Single-dose vaccine may be effective for Covid-19 survivors: Study

Amid the ongoing COVID-19 vaccination drive across the globe, a study suggested that the second dose of coronavirus vaccine may not be needed for those who have recovered successfully from a prior COVID-19 infection.

As per the report, the research involved more than 260 individuals. It showed that a single dose of the Pfizer-BioNTech coronavirus vaccine for those who previously contracted Covid-19 can generate a response similar to those receiving the two doses of vaccine.

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Initially, the Pfizer and BioNTech vaccine is administered in two doses to provide full protection against the COVID-19.

The findings published in the journal Nature Medicine revealed that the vaccine observed that the "spike-specific IgG antibody levels and ACE2 antibody binding inhibition responses elicited by a single vaccine dose in individuals with prior SARS-CoV-2 infection were similar to those seen after two doses of vaccine in individuals without prior infection."

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It also stated that "the individuals with prior infection might have naturally acquired immunity that could be sufficiently enhanced by a single dose rather than a double dose of administered vaccine."

"We compared the responses of individuals with confirmed prior infection to those of individuals without prior evidence of infection," it added.

"Post-vaccine symptoms were more prominent for those with prior infection after the first dose, but symptomology was similar between groups after the second dose," it stated.

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-PTC News