Home Current News The world’s largest vaccine maker is producing 40 million units of a...NewsCurrent NewsThe world’s largest vaccine maker is producing 40 million units of a coronavirus vaccine on trial in Oxford, without knowing whether it worksApril 27, 202068FacebookTwitterPinterestWhatsApp The Serum Institute of India produces 1.5 billion vaccine units a year, and it wants to get ahead of demand for a COVID-19 vaccine.Source: yahoo.com/news