Zoonotic Disease Seasonal Updates

Updates will be provided during the months of highest zoonotic incidence (typically June-September).

Rabies

Rabies has been found in bats, skunks, and a few other species in Weld County.  People and pets that have contact or suspected contact with a rabid animal should be assessed for risk of rabies and possible treatment.  

As of 9/22/2022, there have been five skunks and one bat that have tested positive for rabies in Weld County in 2022.

2022 Animal Rabies Cases

If points do not appear on smaller map (above), hit your refresh button or View Larger Map.

View 2021 Map

View 2020 Map 

View 2019 Map

View 2018 Map

West Nile Virus

Mosquitoes are trapped in three zones in Weld County during the West Nile Virus (WNV) season (approximately June - September). See a map of these Sentinel Zones(PDF, 3MB).

To date, 57 mosquito pools have tested positive for WNV: 

Week of 6/27/22 - one in Zone 3
Week of 7/4/22 - one in Zone 2
Week of 7/11/22 - four in Zone 3
Week of 7/18/22 - four in Zone 2; three in Zone 3
Week of 7/25/22 - one in Zone 2; three in Zone 3
Week of 8/1/22 - three in Zone 1
Week of 8/8/22 - two in Zone 1; four in Zone 2; four in Zone 3
Week of 8/15/22 - two in Zone 1, five in Zone 2; two in Zone 3
Week of 8/22/22 - three in Zone 1; six in Zone 2; three in Zone 3
Week of 8/29/22 - one in Zone 1; two in Zone 2; three in Zone 3

Human Cases/Deaths:  As of 9/29/22, there have been 66 confirmed or probable cases of WNV reported in Weld County, and 1 death.

Animal Cases:  Two horses have also tested positive for WNV in Weld County (one during the week of 8/1/22 and one during the week of 8/8/22.) 

Mosquito counts are slightly below average for this time of year and Culex mosquitoes (West Nile virus vector mosquitoes) are just above average.

Mosquito Count_9-11-22.png

Mosquito Culex Count_9-11-22.png

 Prevention practices are recommended!

  • Use insect repellant.
  • Wear long sleeves and pants to reduce mosquito bites.
  • Drain standing water near your home to prevent mosquito breeding.
  • Use screens on windows and doors to keep mosquitoes out of your home.

Plague

There are no current cases of plague reported or diagnosed in Weld County for 2022.

Prevention:  Avoid contact with sick wildlife, protect yourself and your pets from fleas and ticks, and keep pets current on a veterinarian-approved flea and tick treatment.

Tularemia

There are no current cases of Tularemia reported or diagnosed in Weld County for 2022.

Prevention:  Use insect repellent, wear gloves when handling sick or dead animals, and avoid mowing over dead animals.

Hantavirus

There are no current cases of Hantavirus reported or diagnosed in Weld County for 2022.

Prevention:  Avoid exposure to mouse droppings and mouse-infested areas.