If they don't require participants to be vaccinated, they should cancel the Olympic Games. A friend and neighbor died yesterday from COVID. He and his wife relied on information on the internet and decided they would be OK without the vaccine. Both were infected but he died after spending almost 4 weeks in the hospital; most of the time in ICU. These new variants are more communicable and more deadly, especially in older children and young adults.I would hope that the Tokyo Olympics would require all of the athletes to be vacinated.