Pfizer COVID-19 vaccine “very promising” but has cold chain issues: WHO on Tuesday, November 10, 2020 in The Hindu - Science with No comments The necessity to keep the vaccine in extremely cold storage could complicate any inoculation programme, above all in regions of Asia or Africa where the climate is warm from The Hindu - Science https://ift.tt/36EkCX9 Share: Email ThisBlogThis!Share to TwitterShare to Facebook
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