HomeNewsIndiaCoronavirus pandemic | ICMR updates strategy, widens COVID-19 testing criteria

Coronavirus pandemic | ICMR updates strategy, widens COVID-19 testing criteria

Apart from the healthcare workers, all frontline workers "involved in containment and mitigation of COVID-19" should also be tested

May 18, 2020 / 16:36 IST
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Representative Image (Image: BMC)
Representative Image (Image: BMC)

The Indian Council of Medical Research (ICMR), in an update in guidelines for testing of COVID-19, said all symptomatic influenza-like illnesses among returnees and migrants within seven days should be tested for the virus.

All hospitalised patients who develop ILI symptoms should also be tested, apart from asymptomatic direct and high-risk contacts of a confirmed case, which shall be tested between day 5 and day 10 of coming into contact.

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Apart from healthcare workers, all frontline workers "involved in containment and mitigation of COVID-19" should also be tested, the ICMR has said.

Apart from these, ICMR has also said no emergency procedure, including deliveries, should be delayed for lack of testing. A sample can, however, be sent for testing if the patient develops any of the symptoms. All hospitalised patients who develop influenza-like symptoms shall also be tested for the virus, according to the guidelines.

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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