The new measure is set to start tomorrow and will continue throughout January. It follows a record daily increase in new coronavirus cases - including at least two of a new, faster-spreading strain of the virus. As Japan tightens its border, citizens and foreign residents will be required to quarantine for two weeks upon returning to the country and must show proof of a negative COVID-19 test within 72 hours of their departure for Japan. Digital Transformation Minister Takuya Hirai has also spoken of a tracking system for overseas travelers being developed to monitor virus spread, with the system expected to be in place before the Olympics and Paralympics are held. The Tokyo 2020 Olympics are currently scheduled to take place from July 23 to August 8 in 2021, having been postponed by a year due to the COVID-19 pandemic. The Paralympics are due to take place from August 24 to September 5.