HomeNewscoronavirusCOVID-19 update | South Korea to deploy Pfizer COVID-19 pills as Omicron wave looms

COVID-19 update | South Korea to deploy Pfizer COVID-19 pills as Omicron wave looms

Called Paxlovid, some 630,000 of the pills, enough for 21,000 people, arrived on Thursday to be distributed to 280 pharmacies and 90 residential treatment centres

January 13, 2022 / 22:17 IST
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Source: Reuters
Source: Reuters

South Korea will begin treating coronavirus patients with Pfizer's antiviral pills on Friday, the first Asian country to do so, as concern mounts over the spread of the highly contagious Omicron variant.

Called Paxlovid, some 630,000 of the pills, enough for 21,000 people, arrived on Thursday to be distributed to 280 pharmacies and 90 residential treatment centres, the Korea Disease Control and Prevention Agency (KDCA) said.

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ALSO READ: Omicron virus: CDC recommends Pfizer booster shots for children aged 12 and above

"In light of Omicron's much higher infectiousness, the medication should play a meaningful role in restraining the number of patients who would develop critical symptoms even if the strain is relatively less severe," Kim Ki-nam, a KDCA official, told a briefing.

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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