“Intense and short-lived” outbreak——Africa to suppress Omicron in 5 months. The African country of South Africa was the first country in the world to discover and report the Omicron strain. In November 2021, South Africa first reported the Omicron variant to the World Health Organization (WHO).

Alat antigen: update on New Coronavirus pneumonia. From 0:00 to 24:00 on April 19, 31 provinces (autonomous regions and municipalities directly under the central government) and Xinjiang production and Construction Corps reported 2761 new confirmed cases.

Swab test antigen: Thailand reports first case of Omicron XE strain infection. Americas: Brazil relaxes entry and epidemic prevention policiesAccording to data from the Brazilian Ministry of Health, as of the evening of April 3 local time.