阅读单选
Over the last more than one year, the coronavirus pandemic(冠状病毒疫情) has affected different countries and regions in different ways. Here, we'll take a look at a few of the most important events that have happened.
Italy shuts down
On March 10,2020, the Italian government decided to put the whole country onlockdownafter the number of cases(病例) in the country started increasing quickly. People were suggested not leaving their home. The first case was detected(检测到) as early as January 31. In the following weeks, the number of cases reached over 10000 by the time of the lockdown. The lockdown affected 16 million people across the country. Italy was one of the first of many countries that carried out lockdowns to prevent the spread of the virus.
WHO declares pandemic
On March 11, 2020, World Health Organization(WHO世卫组织) officially characterized(描述) COVID-19 as a pandemic. This was because of a growing number of cases around the world. By this time, there were more than 20000 cases in Europe, including 1000 deaths, as well as 1000 cases in the US.
Summer Olympics delayed
On March 24, 2020, President of the International Olympic Committee(IOC) Thomas Bach announced the 2020 Summer Olympic Games, which were planned to be held in Tokyo would be delayed until the following year in the interest of protecting public safety.
US hits over 1 million cases
On April 28, 2020, the US official recorded over one million COVID-19 cases nationwide. This came just four days after it was announced that the virus had resulted in over 5000 deaths across the country. The virus spread rapidly across the country as the first case had been recorded three months earlier.