Page 223 - ராணி மேரி பல்கலைக்கழகம் ஆஃப் லண்டன் News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Sustainably Yours: What does a COVID vaccine mean? Sustainably Yours: What does a COVID vaccine mean? On November 23rd, 2020 AstraZeneca announced that it had a vaccine that is between 70 to 90% effective, depending on how they administer it. This came shortly after Pfizer and Moderna both announced vaccines with better than 90% efficacy. After 10 months of a global pandemic, this is the first bit of good news and a sign that the world will eventually be able to return to a semblance of normal.  Many questions remain to be answered about any of the COVID-19 vaccines. Photo: AFP The Thai government signed a contract with AstraZeneca for the production of 26 million doses, which will begin manufacturing mid-2021 and is in talks to manufacture hundreds of millions of doses to distribute throughout Asia. 

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