Vector-Borne Disease - Statistics and Trends
The following is a summary from the Vector-Borne Disease Team's seasonal highlights.
Mosquitoes
Year | # of West Nile Virus Positive Traps | # of West Nile Virus Human Cases | # of Mosquito Treatments | # of Catch Basins Completed |
---|---|---|---|---|
2022 |
0 |
0 |
326 | 27,325 |
2021 |
1 |
0 |
958 | 63, 171 |
2020 |
1 |
1 |
1253 | 108,381 |
- There have been 0 reported human cases of Eastern Equine Encephalitis (EEE) in Middlesex-London.
- There have been 0 mosquitoes caught in Middlesex-London that are capable of carrying Zika Virus.
Ticks Submitted to the Middlesex-London Health Unit
Total | 102 | 74 | 14 | 40 | 21 | 5 | 27 | 13 | 1 |
# of Non-Vector Ticks Submitted | # of Blacklegged Ticks Acquired Within Middlesex-London | # of Blacklegged Ticks Acquired Outside of Middlesex-London | |||||||
---|---|---|---|---|---|---|---|---|---|
2020 | 2021 | 2022 | 2020 | 2021 | 2022 | 2020 | 2021 | 2022 | |
January |
0 |
0 |
0 |
2 | 0 | 0 | 0 |
0 |
0 |
February | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
March | 0 | 0 | 0 | 3 | 0 | 0 | 4 | 1 | 0 |
April | 3 | 16 | 0 | 3 | 11 | 1 | 3 | 8 | 0 |
May | 28 | 23 | 3 | 2 | 4 | 3 | 4 | 0 | 0 |
June | 49 | 24 | 11 | 5 | 2 | 1 | 4 | 1 | 1 |
July | 13 | 7 | 1 | 0 | 1 | 0 | |||
August | 4 | 4 | 0 | 0 | 0 | 0 | |||
September | 5 | 0 | 3 | 0 | 1 | 1 | |||
October | 0 | 0 | 11 | 2 | 6 | 1 | |||
November | 0 | 0 | 10 | 2 | 4 | 1 | |||
December | 0 | 0 | 0 | 0 | 0 | 0 |
In the case of Lyme disease, a 'vector' is the term used to describe a tick species that can transmit (pass) Lyme disease through a bite. Blacklegged ticks are capable of transmitting Lyme Disease in Ontario. Other 'non-vector' ticks cannot transmit Lyme disease. View the Lyme Disease web page for more information.
Active Tick Surveillance in Middlesex-London
Year | Number of Blacklegged Ticks Found Tick Dragging |
2022 | 1 |
2021 | 34 |
2020 | 107 |
Lyme Disease Cases in Middlesex-London
Year | Number of Confirmed/Probable Human Lyme Disease Cases in Middlesex-London Residents |
2022 | 8 |
2021 | 5 |
2020 | 2 |
Vector-Borne Disease Surveillance Reports
- Visit Public Health Ontario’s web page to read the Vector-Borne Disease Surveillance Reports for the province of Ontario.
- Visit the Government of Canada's web page to view National Surveillance Reports.
Additional Information
For more information about the Vector-Borne Disease Team or information about Vector-Borne Diseases and human health, please continue to browse our website, or call the Health Unit at 519-663-5317.
Date of creation: April 18, 2018
Last modified on: July 5, 2022
Last modified on: July 5, 2022