HomeNewsWorldOlympic organisers announce 3 more Games-related COVID cases, none athlete

Olympic organisers announce 3 more Games-related COVID cases, none athlete

The Games concerned personnel is based in Chiba. The third case is of a journalist who has travelled for the event and was under a 14-day quarantine in Tokyo. The contractor is based in Saitama.

July 19, 2021 / 10:02 IST
Story continues below Advertisement

One Olympics concerned personnel and a contractor were among three COVID-19 cases detected on Monday by the Games organisers, a day after three sportspersons, two of them staying at the athletes Village, tested positive for the virus.

The Games concerned personnel is based in Chiba. The third case is of a journalist who has travelled for the event and was under a 14-day quarantine in Tokyo. The contractor is based in Saitama.

Story continues below Advertisement

The three cases were revealed by the organising committee in its daily update of COVID-19 list. The total number of Games-related cases now stands at 58.

On Sunday, the first instance of athletes staying at the village catching the infection came to light. The two were South African football players.

COVID-19 Vaccine
Frequently Asked Questions

View more

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.
View more
+ Show