Southwestern Public Health was reporting seven cases of COVID-19 confirmed by medical testing in Elgin and St. Thomas on Wednesday, April 29.
St. Thomas has four cases, and Aylmer, Malahide and Dutton Dunwich one each.
The health unit reported 16 confirmed cases ongoing in Oxford.
So far, 32 residents of Elgin, St. Thomas and Woodstock have recovered from COVID-19, while four have died from it.
