How many strains are there in China?

COVID-19 mutant, 202 1 May, 2002, WHO began to name COVID-19 strain with Greek letters, and named it 1 1 mutant, including α, β and δ. On May 29th, 20021year, Vietnamese Minister of Health Ruan Qinglong announced that a new COVID-19 mutant strain had been discovered in Vietnam, which was a mixture of previously discovered mutant strains in Britain and India. Ruan Qinglong said at the national video conference on epidemic prevention and control in COVID-19 that this mutant strain mixture is "very dangerous" and more contagious.

August 3 1, 202 1 news. Earlier, the South African National Institute of Infectious Diseases said that it was paying close attention to the new mutant named "C. 1.2" in COVID-19. On August 3rd 1, 20265438, the World Health Organization reported that it was monitoring a COVID-19 mutant strain B. 1.62 1, which was first discovered in August and June of 20021. After that, Delta mutant was found in 39 African countries, Alpha mutant was found in 45 countries, and Beta mutant was found in 40 countries.

Naming of virus strains

The British Sky News website 202 1 August 8th reported that in May of 20021,WHO began to name COVID-19 strains with Greek letters. So far, it has named 1 1 mutant strains, including α, β and δ. Maria Van Kerkhoff, technical director of WHO in COVID-19, warned that there may be new mutant strains that vaccines cannot resist, and these strains are "real threats".

In order to prevent the 24 Greek letters from being used up, WHO is studying a new naming method. Van Kehoff said that the naming of astronomical constellations, such as Orion, Leo, Gemini and Aries, is currently under consideration. She added that WHO is still studying the naming of constellations to avoid controversy. Van Kerhoff previously warned that naming after the place where the mutant strain was first discovered is likely to make this country or region suffer "defamation".