HomeNewscoronavirusDon't sit back thinking Omicron is milder, take vaccines, top expert advises people

Don't sit back thinking Omicron is milder, take vaccines, top expert advises people

Dr Raman Gangakhedkar, former head of epidemiology and communicable diseases at the ICMR, further said one must not wait for herd immunity to set in as that process will take time and a lot of people may die.

January 03, 2022 / 21:16 IST
Representative image (AFP)

A top epidemiology and communicable diseases expert on Monday said people should get themselves vaccinated at the earliest and not sit back thinking the Omicron variant of COVID-19 is milder because the virus will hunt for the "unvaccinated, the old and immunodeficient".

Dr Raman Gangakhedkar, former head of epidemiology and communicable diseases at the Indian Council of Medical Research (ICMR), further said one must not wait for herd immunity to set in as that process will take time and a lot of people may die.

"Instead of waiting for natural immunity (by infection), if we go for induced immunity through the vaccine, it will be good and the damage will be minimal. Getting an infection is never good even if it is mild. Today, it (Omicron) may look milder but has anyone thought of long-term effects on the human body," the health expert asked.

Asked if the current situation was the beginning of the end of the pandemic, Dr Gangakhedkar said the scare would persist till the vaccination coverage rises dramatically.

"After this, one thing will happen. The virus will start hunting for those who are unvaccinated, those who are older, and those who have immunodeficiency," he asserted. As per research, the Omicron variant has the ability to spread rapidly and even evades vaccine-induced immunity, he added

COVID-19 Vaccine

Frequently Asked Questions

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How does a vaccine work?

A vaccine works by mimicking a natural infection. A vaccine not only induces immune response to protect people from any future COVID-19 infection, but also helps quickly build herd immunity to put an end to the pandemic. Herd immunity occurs when a sufficient percentage of a population becomes immune to a disease, making the spread of disease from person to person unlikely. The good news is that SARS-CoV-2 virus has been fairly stable, which increases the viability of a vaccine.

How many types of vaccines are there?

There are broadly four types of vaccine — one, a vaccine based on the whole virus (this could be either inactivated, or an attenuated [weakened] virus vaccine); two, a non-replicating viral vector vaccine that uses a benign virus as vector that carries the antigen of SARS-CoV; three, nucleic-acid vaccines that have genetic material like DNA and RNA of antigens like spike protein given to a person, helping human cells decode genetic material and produce the vaccine; and four, protein subunit vaccine wherein the recombinant proteins of SARS-COV-2 along with an adjuvant (booster) is given as a vaccine.

What does it take to develop a vaccine of this kind?

Vaccine development is a long, complex process. Unlike drugs that are given to people with a diseased, vaccines are given to healthy people and also vulnerable sections such as children, pregnant women and the elderly. So rigorous tests are compulsory. History says that the fastest time it took to develop a vaccine is five years, but it usually takes double or sometimes triple that time.

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"In such conditions, if the maximum number of people get infections, the virus will make further mutations. The more chance we give to the virus, it will generate more mutations," he said. "(Rather than) thinking that any such mutations will favor humans as virulence level of the virus will go down and it will go away naturally, it is better everyone gets vaccinated," the expert added.

He said the virus becomes stable when everyone gets infected and then will try to lead a symbiotic relationship, but waiting for this happen and not taking vaccines is "stupidity". "Instead, the available preventive options are vaccination and COVID appropriate behaviour or CAB," Dr Gangakhedkar stressed.

PTI
first published: Jan 3, 2022 09:16 pm

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