A test centre in Buncrana, Co Donegal has the highest swap positivity rate in the country, where about 28% of people who booked a test have received a positive result.
Local GP Dr Denis McCauley has described it as a “jaw-dropping” figure.
“Positivity rates, remember, could be 2.8% nationally, we get very excited when they’re about 9% or 10% but 25% to 26% is exceptionally high,” Dr McCauley said.
About 12% of Covid-19 tests taken in Co Louth are coming back positive, the highest in the country.
The second highest swab positivity rate by centre is Tallaght Stadium at 23%, followed by Castlesaunderson in Cavan, at 18%, then Ardee in Louth and South Douglas in Cork, which both have a rate of 14%.
Walk-in centres in Tullamore and Limerick also saw high positivity rates, at 22% and 16.7% respectively.
Dr McCauley is urging people to keep their guard up.
“If you’re going indoors, and there’s somebody in that grouping that has not been vaccinated, you should wear a mask because it is in these situations that the spread is particularly easy,” he said.
The five counties with the highest percentage of positive tests are Louthm followed by Offaly, Donegal, Cavan and Monaghan