Japanese Study Shows that 98% of People Infected with COVID Have Antibodies 6 Months After Infection

This study is giving hope that a vaccine may give similar results:

A Japanese research team has detected antibodies that neutralized the virus that causes COVID-19 in 98% of people who had been sick with the disease in tests performed six months after they became infected.

The team, led by Yokohama City University professor Takeharu Yamanaka, said Wednesday it plans to conduct a follow-up survey to see whether the people will still have such antibodies a year after their infections.

In the latest survey, which was the largest of its type conducted in the country, the team checked blood samples from 376 people who had already recovered from COVID-19. The samples were collected six months after they were infected.

“In general, people with neutralizing antibodies are believed to carry a low risk of reinfection,” Yamanaka told a news conference.

“This gives some hope” in relation to the vaccines set to be released, with the study showing that immunity obtained through natural infection can last at least six months, according to Yamanaka.

Japan Times

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