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Vaccinating Covid-19 recovered patients a wasteful exercise
‘Vaccinating Covid-19 recovered patients a wasteful exercise’
India has vaccinated over six million healthcare workers within 24 days.
New Delhi: India has vaccinated over six million healthcare workers within 24 days.
Interestingly, health experts and virologists say that vaccinating a person who has already recovered from Covid-19 is a wasteful exercise as antibodies developed naturally are better and last longer than the ones developed with the help of vaccines. They believe that vaccines should be preserved for those who need it most and they base their arguments on two basic scientific observations.
Firstly, very few cases of Covid-19 re-infections have been reported across the globe. Secondly, scientific evidence regarding some respiratory viral diseases such as chicken pox and influenza suggest that natural antibodies work better than artificial ones acquired through a vaccine.
Noted epidemiologist Dr Jayaprakash Muliyil says, just 44 cases of Covid-19 re-infections have been reported globally, which confirms that natural antibodies provide long-lasting protection.
Meanwhile, as far as influenza is concerned, Dr Muliyil is of the view that natural antibodies provide better immunity when compared to vaccines because influenza viruses constantly change and mutate.
"So, you have to create a new vaccine because of the high mutation rate," he said adding that at present Sars-Cov-2, the virus that causes Covid-19 infection, has shown a very low mutation rate, which is good for vaccine development. Dr Sanjay Rai, President, Indian Public Health Association (IPHA), says that current scientific studies on Covid-19 show that natural immunity lasts very long and so Covid-recovered population should be excluded from the current vaccination drive. "As India is very close to herd immunity, we should not waste taxpayers' money on inoculating those people who have already recovered from Covid-19," Dr Rai, who is also one of the principal investigators of a vaccine clinical trial, said. He seconds Dr Muliyil and says that scientific evidence states that the human body produces long lasting antibodies against all such viruses which spread through respiration such as smallpox, measles and influenza.
