HomeNewsIndiaAs Delta variant cases rise, WHO asks fully vaccinated to keep masks on

As Delta variant cases rise, WHO asks fully vaccinated to keep masks on

Mariangela Simao, WHO's assistant director-general for access to medicines and health products, said people cannot feel safe just because they had the two doses and that they still need to protect themselves.

June 26, 2021 / 13:02 IST
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Representative Image (AFP)
Representative Image (AFP)

The World Health Organization (WHO) has said people who are fully vaccinated will have to continue wearing masks, follow social distancing and other safety measures to contain the spread of the more deadly and contagious Delta variant of the coronavirus, which is spreading rapidly across the globe.

Mariangela Simao, WHO's assistant director-general for access to medicines and health products, said people cannot feel safe just because they had the two doses and that they still need to protect themselves.

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“Vaccine alone won’t stop community transmission. People need to continue to use masks consistently, be in ventilated spaces, hand hygiene ... the physical distance, avoid crowding,” Simao said during a news briefing from the agency’s Geneva headquarters, according to CNBC.

"This still continues to be extremely important, even if you’re vaccinated when you have a community transmission ongoing," she added.

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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