HomeNewsIndiaGovt mulling to include sudden loss of taste, smell as criteria for COVID-19 test

Govt mulling to include sudden loss of taste, smell as criteria for COVID-19 test

According to an expert, even though the symptom is not specific to COVID-19 as one may suffer from loss of smell and taste when they have flu or influenza, it could be one of the early signs of the onset of the disease and prompt detection may help in early treatment.

June 12, 2020 / 17:13 IST

The government is mulling to include sudden loss of taste and smell as a criteria for COVID-19 testing, sources said on Friday as India witnessed a surge in coronavirus instances with total caseload racing towards the three lakh mark. The issue was discussed in a meeting of the National Task Force on COVID-19 held last Sunday, but no consensus on the matter has been reached yet.

"At the meeting, some members suggested including loss of taste and smell in the eligibility criteria for COVID-19 testing stating that several patients have been reporting symptoms like these," a source in the health ministry said.

According to an expert, even though the symptom is not specific to COVID-19 as one may suffer from loss of smell and taste when they have flu or influenza, it could be one of the early signs of the onset of the disease and prompt detection may help in early treatment.

Coronavirus India News LIVE Updates

The US' national public health institute the Centres for Disease Control and Prevention (CDC) had in early May incorporated "a new loss of taste or smell" in the list of COVID-19 symptoms.

COVID-19 Vaccine

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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.

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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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According to the Indian Council of Medical Research's revised testing strategy for COVID-19 issued on May 18, all returnees and migrants with symptoms of influenza-like illness (ILI) are to be tested within seven days of the onset of the trails.

All hospitalised patients who develop ILI symptoms and frontline workers involved in containment and mitigation of COVID-19 having such symptoms will also be tested for COVID-19 through the RT-PCR test, it said, adding asymptomatic direct and high-risk contacts of a confirmed case has to be tested once between day five and 10 of coming in contact.

Symptomatic ILI patients living in coronavirus hotspots or containment zones, all patients of severe acute respiratory infection (SARI), symptomatic healthcare workers also are eligible for testing as per the guidelines.

Follow our full coverage of the coronavirus pandemic here.

PTI
first published: Jun 12, 2020 05:07 pm

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