West Nile Virus (WNV) Update: January 1, 2013 - December 31, 2013

February 13th, 2014 -- Orange County and the New York State Department of Health reported a WNV-positive result for one human. The New York City Department of Health and Mental Hygiene reported a WNV-positive result for one human (Queens).

Total number of WNV-positive specimens for the year:
32 human, 13 equine, 589 mosquito pools.
County Human1 Equine Mosquito Other
Albany 1(0) 0 0 0
Allegany 0 1 0 0
Broome 0 0 0 0
Cattaraugus* 0 2 0 0
Cayuga 1(0) 0 0 0
Chautauqua* 0 0 1 0
Chemung 0 0 0 0
Chenango 0 0 0 0
Clinton 0 0 0 0
Columbia 0 0 0 0
Cortland 0 0 0 0
Delaware 0 0 0 0
Dutchess 0 0 0 0
Erie* 0 0 17 0
Essex 0 1 0 0
Franklin 0 0 0 0
Fulton 0 1 0 0
Genesee 0 2 0 0
Greene 0 0 0 0
Hamilton 0 0 0 0
Herkimer 0 0 0 0
Jefferson 0 0 0 0
Lewis 0 0 0 0
Livingston 0 0 0 0
Madison* 0 0 3 0
Monroe 2(0) 1 0 0
Montgomery 0 0 0 0
Nassau* 8(0) 0 40 0
Niagara* 1(0) 1 0 0
Oneida* 0 1 0 0
Onondaga* 0 0 7 0
Ontario 0 1 0 0
Orange* 1(0) 0 0 0
Orleans 0 0 0 0
Oswego* 1(0) 0 18 0
Otsego 0 1 0 0
Putnam 0 0 0 0
Rensselaer 0 0 0 0
Rockland* 0 0 69 0
Saratoga 1(0) 0 0 0
Schenectady 0 0 0 0
Schoharie 0 0 0 0
Schuyler 0 0 0 0
Seneca 0 0 0 0
St. Lawrence 0 0 0 0
Steuben 0 0 0 0
Suffolk* 4(0) 0 178 0
Sullivan 0 0 0 0
Tioga 0 0 0 0
Tompkins 0 0 0 0
Ulster 0 0 0 0
Warren 0 0 0 0
Washington 0 0 0 0
Wayne 0 0 0 0
Westchester* 2(0) 0 7 0
Wyoming 0 0 0 0
Yates 0 1 0 0
NYS - Excluding NYC (Total) 22(0) 13 340 0
Bronx* (NYC) 1 0 12 0
Brooklyn* (NYC) 3 0 50 0
Manhattan* (NYC) 0 0 8 0
Queens* (NYC) 2 0 131 0
Staten Island* (NYC) 4 0 48 0
New York City (Total) 10 0 249 0
New York State (Total) 32(0) 13 589 0
  • 1 Number in parentheses indicates number of deaths. New York City deaths not listed by borough.
  • * County conducting arboviral mosquito surveillance.

Notes of clarification:

  • Not all animals testing positive are necessarily ill or symptomatic of WNV infection. Some specimens are tested only for surveillance purposes. WNV-positive birds are not listed.