Wuhan, the city in Central China that was the epicenter of the coronavirus disease 2019 (Covid-19), reported zero confirmed coronavirus domestic infection cases on March 17. It kept the zero status from that day onward until press time on March 20. The city and the country’s experience are markedly different from the rest of the world — China was the sole epidemic center in January and February. Then many countries started to experience an upsurge of infection at the end of February. By March 20, Covid-19 hit more than 150 countries and territories all over the world with more than 275,000 reported cases and 11,000 dead.
