THE ASAHI SHIMBUN
December 16, 2021 at 16:22 JST
Moderna Inc. vaccines that offer protection against the new coronavirus (Asahi Shimbun file photo)
The health ministry is poised to grant special approval for Moderna Inc. vaccines so they can be used for booster shots to protect against the novel coronavirus.
Its expert panel gave the nod for special approval on Dec. 15 and the ministry granted official approval on Dec. 16.
The government will cover the costs for the booster shots.
The Moderna vaccine will become the second approved for booster shots, following the Pfizer Inc. vaccine.
The government plans to use Moderna vaccines to move up the schedule for the rollout of booster shots, and it will allow people fully inoculated with Pfizer vaccines to receive Moderna booster shots.
People who were fully vaccinated at least six months prior will be eligible for the third jabs. The boosters will use half the amount of vaccine administered in the previous shots.
Moderna conducted clinical tests abroad, giving its booster shots to about 150 people aged 18 and older. Compared to when they got their second jabs, the number of neutralizing antibodies that people had, which block virus infections, increased by about 1.8 times after a booster shot.
The side effects experienced were about the same as those from the second shots.
People aged between 18 and 64 developed symptoms within seven days after the booster shots. Seven percent had a fever after getting the booster jab, compared to 15.5 percent within seven days after the second shot.
Meanwhile, 40.3 percent had chills compared to 45.8 percent from the second shot, while 58.9 percent had headaches compared to the earlier 56.1 percent. Muscle pain was also a common symptom at 49.6 percent after getting the booster, while that was 57.4 percent after the second shot.
The expected approval comes amid growing concerns about the Omicron variant, which might weaken the efficacy of vaccines.
But one tentative study suggests that booster shots can increase the number of neutralizing antibodies in people to help them fight off the Omicron variant.
The government is permitting “cross vaccinations,” allowing people to get booster shots of different vaccines from those they previously received.
Medical personnel began to receive Pfizer booster shots this month. Those who were fully vaccinated at least eight months earlier are now eligible for the boosters.
The government plans to use Moderna vaccines for inoculations at universities and companies, which will start in March.
According to the health ministry, it began accepting applications for vaccination programs from universities and corporations on Dec. 13. The ministry received about 1,200 applications over two days.
Companies and universities that applied need to plan out the number of people who will receive the booster shots, the schedules for the vaccination efforts and the number of vaccines that will be needed and submit them to the ministry in January.
(This article was written by Kai Ichino and Yuki Edamatsu.)
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