Covid-19

Covid-19 (Corona Virus Disease 2019, covid-19), referred to as “covid-19″, who named “coronavirus Disease 2019″ [1-2], refers to pneumonia caused by novel coronavirus infection 2019.Since December 2019, a number of cases of pneumonia with unknown causes with a history of exposure to the seafood market in south China have been found in some hospitals in wuhan, hubei province, which have been confirmed as acute respiratory infectious diseases caused by novel coronavirus 2019

On 11 February 2020, the director-general of the world health organization (who), tan desai, announced in Geneva, Switzerland that the pneumonia infected by novel coronavirus was named “covid-19″ [7].On February 21, 2020, the national health commission issued a notice on the revision of the English name of covid-19, and decided to revise the English name of “covid-19″ to “covid-19″, which is consistent with the name of the world health organization, and the Chinese name remains unchanged.[8] on March 4, 2020, the national health commission released the covid-19 diagnosis and treatment plan (trial seventh edition).

On 11 March 2020 (local time), the director-general of the world health organization (who), mathias tandesay, announced that based on the assessment, who believes that the current outbreak of COVID 19 can be called a global pandemic (pandemic).[10]

The state council has decided to hold a National Day of mourning on April 4, 2020 to express the deep condolences of the Chinese people of all ethnic groups for the martyrs and compatriots who died in the fight against COVID 19.During this period, flags will fly at half-mast and public recreational activities will be suspended.Starting at 10:00 am on April 4, people across the country observed three minutes of silence, and car, train and ship horns and air raid sirens sounded.