China approves two more COVID-19 vaccines for wider use
TAIPEI, Taiwan (AP) — China approved two more COVID-19 vaccines for wider use Thursday, adding to its growing arsenal of shots.
The National Medical Products Administration gave conditional approval to a vaccine from CanSino Biologics and a second one from state-owned Sinopharm. Both are already being used among select groups of people under an emergency use authorization. China now has four vaccines to immunize its population.
CanSino said its one-shot vaccine candidate is 65.28% effective 28 days after the dose is given. It can be stored at 2 degrees to 8 degrees Celsius, “making it more accessible especially to the regions with underserved public health,” it said in a statement.
It relies on a harmless common cold virus, called an adenovirus, to deliver the spike gene of the coronavirus into the body. The body then makes the spike proteins, which generate an immune response. The technology is similar to both Astrazeneca’s and Johnson & Johnson’s vaccines, which rely on different adenoviruses.
It is the first COVID-19 vaccine developed by a Chinese company that requires only one shot.
A Sinopharm subsidiary, the Wuhan Institute of Biologics, said its vaccine candidate is 72.51% effective. It uses the same technology as a vaccine that has already been approved from Sinopharm’s Beijing subsidiary in which a live virus is killed and then purified. The inactivated virus is delivered via injection, triggering an immune response.
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