Since the restrictions were released at the beginning of the year, the number of people testing themselves has been low, something that still remains.

On the other hand, the proportion of positive test results has increased markedly and now the region is raising concerns about the summer, not least regarding elderly housing.

Infection can be fatal in the summer heat

The proportion infected with covid-19 has not least been noticed in municipal care, in nursing homes.

There, Mats Martinell wants to call for special caution.

- Keep your distance and spray your hands if you visit the elderly, because in this heat wave, even a slight covid infection can knock out the elderly and fragile, he says.

In the clip: Mats Martinell talks about the latest measurement of covid-19 in the wastewater in Uppsala.