TOKYO -- COVID-19 vaccines should be taken once a year in the fall and early winter to fight infection during the holidays, according to proposed changes to Japan's policy for dealing with the disease.
Once-a-year boosters would be given ahead of year-end holidays

COVID-19 boosters in Japan would be offered once a year under proposed guidelines. (Photo by Kosuke Imamura)
TOKYO -- COVID-19 vaccines should be taken once a year in the fall and early winter to fight infection during the holidays, according to proposed changes to Japan's policy for dealing with the disease.