Pfizer's Covid vaccine may not work as well if you're fat

Pfizer's Covid vaccine may not work as well if you're fat: Obese people make HALF as many antibodies after getting two doses, study claims

Pfizer's coronavirus vaccine may be less effective in obese people, scientists have warned.

Severely overweight healthcare workers generated only half the antibodies to fend off Covid after receiving two doses of the jab, compared to healthy people.

Italian researchers said obese people may need another top-up vaccine, or bigger doses, to protect them against the disease.

Severely overweight people are already considered to be more at risk of becoming critically ill or dying if they get infected.

Scientists say this may be because they are more likely to have other conditions —such as diabetes and high blood pressure — that make them more vulnerable.

Experts today said it was also well known obesity — defined as having a BMI above 30 — hampers the effectiveness of jabs.

Previous research has suggested the flu vaccine, which is dished out every winter, could be half as effective in severely overweight people.

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