In this randomized, single-blind, prospective study, 680 adults who had not been previously immunized were inoculated intradermally with undiluted vaccine (mean titer, 10 8.1 pfu per milliliter), a ...
SINGAPORE - Two adults were each given a full vial of the undiluted Pfizer-BioNTech Covid-19 vaccine at a clinic in Hougang on Sept 15. Responding to queries, the Ministry of Health (MOH) said on ...
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