On This Day - What happened 31 January 2020 AD

On January 31, the Senate voted against calling any witnesses, making this the first impeachment trial in U.S. history without witness testimony.

On 31 January 2020, Italy closed all passenger air traffic between Italy and China and Taiwan. The Italian Civil Aviation Authority NOTAM says that effective 31 January, all passenger flights from China, including the special administrative regions of Hong Kong and Macau, and Taiwan are suspended until further notice, on request of the Italian health authorities. Aircraft that were flying to Italy when the NOTAM was published, was cleared to land. On the same day, the WHO declared that the number of infected cases is 9826 and 213 confirmed death case

On 31 January 2020, an article in The Lancet estimated that 75,815 individuals (95% CrI 37,304–130,330) have been infected in Wuhan as of 25 January, with an estimated doubling time of 6.4 days in the period of study.