Persons using assistive technology might not be able to fully access information in this file. For assistance, please send e-mail to: [email protected]. Type 508 Accommodation and the title of the report in the subject line of e-mail.
West Nile Virus Activity --- United States, August 7--13, 2003
This report summarizes West Nile virus (WNV) surveillance data reported to CDC through ArboNET as of 3
a.m., Mountain Daylight Time, August 13, 2003.
During the reporting week of August 7--13, a total of 240 human cases of WNV infection were reported from 18
states (Alabama, Arkansas, Colorado, Georgia, Iowa,
Kentucky, Louisiana, Minnesota, Mississippi, Missouri, New Mexico,
North Dakota, Oklahoma, Pennsylvania, South Dakota, Texas, Wisconsin, and Wyoming), including five
fatal cases from two states (Alabama and Colorado). During the same period, WNV infections were reported in 492 dead birds, 212 horses, one squirrel, and 430 mosquito pools.
During 2003, a total of 393 human cases of WNV infection have been reported from Colorado (n = 195), South Dakota
(n = 51), Texas (n = 39), Louisiana (n = 21), Mississippi (n = 14), Pennsylvania (n = 12), Alabama (n = 10), Minnesota (n= seven), Ohio (n = seven), Nebraska (n = six), North Dakota (n= six), Florida (n = four), Iowa (n = four),
Kentucky (n = three), New Mexico (n = three), Wyoming
(n = three), Oklahoma (n = two), Arkansas (n =
one), Georgia (n = one), Kansas (n = one), Missouri (n = one), South Carolina (n = one), and Wisconsin (n = one) (Figure). Among 383 (97%) cases for which demographic data were available, 213 (54%) occurred among men; the median age was 46 years (range: 17 months--89
years). Of the 393 cases, nine fatal cases were reported
from Colorado (n = five), Alabama (n = two), and Texas (n = two).
In addition, 2,262 dead birds with WNV infection were reported from 38 states and New York City; 403 WNV infections
in horses have been reported from 27 states (Alabama, Arkansas, Colorado, Delaware, Florida, Georgia, Iowa, Kansas, Kentucky, Maryland, Minnesota, Mississippi, Missouri, Montana, Nebraska, New Mexico, North Carolina, North Dakota, Oklahoma, Pennsylvania, South Carolina, South Dakota, Tennessee, Texas, Virginia, Wisconsin, and Wyoming), three WNV
infections were reported in dogs, one infection was reported in a squirrel, and five infections were reported in unidentified animal species. During 2003, WNV seroconversions have been reported in 261 sentinel chicken flocks from 10 states
(Colorado, Delaware, Florida, Georgia, Iowa, Louisiana, Nebraska, North Carolina, Pennsylvania, and Virginia). Louisiana and South Dakota each reported three seropositive sentinel horses. A total of 1,468 WNV-positive mosquito pools have been reported from 28 states (Arkansas, Arizona, Colorado, Connecticut, Georgia, Illinois, Indiana, Kansas, Kentucky,
Louisiana, Massachusetts, Maryland, Michigan, Minnesota, Missouri, Mississippi, Montana, Nebraska, New Jersey, North Dakota, Ohio, Oklahoma, Pennsylvania, South Dakota, Tennessee, Texas, Virginia, and Wisconsin) and New York City.
Use of trade names and commercial sources is for identification only and does not imply endorsement by the U.S. Department of
Health and Human Services.References to non-CDC sites on the Internet are
provided as a service to MMWR readers and do not constitute or imply
endorsement of these organizations or their programs by CDC or the U.S.
Department of Health and Human Services. CDC is not responsible for the content
of pages found at these sites. URL addresses listed in MMWR were current as of
the date of publication.
Disclaimer
All MMWR HTML versions of articles are electronic conversions from ASCII text
into HTML. This conversion may have resulted in character translation or format errors in the HTML version.
Users should not rely on this HTML document, but are referred to the electronic PDF version and/or
the original MMWR paper copy for the official text, figures, and tables.
An original paper copy of this issue can be obtained from the Superintendent of Documents,
U.S. Government Printing Office (GPO), Washington, DC 20402-9371; telephone: (202) 512-1800.
Contact GPO for current prices.
**Questions or messages regarding errors in formatting should be addressed to
[email protected].
