PARIS: Sinovac's COVID-19 vaccine, a key tool in Brazil's fight against the disease, is less effective against the Gamma variant first detected in the virus-ravaged South American country, a study said on Friday .
In the small study, researchers at the University of Campinas in Brazil exposed both Gamma and a previous strain of the virus to antibodies in blood plasma from 53 vaccinated people and 21 people who had been previously infected with the virus. The antibodies from those more recently vaccinated were effective, but less so than against the previous virus strain.
But they said since clinical trials suggest the vaccine is effective in preventing severe illness and death, it could be that the immune response is more complex.At the time the WHO said it had a 51 per cent efficacy against symptomatic disease and 100 per cent against hospitalisation.
Technically all of the vaccines are less effective against not just the gamma but delta variant lmao, why must single out sinovac leh?
But 100% protection against severe covid-19 and hospitalization
Er...title not reflecting the contents. Wow 100% against hospitalization.
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