What You Need To Know
Please find attached the NJDOH vector-borne surveillance report for week 23.
Report highlights:
- Six additional mosquito pools tested positive for West Nile Virus (WNV) since last week’s report. Nineteen mosquitos have tested positive to date in 2026 from nine counties.
- The average number of Culex mosquitoes, which are associated with WNV transmission, was highest in Hudson and Union counties.
- There have been no human or animal cases of WNV in 2026. There have been no human, animal, or mosquito detections of Eastern equine encephalitis (EEE) or Jamestown Canyon virus (JCV) in 2026.
- The number of Lyme disease cases this week increased and is level with historical averages.
- The number of tick-related emergency department visits decreased this week but remains above historical averages.
N.J. vector-borne disease data is available online: https://dashboards.doh.nj.gov/views/public_dashboard/Intro and can be accessed on the “Fight the Bite N.J.” webpage: https://www.nj.gov/health/cd/topics/vectorborne.shtml.
Previous reports can be accessed anytime on our website at: https://www.nj.gov/health/cd/statistics/arboviral-stats/index.shtml