Pfizer and Moderna COVID-19 vaccines may provide protection against the virus for years, study finds

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BREAKING NEWS: Pfizer and Moderna COVID-19 vaccines may provide LIFETIME protection against the virus, study finds

  • New study looked at people given two doses of either the Pfizer-BioNTech or the Moderna vaccine  
  • Recipients had strong immune responses and developed neutralizing antibodies against at least three variants
  • This could mean that people who get mRNA vaccines will not need booster shots 


Both the Pfizer-BioNTech and Moderna vaccines may provide lifetime protection against COVID-19, a new study suggests.

Researchers found that people who received either of the two-dose shots, which use new messenger RNA (mRNA) technology, had strong and ‘persistent’ immune responses.

What’s more, the vaccines produced high levels of neutralizing antibodies against three variants of the virus.

This could mean that Pfizer and Moderna recipients could have long-lasting immunity – for years or potentially the rest of their lives – and may not even need boosters, reported first by The New York Times.

‘It’s a good sign for how durable our immunity is from this vaccine,’ lead author Dr Ali Ellebedy, an immunologist at Washington University in St Louis told the newspaper.

Recipients had strong immune responses and developed neutralizing antibodies against at least three variants1. Pictured: Vials of the Pfizer-BioNTech and Moderna coronavirus vaccines

Recipients had strong immune responses and developed neutralizing antibodies against at least three variants1. Pictured: Vials of the Pfizer-BioNTech and Moderna coronavirus vaccines

For the study, published on Monday in the journal Nature, the team recruited 14 people who received both doses of the Pfizer vaccine.

Among them, eight people had previously has been infected with COVID-19.

Researchers looked at lymph nodes, which produce a type of immune system cell known as a memory B cell.

Memory B cells lock onto the surface of invading pathogens and mark them for destruction by other immune cells.

They also can circulate in the bloodstream for years – even decades – and the immune system can call up on them if there is another infection. 

This is a breaking new story and will be updated. 

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