Lots of confusion and controversy are there about the initial role of WHO.
Dec 31: China alerts WHO to several pneumonia cases. Total of 27 suspected cases.
Jan 23: Wuhan place under effective quarantine, air & rail suspended. 8 deaths reported & 17 died before 23rd Jan. Infected more than 600 people.
March 11: Infected more than 118000 people & died more than 4200 globally (114 countries). Outside China, more than 10,000 cases and died more than 600 only in Italy. WHO declares pandemic. Europe the center of panic at this time. China is almost free from corona fear.
Source: WHO & CNN