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Last Updated : Aug 11, 2020 03:28 PM IST | Source: Moneycontrol.com

PM Modi says contact-tracing, surveillance most effective weapons against coronavirus pandemic

The Centre and states have been able to work as a team in the fight against COVID-19, Prime Minister Narendra Modi said.

PM Modi (India Government Press Information Bureau via AP)
PM Modi (India Government Press Information Bureau via AP)

Prime Minister Narendra Modi August 11 said 10 states account for over 80 percent of active COVID-19 cases and if the virus is defeated in these states, then the country will emerge victorious in its fight against the COVID-19 pandemic.

In a video conference with Chief Ministers of 10 states most hit by COVID, PM Modi said the recovery rate has shot up in Bihar, Uttar Pradesh, Punjab, Andhra Pradesh, Maharashtra and Tamil Nadu proving that government efforts have been effective.

The Centre and states have been able to work as a team in the fight against COVID-19, he said.

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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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"Our experience so far is that containment, contact tracing and surveillance are the most effective weapons against the coronavirus pandemic, with experts of the view that if positive cases are identified within 72 hours of onset, then infection slows down to great extent," the Prime Minister said.

PM Modi also said it was a matter of satisfaction that the average fatality rate in India has been going down and noted that it has been very low compared to the world average.

"The average fatality rate has been continuously decreasing while the recovery rate is increasing every day. This shows that measures being taken by us are in the right direction," Modi said.

Chief ministers of Andhra Pradesh, Karnataka, Tamil Nadu, West Bengal, Maharashtra, Punjab, Bihar, Gujarat, Telangana and Uttar Pradesh were invited for the virtual meet. Defence Minister Rajnath Singh also participated in the meeting.

India's novel coronavirus tally crossed the 22 lakh-mark with 53,601 fresh COVID-19 cases and 871 deaths. At present, there are 6,39,929 active cases of the coronavirus disease (COVID-19) and the total coronavirus cases now stands at 22,15,074.

Maharashtra, Tamil Nadu and Andhra Pradesh have reported the highest number of cases. However, infections are rising rapidly in states like Karnataka and Uttar Pradesh.

Globally, the confirmed number of coronavirus cases has reached 20 million, according to the tally kept by Johns Hopkins University.

(With PTI inputs)

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First Published on Aug 11, 2020 03:28 pm
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