C
Chris Smith
Guest
Of all the coronavirus vaccine candidates that cleared clinical trials with proven efficacy and safety records, the Johnson & Johnson drug is the only one that uses a single-dose regimen. The Pfizer/BioNTech, Moderna, and AstraZeneca/Oxford vaccines, currently in use in various countries, require two doses three or four weeks apart. The Novavax drug, which is yet to receive emergency use authorization, also uses a two-dose regimen.
After nearly two months of COVID-19 vaccinations, researchers have released various studies that prove the efficacy of the vaccines in real-world conditions. The drugs all prevented severe illness, hospitalizations, and deaths. Studies have also shown that a single vaccine dose is enough to provide some protection after about two weeks following the first injection. Others show that COVID-19 survivors develop the same immune response after a single dose of vaccine as people who were never infected and received both doses. These indicate the current vaccination protocols warrant revisiting to increase coverage. Canada is already advising a major coronavirus vaccine change to allow more of its citizens to get immunized.
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Canada just made a major change to its coronavirus vaccine rollout originally appeared on BGR.com on Thu, 4 Mar 2021 at 18:19:45 EDT. Please see our terms for use of feeds.
Via BRG - Boy Genius Report