TOKYO (Reuters) - Vaccines against a coronavirus that has killed 170 people in China probably won't be ready by the start of the Tokyo Summer Olympics, a professor who looked at health risks ahead of the Games said, adding that he hoped that there was enough time to build defences.
Koji Wada, professor of public health at the International University of Health and Welfare in Tokyo, co-authored a paper in 2018 that looked at health risks from the influx of visitors to the 2020 Games in July.
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