Why having allergies can reduce the risk of contracting covid - BBC News Brazil

Why having allergies can reduce the risk of contracting covid – BBC News Brazil

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In the course of the Covid-19 pandemic, we have discovered who may be at greatest risk of contracting the virus and developing the most severe cases of the disease.

Advanced age, obesity and various comorbidities such as diabetes and hypertension are some of these risk factors. High body mass index (BMI) also appears to be associated with an increased chance of contracting the virus in the first place.

But what about the factors that can make someone less likely to get covid? Interestingly, research shows that having allergies can reduce your risk.

Allergies are very common. At least 400 million people worldwide are affected by pollen allergies, known in English as hay fever. About 300 million people suffer from allergic asthma (induced by inhaling allergens), while food allergies affect about 250 million.

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