Zydus’ COVID-19 vaccine shows 66.6% efficacy in Phase-3 interim analysis, company files for emergency use

No moderate case of COVID-19 disease was observed in the vaccine arm post administration of the third dose suggesting 100% efficacy for moderate disease. No severe cases or deaths due to COVID-19 occurred in the vaccine arm after administration of the second dose of the vaccine.

from Moneycontrol Business News https://www.moneycontrol.com/news/business/zydus’-covid-19-vaccine-shows-666-efficacyphase-3-interim-analysis-company-files-for-emergency-use_15245821.html