According to research conducted by a top research body, Smokers and vegetarians were discovered to have lower seropositivity, while those with blood group ”O” may be less susceptible to coronavirus.
The pan-India serosurvey, completed by the Council of Scientific and Industrial Research (CSIR), studied the presence of antibodies against SARS-CoV-2. The virus that affects the coronavirus disease (COVID-19), and their neutralization capability to infer possible risk factors for infection.
The study, done by a team of 140 doctors and scientists, analyzed 10,427 adult individuals working in more than 40 CSIR laboratories and centres in urban and semi-urban settings, and their family members. These people willingly participated in the survey.
The survey indicated that despite COVID-19 being a respiratory disease, smoking might be acting as the first line of defense due to its role in expanding mucous production.
It, however, advised that there was a need for focused mechanistic studies to infer the effect of smoking and nicotine on coronavirus infection.
It implied that vegetarian food rich in fiber might have a role to play in giving immunity against COVID-19. Due to its anti-inflammatory properties by mutation of gut microbiota.
The survey also found that those with blood group ”O” may be less vulnerable to infection, while ”B” and ”AB” were at a higher risk.
Seropositivity was highest for blood group type ”AB”, followed by B, it said, adding that blood group ”O” was found to be associated with a lower positivity rate.
Shantanu Sengupta, one of the co-authors of the paper, said the paper was formerly peer-reviewed.
Earlier, two studies from France and similar reports from Italy, China, and New York reported lower COVID-19 infection rates among smokers.
A study by the Centers for Disease Control and Prevention (CDC), which told over 7,000 people in the US who tested positive for COVID-19, also had similar findings.
Interestingly, the study displays that only 1.3 percent of survey participants were smokers, compared to the CDC report that 14 percent of all Americans smoke.
Similarly, UCL (University College London) academics that looked at 28 papers across the UK, China, France, the US, and found the proportions of smokers among hospital patients were lower than foreseen.