HomeNewsOpinionThere’s hope in Tamil Nadu’s fight against COVID-19

There’s hope in Tamil Nadu’s fight against COVID-19

A few errors from the state government and the inevitable easing measures have countered the good work done so far—but, with one of the better public health systems in India, Tamil Nadu has the capability to flatten the curve

May 13, 2020 / 15:45 IST
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Representative image
Representative image

One state, which until three weeks ago was doing relatively well in managing the COVID-19 crisis, was Tamil Nadu. On April 23, Tamil Nadu had 1,683 confirmed positive cases, and now (May 13) it has over four times as many patients at 9,000-plus positive cases. This spike in cases happened thanks to a super cluster that spread from the Koyambedu wholesale market in Chennai. Chennai itself has become a red hot COVID-19 centre vaulting from 400 cases on April 23 to 4,882 on May 12.

In Tamil Nadu the first coronavirus case was reported on March 7, and then there was a lull until March 18 when the case count started to increase. By then the state government had already started screening at airports; but this was little more than using a thermal scanner and asking passengers to fill out a self-declaration form — both of which were of little benefit as we now know.

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The case count remained low in the early days but began to spike soon after the news came about the Tablighi Jamaat congregation in Delhi. Around 1,500 members from Tamil Nadu had visited Delhi for the meet and the State scrambled to trace and test them. The government claimed to have traced almost all of them, though it is speculated that a few remained untraced. The next few weeks until April 3 was all about those who attended the ‘Delhi meeting’, as it was referred to later being renamed just as ‘single source’.

In terms of testing, Tamil Nadu started off slowly claiming that it was following the ICMR guidelines and there was no need to test more; but as pressure increased from the media and medical experts, the State stepped up the number of tests done each day. As of May 12, Tamil Nadu has done the maximum number of tests in India (266,687 samples tested) and are currently testing over 3,367 people per million population — a rate higher than Vietnam and Taiwan, both of whom are seen as successful examples of nations that have controlled the outbreak.

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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