Japan said on Friday it would consider sharing its COVID-19 vaccines with other countries as a ruling party committee urged it to provide a portion of its AstraZeneca PLC vaccine stock to Taiwan.

Taiwan is battling a spike in domestic infections and has vaccinated only about 1% of its population, while Japan has secured more than 400 million doses, double what it needs for its adult population.

“We think it’s important to ensure fair access to safe and effective vaccines in every country and region towards achieving universal health coverage,” Chief Cabinet Secretary Katsunobu Kato told a news conference.

“We will swiftly consider and look into a concrete course of policy with regard to how we provide other countries and regions with vaccines that exceed the amount for those needed at home.”

Masahisa Sato, the head of the Liberal Democratic Party’s committee on Taiwan relations, said earlier on Friday that the government should provide Taiwan with vaccines as soon as possible, adding “when Japan was in need, Taiwan sent us 2 million masks.”

Kato declined to comment on whether Tokyo had received supply requests from specific countries.

In Taipei, which reported 555 new domestic infections on Thursday, Health Minister Chen Shih-chung welcomed the news but said there had been no official notification, adding that if vaccine doses did come, they should come soon.

“It wouldn’t mean anything if they came later,” he told reporters.

Japan approved AstraZeneca’s vaccine last week and has contracted to buy 120 million doses. But there are no immediate plans to use the shots in the country amid lingering concerns raised internationally over rare blood clots.

AstraZeneca’s local partner, Daiichi Sankyo Co., started bottling the vaccine in March and the stockpile is currently estimated at around 30 million doses which will expire by September if not used.

The amount is set to increase as AstraZeneca added Nipro Corp. this week as its third local partner to conduct filling and packaging of the vaccine.

Japan started its inoculation drive in mid-February, later than most major economies and using imported doses of the shot developed by Pfizer Inc. and BioNTech SE.

A vaccine developed by Moderna Inc. also went into use this week with the opening of mass vaccination centers.

Japan has administered 10.6 million doses as of Wednesday, about a sixth of the vaccine it has imported so far, based on government data and schedules. By September, the projected supply will reach 414 million doses, double what the country needs for its adult population.

Prime Minister Yoshihide Suga will host a summit on June 2 about ensuring vaccine supply to needy nations through the World Health Organization’s COVAX program. So far, Japan has pledged money to the effort but no vaccines.

Japan will likely keep some of AstraZeneca’s adenovirus-type shots for people with allergies to mRNA-type vaccines from Pfizer or Moderna, and give away the rest, said Haruka Sakamoto, a physician and researcher at Keio University in Tokyo.

“Japan will probably announce that they will donate the AZ vaccine that they already have a contract with and supply COVAX with the AZ vaccine they will produce in Japan,” she said.

An AstraZeneca spokeswoman said it was up to the government how the doses were used.

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