London: By Christoffer van Tulleken, UCL London, May 21 (The Conversation) A superficial reading of the history of vaccination might lead you to believe that it is simple. Dried smallpox pustules had been used for 1,000 years to inoculate people against smallpox before the first successful vaccine trial, conducted by Edward Jenner in 1796 on a single eight-year-old boy. […]
Read MoreBeijing: China could have reported over 2.32 lakh COVID-19 cases by mid-February — more than four times of what was officially announced — if it had followed a broader criterion to count the total number of infections, a study has said. “We estimated that there were at least 2,32,000 infections in the first epidemic wave […]
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