Collaborate With Us

Mosquitoes test positive for West Nile virus in Ajax and Pickering

Whitby, Ontario – Durham Region Health Department has received notification that adult mosquitoes in Ajax and Pickering have tested positive for West Nile virus (WNv) disease. There have now been six mosquito batches in Durham Region that have tested positive for the virus this season including two in Clarington, two in Oshawa, and one each in Ajax and Pickering.

The current batches of positive mosquitoes were collected from Health Department mosquito trap sites located in Ajax and Pickering. The...

Durham Region Health Department advising of potential exposure to confirmed measles case

Whitby, Ontario – Durham Region Health Department is notifying the community of a potential measles exposure at a local area church. The case is from outside of Durham Region but visited this church while contagious.

The Health Department is currently working to identify known contacts who may have been exposed. There have been no cases of measles reported in Durham Region so far for 2025.

The Health Department advises anyone who believes they may have been exposed to the measles virus at the...

Mosquitoes test positive for West Nile virus in Oshawa

Whitby, Ontario – Durham Region Health Department has received notification that adult mosquitoes in Oshawa have tested positive for West Nile virus (WNv) disease. With this latest positive result, there have now been two mosquito batches in Durham Region that have tested positive for the virus this season; the first was in Clarington earlier in July.

The current batch of positive mosquitoes was collected from Health Department mosquito trap sites located in Oshawa. The Health Department sets...

Blue-green algae found in water samples tested from eastern shore of Lake Scugog

Whitby, Ontario – Durham Region Health Department has issued a Blue-Green Algae Advisory for the eastern shore of Lake Scugog near William’s Point Rd in Caesarea, following test results from a water sample collected on July 9 by the Ontario Ministry of the Environment, Conservation and Parks. The water sample confirmed the presence of blue-green algae in the area.

During summer months, changing weather conditions can lead to increased occurrences of blue-green algae in Lake Scugog and other...

Health Department advises residents to prepare for potential heat event this weekend

Whitby, Ontario – Forecasted temperatures for this upcoming weekend are expected to meet the criteria for a heat warning in both north and south Durham Region. This is the first heat event of 2025 under Durham Region Health Department’s seasonal Heat Warning and Information System. This is expected to be a multi-day heat event, possibly continuing into next week.

Everyone is encouraged to stay alert and take precautions; remember to visit neighbours, friends and older family members – especially...