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Oxford/AZ’s COVID-19 Vaccine Cuts Virus Spread By 60%

Dosing Dilemma For Serum Institute

 
• By Vibha Ravi

Oxford University/AstraZeneca’s COVID-19 vaccine cuts the spread of the virus by 60%, apart from having 70% efficacy in reducing infections in vaccinated individuals. While that is good news for their Indian partner, Serum Institute, the 90% efficacy shown in a subset due to a dosing error causes a dilemma.

Hand stopping dominos
Stopping Infection Spread Is As Important As Immunizing Individuals • Source: Shutterstock

Soon after University of Oxford and AstraZeneca PLC’s announcement that their COVID-19 vaccine AZD1222 showed 70% efficacy in interim results from Phase III trials, their Indian partner, Serum Institute of India Pvt. Ltd., revealed that it also cut virus spread by 60%.

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