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India could vaccinate 800 mn people, develop herd immunity with its 1.6 bn COVID-19 vaccine doses
Russia 'Sputnik V' vaccine promises to help people develop immunity against COVID-19 for two years: Here's all you need to know
Putin announces first 'registered' COVID-19 vaccine from Russia's Gamaleya Institute; his daughter among those inoculated
CanSino Biologics to begin final phase of human trials for its COVID-19 vaccine in Saudi Arabia
Animal testing: Scientists test several candidates on ferrets, monkeys in hopes of making a safe COVID-19 vaccine
Ferrets develop a fever and they also cough and sneeze, infecting each other much as people do.
