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Seropositivity for COVID-19 found to be lesser in smokers, vegetarians: CSIR

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New Delhi, Jan 18: Smokers and vegetarians were found to have lower seropositivity indicating that they may be at a lesser risk of getting infected by coronavirus, according to a pan-India serosurvey conducted by the CSIR.

Seropositivity for COVID-19 found to be lesser in smokers, vegetarians: CSIR

The survey also found that those with blood group 'O' may be less susceptible to the infection. The CSIR took samples of 10,427 adults for the study.

In July last year, the Ministry of Health of the Union reported that smokers were likely to be more vulnerable to Covid-19, as smoking increases the risk of virus transmission from hand to mouth, and cautioned that smoking tobacco products may increase the severity of respiratory infections and render people susceptible to coronavirus.

However, the study suggested that smokers are less likely to be seropositive and despite Covid-19 being a respiratory disease, smoking may be protective.

"The study found that higher seropositivity was found for those using public transport and with occupational responsibilities such as security, housekeeping personnel, non-smokers, and non-vegetarians.

In order to assess the presence of antibodies to SARS-CoV-2, the Scientific and Industrial Research Council (CSIR) took samples of 10,427 adult individuals working in its laboratories or institutions and their family members on the basis of voluntary participation.

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