Researchers say a 33-year-old Hong Kong man is the first person confirmed to have Covid-19 twice
Researchers say a 33-year-old Hong Kong man is the first person confirmed to have Covid-19 twice, but further study is needed https://t.co/jqziNdi1iX pic.twitter.com/oGuBAa1HSu — CNN Breaking News (@cnnbrk) August 24, […]