The new coronavirus reproduces a new mutant strain “Omicron”. As of November 28, South Africa, Israel, Belgium, Italy, il Regno Unito, Austria, and Hong Kong, Cina, have monitored the input of this mutant strain. The input of this mutant strain has not been found in other provinces and cities in our country. Many countries have upgraded their anti-epidemic measures to …

In December, pneumonia in COVID-19 is still raging all over the world, and new confirmed cases in many countries have reached a new high in recent days. According to the latest data, more than 68 million people have been diagnosed with infection and over 1.55 million people have died in the world. Although “there is still a long way to …