People with blood type 0 have a lower risk of coronavirus infection

A new study has found that certain blood types are less likely to be infected with the coronavirus.

A large study of 225,556 Canadians found that people with blood type 0 or Rh- had a lower risk of infection with the SARS-CoV-2 coronavirus.

Among those tested, the risk of infection was 12% lower and the risk of serious illness or death from COVID-19 was 13% lower in people with blood type 0 compared to people with blood type A, B or AB. according to a study published this week in the Annals of Internal Medicine.

Respondents of all blood groups who are also Rh-negative are also somewhat more protected, especially if they have an O-negative blood type. People from these blood groups may also have developed antibodies that can detect some aspect of the new virus, study co-author Dr Joel Ray told Reuters.

“Our next study will look specifically at such antibodies and see if they explain the protective effect,” Ray said.

It is not yet entirely clear whether this new information may affect prevention or therapy for COVID-19.

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