Covid-19 has infected more than 242M people and killed over 4.9M globally. Here are the virus-related developments for October 20:
Japan's capital remains under a fourth state of emergency after Olympics began last Friday despite widespread public opposition and concern that they could further worsen the outbreak.
Organisers insist games can go ahead with “proper measures” but a prominent public health expert warns “bubble system is kind of broken” and infections can spread to the local community.
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