SEOUL — Some 760,000 South Koreans who have received the first dose of AstraZeneca Plc’s COVID-19 vaccine will be offered Pfizer Inc’s vaccine as a second shot due to shipment delays by global vaccine sharing scheme COVAX, the government said.
Several countries, including Canada and Spain, have already approved such dose-mixing mainly due to concerns about rare and potentially fatal blood clots linked to the AstraZeneca vaccine.
A Spanish study found that giving a dose of the Pfizer shot to people who already received the AstraZeneca vaccine is highly safe and effective, according to preliminary results.
Some 835,000 doses of AstraZeneca’s vaccine from COVAX were schedu…
Keep on reading: S.Korea to mix-and-match COVID-19 vaccine doses for 760,000 people