Avian

A total of 1634 dead birds were tested in the 2002 surveillance season. A total of 604 birds tested positive for West Nile Virus between May 8 and October 31, 2002.

Equine:

Thirty (30) horses have tested positive for West Nile virus in Maryland in 2002:

6 horses in Anne Arundel county,
1 horse in Charles county,
1 horse in Dorchester county,
7 horses in Frederick county,
3 horses in Howard county,
2 horses in Montgomery county,
3 horses in Prince George's county,
5 horses in Washington county,
1 horse in Wicomico county
1 horse in Unknown county.

View Table of Positive Equine Results

Mosquitoes:

A total of 7,206 mosquito pools were tested in Maryland from January 1 - December 31, 2002. Forty-six (46) mosquito pools in seven jurisdictions tested positive for West Nile virus in Maryland during that period.

2 pools in Anne Arundel county,
7 pools in Baltimore City,
4 pools in Baltimore County,
1 pool in Frederick County,
17 pools in Howard County,
3 pools in Montgomery county
12 pools in Prince George's county.

44 pools consisted of Culex species mosquitoes and 2 pools consisted of Aedes albopictus mosquitoes.

Note: Pool = group of mosquitoes

Humans:

Approximately 800 Maryland residents have been tested for WNV antibody since May 1st. Thirty-six (36) human WNV cases have been identified in 2002 from nine jurisdictions.

There were seven (7) WN-related fatalities in 2002.

Additional information will be available in the forthcoming 2002 Maryland Arboviral Surveillance Annual Report.

Surveillance Summaries and Final Reports

2001 Maryland Arbovirus Surveillance Final Report

2000 Maryland Arbovirus Surveillance Final Report

2001 WNV Surveillance Summary

2000 WNV Surveillance Summary

Mosquito-Borne Encephalitis || West Nile Virus