The use of different types of COVID-19 vaccine was discouraged pending studies, according to a health expert.
A health expert on Sunday discouraged the use of different types of COVID-19 vaccine in order to avoid possible adverse effects.
Dr. Rontgene Solante, an infectious disease expert, on Sunday told CNN Philippines that those who had already been vaccinated with a particular type of COVID-19 vaccine should refrain from receiving a different type of COVID-19 vaccine as the effects of mixing COVID-19 vaccine technologies have yet to be analyzed.
“With different (vaccine) platforms, there are no studies yet to determine…how it will interfere with antibody production,” Solante said.
In order to avoid possible adverse effects, Solante said that receiving more than one type of COVID-19 vaccine was discouraged “until such time we have results that platforms can be mixed in terms of sequential doses“.
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There were different types of COVID-19 vaccine: mRNA, inactivated, viral vector, and subunit.
For instance, those COVID-19 vaccines by Sinovac and Sinopharm were examples of the inactivated type; those COVID-19 vaccines by AstraZeneca and Sputnik V were examples of the viral vector type; and those COVID-19 vaccines by Pfizer and Moderna were examples of the mRNA type.
Meanwhile, COVID-19 vaccines from Pfizer-BioNTech, AstraZeneca-Oxford, and Sinovac were the only ones that had so far received emergency use approval (EUA) from the country’s Food and Drug Administration (FDA).
The Philippines on Sunday received its first vaccine shipment after the Chinese government donated 600,000 Sinovac’s CoronaVac COVID-19 vaccine doses.
Uniformed personnel and health workers were expected to be first to receive Sinovac COVID-19 vaccine doses.
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