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TOKYO, JAPAN - JULY 18, 2021: A step-by-step guide for COVID-19 PCR self-testing is pictured at the Main Press Center of the 2020 Summer Olympics. The first COVID-19 case was registered in the Olympic Village on July 17. Tokyo was to host the 2020 Summer Olympic Games on July 24-August 9, 2020. The games were postponed for a year due to the COVID-19 pandemic, and are scheduled to take place on July 23-August 8, 2021. Valery Sharifulin/TASS (KEYSTONE/TASS/Valery Sharifulin)