“In order to assess population immunity, Rospotrebnadzor from June 15 to 19, 2020, in St. Petersburg conducts free testing of city residents for antibodies to COVID-19,” RIA Novosti reports the message from the city operational headquarters.

Those who wish to take the test must fill out the questionnaire on the website of the Pasteur St. Petersburg Scientific Research Institute of Epidemiology and Microbiology or at the Unified Information Center of Rospotrebnadzor.

In St. Petersburg, 18 835 cases of COVID-19 infection were recorded.

Earlier, the expert assessed the need for mass testing for antibodies to COVID-19.