ArrowArtboardCreated with Sketch.Title ChevronTitle ChevronIcon FacebookIcon LinkedinIcon Mail ContactPath LayerIcon MailPositive ArrowIcon Print
COVID vaccines

Booster shot increases COVID antibodies 45-fold: Japan hospital

Hokkaido facility measured effect of Pfizer 3rd dose with 300 of its staff

A health worker in Tokyo fills a syringe with Pfizer's coronavirus vaccine.   © Reuters

HAKODATE, Japan -- A third dose of Pfizer's COVID-19 vaccine can boost antibodies against the virus to more than 45 times their pre-shot levels, according to an analysis by Japan's Hakodate National Hospital.

The Hokkaido facility measured antibodies in the blood of 300 medical staffers at the hospital who received the booster in December, nine months after the second dose. The median level two weeks after the shot was 23,544 units per milliliter, compared with 515 beforehand.

Sponsored Content

About Sponsored Content This content was commissioned by Nikkei's Global Business Bureau.

Discover the all new Nikkei Asia app

  • Take your reading anywhere with offline reading functions
  • Never miss a story with breaking news alerts
  • Customize your reading experience

Nikkei Asian Review, now known as Nikkei Asia, will be the voice of the Asian Century.

Celebrate our next chapter
Free access for everyone - Sep. 30

Find out more