HomeNewsTrendsSportsNovak Djokovic tells court he was cleared to enter Australia after COVID-19
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Novak Djokovic tells court he was cleared to enter Australia after COVID-19

Djokovic, a vocal opponent of vaccine mandates hoping to win his 21st Grand Slam at the Australian Open, has been holed up since Thursday in a modest Melbourne hotel after his visa was cancelled due to problems with the exemption.

January 08, 2022 / 17:08 IST
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File image of Novak Djokovic (AP Photo/Thibault Camus)
File image of Novak Djokovic (AP Photo/Thibault Camus)

Tennis world number one Novak Djokovic mounted his legal challenge on Saturday to being refused entry to Australia, saying he had immigration clearance to enter the country after contracting COVID-19 last month.

On his third day in immigration detention in Melbourne, the Serbian superstar's court filing confirms widespread speculation he had caught the coronavirus. It escalates a furore over Australia's handling of a medical exemption from the country's vaccination rules that has rocked world tennis.

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Djokovic, a vocal opponent of vaccine mandates hoping to win his 21st Grand Slam at the Australian Open, has been holed up since Thursday in a modest Melbourne hotel after his visa was cancelled due to problems with the exemption.

The drama has become a diplomatic issue, as Serbia says Australia is treating Djokovic as a prisoner. It has also become a flashpoint for opponents of vaccine mandates around the world.

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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