News 1+1丨The "Omi Keron" mutant strain spreads, how do we deal with it?

  The new coronavirus reproduces a new mutant strain "Omi Keron".

As of November 28, South Africa, Israel, Belgium, Italy, the United Kingdom, Austria, and Hong Kong, China, have monitored the input of this mutant strain.

The input of this mutant strain has not been found in other provinces and cities in my country.

Many countries have upgraded their anti-epidemic measures to block borders, restrict travel, and ban flights.

Is "Omi Keron" getting closer and closer to us?

How should we guard against it?

Is "Omi Keron" very close to us?

Xu Wenbo, Director of the Institute for Viral Disease Control and Prevention of the Chinese Center for Disease Control and Prevention:

"

Omi Keron

" mutant strains are spreading rapidly with global transportation. In fact, not only "

Omi Keron

", any strain can be passed as long as it is infected. The aircraft is quickly imported to other countries.

Whether the propagation speed of "Omi Keron" will increase is still unknown, and it needs to be observed and studied in the coming weeks.

But it is very close to us, because China and many countries have air flights. The "Omi Keron" strain is not only in Africa, but has been imported into other countries, and it may have a potential epidemic in some countries, so The opportunity to import into China is great.

How harmful is "Omi Keron"?

Xu Wenbo, Director of the Institute for Viral Disease Control and Prevention of the Chinese Center for Disease Control and Prevention:

The amino acid mutation sites of the spike protein on the "

Omi Keron

" include the "Delta" virus, and the "Alpha", "Beta" and "Gamma" viruses. Some important amino acid mutation sites, but the increase in mutation sites does not mean that its transmission power must be enhanced, nor does it mean that its immune escape must be stronger than that of the "Delta" virus. Aggregation mutations are not necessarily cumulative, and 1+1 is greater than 2 In that form, structural virology, cross-immunization and neutralization, and field epidemiology are needed to observe the protective effect of the vaccine.

In general, "Omi Keron" is still a new crown virus, and it will not undergo subversive changes.

Does "Omi Keron" affect my country's existing nucleic acid detection reagents?

Xu Wenbo, Director of the Institute of Viral Disease Control and Prevention of the Chinese Center for Disease Control and Prevention:

The mutations of "

Omi Keron

" are mainly concentrated on the neutralizing antigen spike protein. The mainstream nucleic acid detection reagents in China are designed for ORF/ab gene and N gene. Both genes seem to have not changed, so the sensitivity and specificity are not affected. The mainstream nucleic acid detection reagents in China can deal with the input of the "Omi Keron" mutant strain.

What impact does "Omi Keron" have on the vaccine?

Xu Wenbo, Director of the Institute of Viral Disease Control and Prevention of the Chinese Center for Disease Control and Prevention:

"

Omi Keron

" is still a new

coronavirus

. Although its amino acids are cumulatively mutated, the vaccine is still effective and can reduce the proportion of severe illness and death. It cannot completely break through immunity. Barrier, because in addition to antibody immunity, there is also T cell immunity, and our country has a variety of vaccine immunization technology routes on the market, including inactivated vaccines, protein vaccines, vector adenovirus vaccines, as well as booster injections, sequential immunization, and then China There is also the development of second-generation seedlings, which can deal with the "Omi Keron" strain.

What should scientists pay attention to when observing "Omi Keron"?

Xu Wenbo, Director of the Institute of Viral Disease Control and Prevention of the Chinese Center for Disease Control and Prevention:

As a scientist, we should pay attention to the following points: 1. Will the mutation of "

Omi Keron

" lead to increased transmission and whether it will exceed the "Delta" virus .

2. How strong is the immune escape ability of "Omi Keron".

3. How did "Omi Keron" come into being.

How does my country respond to the import of "Omi Keron"?

Xu Wenbo, Director of the Institute of Viral Disease Prevention and Control of the Chinese Center for Disease Control and Prevention:

China’s existing

COVID-19

prevention and control policies, "foreign import prevention" and "internal prevention rebound", conduct detailed epidemiological and genomic monitoring of all imported cases. It is possible to stop the spread of "Omi Keron".

In daily life, how does the public guard against "Omi Keron"?

Xu Wenbo, Director of the Institute of Viral Disease Control and Prevention of the Chinese Center for Disease Control and Prevention:

1. The general public should wear masks and maintain social distancing, especially health monitoring. If symptoms of new coronary pneumonia are suspected, they should monitor their body temperature in time and take the initiative to see a doctor.

2. Reduce unnecessary exits, especially to countries where the "Omi Keron" strain is suspected or has been prevalent or imported.

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