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HomeNewscoronavirusHydroxychloroquine should be avoided in severe cases: Health Ministry

Hydroxychloroquine should be avoided in severe cases: Health Ministry

Hydroxychloroquine has demonstrated in-vitro activity against SARS-CoV2 and was shown to be clinically beneficial in several small single-centre studies though with significant limitations, it stated.

June 13, 2020 / 21:21 IST
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The Union Health Ministry on June 13 has recommended use of anti-viral drug remdesivir under emergency use authorization, off-label application of immunomodulator tocilizumab and convalescent plasma therapy for treating COVID-19 patients in moderate stage of criticality.

Backtracking from its earlier stance, the ministry in its revised 'Clinical Management Protocols for COVID-19', said anti-malarial drug hydroxychloroquine (HCQ) should be used in the early course of the disease to achieve any meaningful effect and should be avoided in severe cases.

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In the new set of protocols, the ministry has removed its earlier recommendation of using hydroxychloroquine in combination with azithromycin in severe cases and requiring ICU management.

Hydroxychloroquine has demonstrated in-vitro activity against SARS-CoV2 and was shown to be clinically beneficial in several small single-centre studies though with significant limitations, it stated.

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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