Mutations, concerns about vaccine immunity
December 4, 2021
A healthcare worker conducts a polymerase chain reaction Covid test on a traveller at OR Tambo International Airport in Johannesburg on November 27 after several countries banned flights from South Africa following the discovery of ...
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With Omicron on the doorstep, Bangladesh announces new travel rules
December 4, 2021
Bangladesh desk: Amid the global scare over the new Omicron variant of Covid-19, Bangladesh has announced new travel rules, making a 14-day institutional quarantine mandatory for all travellers from seven African countries, reports UNB. The ...
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7 Covid vaccines as third dose can boost immunity, says study
December 4, 2021
Seven jabs used as boosters against Covid-19 mostly produced a strong immune response, though results varied depending on the vaccine combination, a study said on Friday. Last June researchers in the UK looked at about ...
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