2022 Weekly Updates

Arbovirus testing has started for the season. Dead birds can be reported to 1-877-968-2473 or directly to the District at 559-732-8606. Activity within the District is updated weekly. For information about WNV in the entire state of California, please visit westnile.ca.gov.

Mosquito Samples

West Nile Virus: 409        St. Louis Encephalitis Virus: 0        Western Equine Encephalitis Virus: 0

There were 90 new WNV positive mosquito samples from the following cities: (1) Cutler, (1) Delft Colony, (24) Dinuba, (1) Ivanhoe, (1) Orosi, (7) Peral, (3) Rural, (19) Sequoias Fields, (1) Seville, and (31) Visalia.  In 2022, a total of 2,408 mosquito samples have been tested so far with 409 samples positive for WNV.

A sample may contain up to 50 individual mosquitoes.

Dead Birds

West Nile Virus: 1         St. Louis Encephalitis Virus: 0         Western Equine Encephalitis Virus: 0

There were no new WNV positive dead bird from Visalia this week. Seven dead birds have been reported to the District in 2022.

Report dead birds to the WNV call center at 1-877-968-2473. Dead birds may be testable for WNV, SLEV, and WEEV. 

Human Cases

West Nile Virus: 0         St. Louis Encephalitis Virus: 0         Western Equine Encephalitis Virus: 0

No new human cases of WNV have been reported to Delta MVCD in 2022.

The Tulare County Public Health Department reports human cases to the District.