Weekly Animal-Borne Disease Reporting
The Boulder County Public Health Vector Control Program aims to prevent the spread of disease from vectors (animals) to humans.
Week 27: July 5-11, 2026
Rabies
- To date, 33 samples have been submitted for rabies testing. Two bats were submitted for testing this week. All samples were negative.
- Statewide, 20 animals have tested positive for rabies: Bat (15), Skunk (5).
- In 2025, seven bats tested positive in Boulder County.
Mosquitoes
- Culex mosquitoes (WNV carriers) and total mosquito counts (all species) remained slightly below the five-year average.
- Twenty sample pools were submitted for WNV/SLE testing. All pools were negative.
- No West Nile activity has been confirmed in Boulder County to date this season. 2 neurological cases of WNV have been reported this season in Colorado, 1 in Larimer County and 1 in Jefferson County.
Plague/Tularemia/Hantavirus
- No specimens were submitted for plague or hantavirus this week.
