Вот первоисточникhttps://www.gov.uk/government/news/new-national-surveillance-of-possible-covid-19-reinfection-published-by-phe?utm_medium=email&utm_campaign=govuk-notifications&utm_source=c105372c-e3c3-48f8-91d1-7df9806ccf4c&utm_content=daily&fbclid=IwAR2Omm8F6BmkryjiRWI2nQiKPXNa7SM-VZNUlrjMW-cyjxH0xf23T4cIOWQ