hung AS, Dimenna MA, Hofkin BV. 2014. Evaluation of seasonal feeding patterns of West Nile virus vectors in Bernalillo county, New Mexico, United States: implications for disease transmission. J Med Entomol. 51(1): 264-268.
Many mosquito species take bloodmeals predominantly from either birds or mammals. Other mosquito species are less host-specific and feed readily on both. Furthermore, some species tend to alter their feeding patterns over the course of the year; early in the mosquito season such species may feed primarily on a particular host type, and subsequently take an increasingly larger proportion of their bloodmeals from an alternative host type as the season progresses.