efficacy
More News
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China considers mixing Covid-19 vaccines to boost protection rate
Available data shows Chinese vaccines lag behind others including Pfizer and Moderna in terms of efficacy
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China gives its first Covid-19 vaccine approval to Sinopharm
Pakistan announces a 1.2 million dose purchase deal with Sinopharm
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Moscow starts mass Covid-19 vaccination with its Sputnik V shot
Scientists raise concerns about launching mass vaccinations before full trials to test its safety and efficacy
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Efficacy, backlogs and the court system
An analysis of Pakistan's judiciary
