Vietnam's homegrown Covid vaccine has 52 pct efficacy: manufacturer

A Nanocovax vial at the factory of Nanogen Pharmaceutical Biotechnology JSC in HCMC, June 2021. Photo by VnExpress/Quynh Tran

Nanocovax, Vietnam’s first Covid-19 vaccine which is nearing commercial production, has an efficacy rate of 52 percent, its producer, Nanogen Pharmaceutical Biotechnology JSC, said.

Speaking at a meeting with the Ministry of Health’s Ethical Evaluation Committee in Biomedical Research on Wednesday, company executives said clinical trials showed that the protection was 86.7 percent for 42-90 days after being fully vaccinated with two doses, 78.5 percent after 120 days and 51.6 percent after 180 days.

The protection against severe progression was 92 percent, and the protection against death was 100 percent, they said.

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