How effective is mixing the AstraZeneca and Pfizer vaccines? – Finance

Based on the limited data they collected through June, an injection of AstraZeneca followed by Pfizer It is safe and effective. This combination also appears to increase the likelihood of side effects such as aches and pains.

This may be because mixing and matching different types of vaccines can often produce a stronger immune response, said Lawrence Young, a virologist at the University of Warwick in the UK.

In some areas, health authorities have already approved mixing vaccines under certain conditions.

Now, a study conducted in South Korea revealed that a mixed vaccine first from AstraZeneca and then from Pfizer increased levels of neutralizing antibodies six times.

The study, led by the Korea Disease Control and Prevention Agency (KDCA), included 499 health care workers: 100 received mixed doses, 200 received two doses of Pfizer, and the rest were given two injections of AstraZeneca.

with AP . information