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Home / Health News / COVID-19: Kids may help achieve herd immunity in India but collateral damage may be too high, say some

COVID-19: Kids may help achieve herd immunity in India but collateral damage may be too high, say some

Many experts say that children may help build herd immunity after reopening of schools and colleges. But how far is this feasible?

By: Jahnavi Sarma   | | Published: July 21, 2020 3:15 pm
Tags: Coronavirus  coronavirus outbreak  covid-19 and children  herd immunity  
राजधानी की 23% जनता हो चुकी है COVID-19 का शिकार
राजधानी की 23% जनता हो चुकी है COVID-19 का शिकार

Schools across the country have been shut down since mid-March and millions of students are busy taking online classes in the academic year because of the pandemic. The Ministry of Human Resource Development (MHRD) last week sought suggestions from parents regarding the reopening of schools in the near future. It wants parents’ opinion on whether to open schools in August, September or October and Education Secretaries of all state and Union Territories have been directed to submit the suggestions from parents. According to some health experts, herd immunity is definitely playing a role in the country. Also Read - This monoclonal antibody 'cocktail' may block COVID variants: Study

Taking a cue from recent studies that examine COVID-19 transmission by and among children, researchers in the US said last week that children infrequently transmit COVID-19 to each other or to adults and schools can and should reopen while adhering to social distancing guidelines. This has led experts to believe that children are not driving the pandemic. Children are less likely to become infected and they are also less infectious. It is congregating adults who aren’t following safety protocols who are responsible for driving the upward curve. But how does this build herd immunity? Also Read - 85-year-old Dalai Lama gets first dose of COVID vaccine



Will reopening schools confer herd immunity?

As the government seeks suggestions from the parents regarding the reopening of schools in the near future, health experts on Monday entered a debate whether reopening schools and colleges will bring herd (community) immunity in India in the absence of a vaccine. Also Read - Maharashtra records over 10,000 new coronavirus cases, highest since October

While a school of thought put forth the idea that children are very good candidates to achieve herd immunity because their immunity is strong and they fast develop strong antibodies compared to the elderly, another questioned the theory, saying while the children might get infected and recover, those around them may never recover at all.

What experts say

According to Professor (Dr) J.C. Suri, Director and HOD, Pulmonology, Critical Care and Sleep Medicine, Fortis Hospital Vasant Kunj, this is a very contentious issue. People must very clearly understand the pros and cons. Herd immunity happens when a large percentage of the population becomes infected, is cured and has developed immunity against the infection. Then the remaining population is also protected. If around 60-70 per cent of the population becomes immune to COVID-19 infection, then the remaining population can also be protected. That is the concept of herd immunity.  “Overall, if you look at Covid’s progression in India, 100 people get infected, 20 people are in the hospital and become seriously ill, and about 5 per cent are in the ICU. The younger population, even if infected, is not becoming seriously ill, and there is very little mortality,” Dr Suri said in an interview with IANS.

Dr Gaurav Kharya, senior consultant at Paediatric Haematology, Oncology and Immunology, Indraprastha Apollo Hospitals, children have a robust immunity as compared to elderly population. The kids respond to any new pathogen (bacteria, antigen, virus and stimulus etc.) in a far better way. And once that response is mounted by the kid, it can be passed on to the others as well.

Dr P.S. Narang, Associate Director, Pediatrics, Max Super Specialty Hospital in Shalimar Bagh, herd immunity helps protect the people in the community indirectly who haven’t taken vaccines. Children are very good candidates because their immunity is strong and develops immunity and strong antibodies. The pneumococcal and flu vaccination have proved this.

A voice of caution

Dr Suri says  that while the children might get infected and recover, those around them, especially the elderly may not be so lucky if the virus is transmitted to them. And the spread will be quick. The number of people getting seriously ill would increase and at a rapid pace, overwhelming the hospital capacity. Therefore, it is a double-edged sword.

Herd immunity is basically community immunity. For example, the argument is that if a large number of children are immune to a particular disease in a community, then this immune status of such a large population would help prevent that disease in that particular community. But then herd immunity develops passively, and, for that, you do not allow people to get infected actively. Therefore, infection prevention control measures have to be taken at all levels.

Published : July 21, 2020 3:15 pm
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