"Do Not Mix COVID-19 Vaccines from Different Manufacturers"

[Image source=Reuters Yonhap News]

[Asia Economy Reporter Cho Hyun-ui] In the United States and the United Kingdom, where COVID-19 vaccinations have begun, authorities recommend not mixing vaccines from different manufacturers.

According to Fox News on the 21st (local time), officials in these countries are ensuring that COVID-19 vaccines are not mixed.

Currently, both countries are distributing vaccines from more than one manufacturer. The U.S. is administering Pfizer and Moderna vaccines, while the U.K. is administering Pfizer and AstraZeneca vaccines.

However, the U.K. allows mixing in exceptional cases where the manufacturer of the first dose vaccine is unknown or the same vaccine is unavailable. They believe it is better to receive a vaccine from a different manufacturer than to only have one dose.

Experts criticized the U.K. government for not following science on this matter. They pointed out that there is no data on whether mixing different vaccines is safe, and that the decision to allow mixing was made without any evidence.

A vaccine expert in the U.S. said, "Vaccines should not be mixed until related research results are available," adding, "If a different vaccine was administered for the second dose than the first, evidence is needed to confirm whether it worked properly."

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