Booster Dose Of Covid Vaccine Needed To Fight Against Omicron: Study
NDTV
The study findings have so far highlight the need for booster dose in the context of Omicron variant, scientist said.
Neutralising antibody levels waned after six months in those who were fully vaccinated against the coronavirus with Covishield, Covaxin and a mix of both -- Covishield as the first dose and Covaxin as the second dose - with regard to Omicron variant, a study done by the National Institute of Virology (NIV) in Pune has indicated.
The heterologous vaccination regimen of administering the first dose of Covishield, followed by the second dose of Covaxin, however, had given a very good neutralising response against Delta and other Variants of Concern, Dr Pragya Yadav, a scientist at the NIV, said.
The study findings were published in the Journal of Travel Medicine recently.
The study involved three cohorts -- a heterologous group with 18 individuals who were inadvertently administered the first dose of Covishield and the second dose of Covaxin in Uttar Pradesh and the other two groups comprising 40 individuals each receiving two doses of homologous Covishield or Covaxin.
