Better booster for CovShield-vaccinated people than Covovax single jab: Virologist

New Delhi: Virologist Dr Shahid Jameel said that Kovovax would be a better booster dose for people who have been given the Covishield vaccine than another dose of the same jab.

Jameel, former head of the Indian SARS-COV-2 advisory group, said, “The data available at this time suggests that of the vaccines approved in India, Covovax is a better booster in people with the Covishield-vaccinated than another dose of Covisheeld.” Will happen.” Genomics Consortia (INSACOG) told PTI.

Read | Senior citizens need not submit doctor’s certificate for precautionary doses, says government

Last week, Prime Minister Narendra Modi announced that a “precautionary dose” would be given to healthcare and frontline workers and citizens over the age of 60 and with comorbidities from January 10.

Such beneficiaries will be eligible for a booster dose after the completion of nine months i.e. 39 weeks from the date of second dose.

However, officials have said that the “precautionary dose” would be the third dose of the same vaccine that a person had taken earlier, PTI reported.

Kovovax, developed by US-based vaccine maker Novavax Inc and manufactured by Serum Institute of India, was approved by the government for emergency use on Monday.

Eminent virologist Gagandeep Kang said in an interview to the news portal ‘The Wire’ that there is currently no data in India about which vaccine should be used for the third dose.

Kang said a UK study recently assessed the immune response elicited in individuals who have already received two doses of the AstraZeneca (Covishield) vaccine with either a booster dose of the same vaccine or Novavax (CovoVax in India). known as) vaccine has been found.

The study found that a third dose of CovaShield increased the geometric mean ratio (GMR) by 3.25, while a booster dose of CovoVax caused an eight-fold increase and one of the mRNA vaccine did so by 24-fold, she said.

India 800. registered more than omicron Cases in 21 states and union territories so far.

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