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Home / Health News / Vegetarians are at lesser risk of getting infected by Covid-19 virus: Study

Vegetarians are at lesser risk of getting infected by Covid-19 virus: Study

The survey also found that those with blood group 'O' may be less susceptible to the infection, while people with 'B' and 'AB' blood groups were at a higher risk.

By: Satata Karmakar   | | Updated: January 19, 2021 9:52 am
Tags: Coronavirus Infection  coronavirus pandemic  Coronavirus Prevention Tips  COVID-19  
Vegetarians are at lower risk of getting infected by Covid-19 virus: Survey
Vegetarians are at lower risk of getting infected by Covid-19 virus: Survey

Vegetarians and smokers were found to have lower seropositivity indicating that they may be at a lesser risk of getting infected by Covid-19, according to a pan-India serosurvey conducted by the Council of Scientific and Industrial Research in its nearly 40 institutes. Also Read - Common people in Delhi to get free COVID-19 vaccines in 3rd phase of immunization

For its study, the Council of Scientific and Industrial Research (CSIR) took samples of 10,427 adult individuals working in its laboratories or institutions and their family members, based on voluntary participation, to assess the presence of antibodies to SARS-CoV-2. Also Read - India vaccinates 11.6L people against COVID-19 on Saturday, highest single-day vaccination



Covid-19 – Your Blood Group Can Also Play An Important Role

The survey also found that those with blood group ‘O’ may be less susceptible to the infection, while people with ‘B’ and ‘AB’ blood groups were at a higher risk. Also Read - This monoclonal antibody 'cocktail' may block COVID variants: Study

The study which was piloted by CSIR-Institute of Genomics and Integrative Biology (IGIB), Delhi said of the 10,427 individuals, 1,058 (10.14 per cent) had antibodies against SARS-CoV-2.

The Activities Of The Covid-19 Antibodies

A follow up on 346 seropositive individuals among the samples after three months revealed ‘stable’ to ‘higher’ antibody levels against SARS-CoV-2, but declining plasma activity for neutralising the virus, Shantanu Sengupta, senior scientist at IGIB and one of the co-authors of the paper said.

A repeat sampling of 35 individuals, at six months, revealed declining antibody levels while the neutralising antibody remained stable compared to three months.

However, both the normal antibody as well as the neutralising antibody were much above the required threshold, he said.

Smokers Are More Vulnerable To Covid-19 Virus

According to the study, smokers are less likely to be seropositive is the first report from the general population and part of growing evidence that despite COVID-19 being a respiratory disease, smoking may be protective.

The paper also cites two studies from France and similar reports from Italy, New York and China, which reported lower infection rates among smokers.

Possible Risk Factors Of Coronavirus

Along with demographic information, possible risk factors were evaluated through self-filled online forms with data acquired on blood group type, occupation type, habits including smoking and alcohol, diet preferences, medical history, and transport type utilised.

“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,” Sengupta said.

“COVID-19 Pandemic And Tobacco Use in India”

In July last year, the Union Health Ministry had said smokers were likely to be more vulnerable to COVID-19 as smoking increases the possibility of transmission of the virus from hand to mouth, and warned that the use of tobacco products could increase the severity of respiratory infections and make people susceptible to coronavirus.

In its document ‘COVID-19 Pandemic and Tobacco Use in India’, the ministry had said experts have confirmed that smokers were more likely to develop severe symptoms or die from COVID-19, as it primarily attacked the lungs and warned against the use of any such products.

Smokers, it warned, were likely to be more vulnerable to COVID-19 as the act of smoking means that fingers (and possibly contaminated cigarettes) are in contact with lips which increased the possibility of transmission of the virus from hand to mouth.

The presence of such antibodies is a reliable marker of infection and recovery. However, some infected people may not develop antibodies.

How To Ensure Safety From Coronavirus?

Use of private transport, lower-exposure occupations, smoking, vegetarianism, and ‘A’ or ‘O’ blood groups appeared to be protective, using seropositivity as a surrogate for infection.

According to the researchers, this is for the first time that a study has been done in India wherein individuals have been monitored for three months (35 individuals) to six months (346 individuals) for antibodies including those with probable neutralising activity.

The CSIR has some 40 institutes covering the length and the breadth of the country and each specialises in different fields. The IGIB and its sister institute Centre of Cellular and Molecular Biology have been at the forefront in conducting the genome sequencing of coronavirus.

Published : January 18, 2021 6:10 pm | Updated:January 19, 2021 9:52 am
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