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COVID-19 vaccine update | Europe's medicines regulator clears way for use of Pfizer in EU

European Union countries including Germany, France, Austria and Italy have said they plan to start vaccinations from December 27 as Europe tries to catch up with the United States and Britain, where inoculations began earlier this month.

December 21, 2020 / 22:33 IST
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LANSING, MI - DECEMBER 13: Shipments of the Pfizer And BioNTech COVID-19 vaccine are loaded into a UPS plane at the Capital Region International Airport on December 13, 2020 in Lansing, Michigan. The first doses of the coronavirus (COVID-19) vaccine will be distributed to all 50 states.   Rey Del Rio/Getty Images/AFP
LANSING, MI - DECEMBER 13: Shipments of the Pfizer And BioNTech COVID-19 vaccine are loaded into a UPS plane at the Capital Region International Airport on December 13, 2020 in Lansing, Michigan. The first doses of the coronavirus (COVID-19) vaccine will be distributed to all 50 states. Rey Del Rio/Getty Images/AFP

Europe's medicines regulator on Monday approved the use of the COVID-19 vaccine developed by U.S. company Pfizer and its German partner BioNTech, putting the EU on course to start inoculations just after Christmas.

European Union countries including Germany, France, Austria and Italy have said they plan to start vaccinations from Dec. 27 as Europe tries to catch up with the United States and Britain, where inoculations began earlier this month.

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India reviewing Pfizer’s emergency use application, detailed plans in place for vaccination programme: Health Minister Harsh Vardhan

Having gained the green light from the European Medicines Agency (EMA), the final step is approval by the European Commission, expected later on Monday.

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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