Sinovac Recipients May Need A Second Booster Dose To Build Immunity Against Omicron Variant

Sinovac Recipients May Need A Second Booster Dose To Build Immunity Against Omicron Variant
Source – The Edge Markets

According to Khairy Jamaluddin, the Health Ministry was examining the necessity for a second booster dose in light of the worldwide increase of the highly infectious Covid-19 Omicron variant.


Sinovac Recipients May Need A Second Booster Dose To Build Immunity Against Omicron Variant

According to Khairy Jamaluddin, the Health Ministry was examining the necessity for a second booster dose in light of the worldwide increase of the highly infectious Covid-19 Omicron variant.

When questioned if his ministry was aware of foreign research finding that two doses of Sinovac’s Covid-19 vaccine followed by a booster Pfizer-BioNTech shot still resulted in a poorer immune response against the Omicron variant than other variants, the health minister said that his government was.

Additionally, he was questioned if recipients of the Sinovac vaccination who had the Pfizer booster in Malaysia would need a fourth dose in the future.

Source - The Edge Markets

We have received the news (on the study). The technical team is studying the research and will make its recommendations to CITF as usual on whether those who received Sinovac (doses) and a Pfizer (booster) should be given another dose," he said at a press conference earlier today.

Khairy said that his ministry’s technical team would provide suggestions the Covid-19 Immunisation Task Force (CITF) after conducting its own research but added that it was still too early to draw any conclusive results from the study.

According to Reuters, the Sinovac two-dose regimen combined with the Pfizer dose exhibited an antibody response comparable to a two-dose mRNA vaccine.

Researchers from Yale University, the Dominican Republic’s Ministry of Health, and other institutions completed the study, which has not yet been peer-reviewed.

The two-dose Sinovac vaccine alone did not show any detectable neutralisation against Omicron, according to the study that analysed plasma samples from 101 participants in the Dominican Republic," the study said.

Akiko Iwasaki, one of the study’s authors, said on Twitter that recipients of CoronaVac (Sinovac) may need two more booster doses to obtain the protective levels needed against Omicron.

Source – Malay Mail

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