HomeNewscoronavirusCoronavirus pandemic | Tamil Nadu to return 24,000 rapid testing kits to China

Coronavirus pandemic | Tamil Nadu to return 24,000 rapid testing kits to China

The announcement came hours after the Indian Council of Medical Research (ICMR) asked states to stop using the COVID-19 rapid antibody kits procured from two Chinese companies, calling for the same to be sent back to the suppliers.

April 27, 2020 / 22:37 IST
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Representative image
Representative image

The Tamil Nadu government on April 27 announced that it will be returning the 24,000 rapid test kits imported from China. The announcement came hours after the Indian Council of Medical Research (ICMR) asked states to stop using the COVID-19 rapid antibody kits procured from two Chinese companies, calling for the same to be sent back to the suppliers.

Read More | ICMR advises states against using antibody test kits of Guangzhou Wondfo Biotech, Zhuhai Livzon Diagnostics

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The government and opposition DMK clashed over the pricing of the kits, with the latter demanding 'transparency' while the ruling dispensation asserted that the procurement was done based on rates fixed by the Centre.
The ICMR, the country's apex health research body, had told states it "evaluated the kits of Guangzhou Wondfo Biotech and Zhuhai Livson Diagnostics in field conditions".

"The results have shown wide variation in their sensitivity, despite early promise of good performance for surveillance purpose", it said.

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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