Japanese newspaper Nikkei, citing organisers, said all 70,000 volunteers working at Games venues will be able to secure vaccines.

Nikkei said several volunteers who will have contact with athletes have already been vaccinated.

This is now expected to expand to other volunteers from Wednesday (June 30).

Workers involved in the delayed Games started receiving vaccines against COVID-19 earlier this month as part of the Tokyo Metropolitan Government's aim to inoculate around 2,500 workers per day until the end of August.

The Japanese Government had struck a deal with Pfizer to provide 40,000 people who will be working at the Games with the pharmaceutical company's COVID-19 vaccine.

Staff, volunteers, accredited media and health workers are among those who are eligible to receive the vaccine.

The Japanese Government’s latest figures published yesterday revealed that 37.2 million doses have been administered to date.

A total of 26.8 million have been given to the general population, including elderly people in the priority group.

Over 10.3 million medical staff have received doses.

Japan is now regularly administering over one million doses per day.

Around 11.7 million people are believed to have received both doses of the COVID-19 vaccine to date, representing around 9.2 per cent of the population.

The International Olympic Committee and Tokyo 2020 organisers will implement a series of strict rules during the Games, which they claim will ensure the Olympics and Paralympics are safe and secure.

This includes a reduction in the number of accredited officials and banning visits to tourist areas.

The IOC has also claimed more than 80 per cent of people inside the Athletes' Village will either have been vaccinated or be in the process of inoculation in time for the Games.

Japanese Emperor Naruhito earlier this week expressed concerns over the potential for the Games to spread COVID-19

Prime Minister Yoshihide Suga has reportedly rejected the remark, which was made by the head of Japan's Imperial Household Agency, Yasuhiko Nishimura.

According to Nikkei, Suga suggested the opinion expressed belonged to Nishimura, rather than Emperor Naruhito.

Public opinion remains split in Japan over hosting the Games during the COVID-19 pandemic.

The Yomiuri Shimbun newspaper found 50 per cent of respondents to a poll conducted earlier this week are in favour of the Games taking place, with 48 per cent wanting the event to be cancelled.

The poll represented a boost in public support for Tokyo 2020 as opposition towards the Games has been high in recent months.

The Tokyo 2020 Olympics are scheduled to take place from July 23 to August 8, followed by the Paralympics from August 24 to September 5.