The Tokyo Olympics organisers on Thursday announced 24 new COVID-19 cases, including three athletes, the highest one-day figures so far.
The fresh additions took the total number of Games-related cases to 193.
Out of the 24, six are Games-concerned personnel and 15 are contractors, besides the three athletes.
The highest-ever Olympics-related cases came a day after both Japan and Tokyo''s COVID-19 infection numbers hit all-time highs of 9,583 and 3,177 respectively.
On Wednesday, 16 Olympics-related cases were reported but none were athletes and none were staying in the Games Village.
Frequently Asked Questions
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.
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.
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.
The total number of cases in the Games village currently stands at 23.The organisers had said 38,484 people from abroad had entered Japan for the Games till Monday.