Researchers from Hong Kong reported that a 33-year-old man had become infected with the coronavirus for the second time. This is the first officially documented case of reinfection with Covid-19, The New York Times reports.
The man was first diagnosed on March 26, he had only mild symptoms. He later tested negative for the virus twice.
“The second infection was completely asymptomatic — his immune response prevented the disease from getting worse. It is kind of a textbook example of how immunity should work,” said Akiko Iwasaki, an immunologist at Yale University who was not involved with the work but reviewed the report at The New York Times’s request.
It is noted that people who do not have symptoms may still spread the virus to others.
As we reported earlier, on August 24, the U.S. Food and Drug Administration issued an emergency use authorization (EUA) for investigational convalescent plasma for the treatment of Covid-19.
"The EUA authorizes the distribution of Covid-19 convalescent plasma in the U.S. and its administration by health care providers, as appropriate, to treat suspected or laboratory-confirmed Covid-19 in hospitalized patients with Covid-19," says the message.