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A new strain of the new crown has emerged! “Sanyang” is here?latest research

A new strain of the new crown has emerged!  “Sanyang” is here?latest research

Recently, the number of cases of infection with the new coronavirus variant EG.5 has been on the rise in many places around the world. The World Health Organization listed EG.5 as a “mutant strain that needs attention”, and the “needing attention” new crown mutant strain EG.5 appeared. According to Reuters, the World Health Organization announced on the 9th local time that the new coronavirus mutant strain EG. .5 is listed as a “warning” variant.

According to reports, the World Health Organization stated on the 9th that the organization is tracking several new coronavirus variants, including the new coronavirus variant EG.5 that is currently circulating in the United States and the United Kingdom.

According to the report, Maria Van Kerkhove, the technical lead of the new crown virus at the WHO, said that the transmissibility of EG.5 has increased, but it is not more serious than other Omicron variants.

According to the report, the World Health Organization has divided the mutant strains into three categories: “under surveillance” mutant strains, “needing attention” mutant strains, and “needing attention” mutant strains by evaluating the transmission ability and mutation ability of virus mutant strains. .

WHO Director-General Tedros Adhanom Ghebreyesus pointed out: “The risk of more dangerous variants still exists, which may lead to a sudden increase in the number of cases and deaths.” #新冠三阳的人开始出现# is on the hot search.

Recently, some netizens said that they are “three yangs”, and the topic of “three yangs” was once on the hot search.

Since July, about 5% of patients with severe COVID-19 infection admitted to the Infectious Diseases Ward of Huashan Hospital are mainly concentrated in the first-positive, elderly, poorly controlled underlying diseases, and those who have not been vaccinated against the new crown. However, among the patients who actually went to the doctor, there were very few cases of repeated infection and “three yang” in a short period of time, and almost no “four yang”.

Wang Xinyu, deputy director of the Department of Infectious Diseases, Huashan Hospital Affiliated to Fudan University, said: It is now in a relatively stable or low ebb stage. It is true that we have also encountered cases of re-infection after three months in the short term, but most of these patients are relatively mild.

What is EG.5? Where does it spread?

EG.5 is the “descendant” of the new coronavirus Omicronya variant strain XBB.1.9.2, which was first discovered on February 17 this year.

The way the virus enters cells and tissues in the human body is also similar to that of XBB.1.5 and other Omicron variants. On social media, netizens have named the mutant strain “Eris” (Eris) according to the Greek alphabet, but this has not been officially recognized by the WHO.

Since the beginning of July, EG.5 has caused more and more cases of new crown infection, and the World Health Organization listed it as a variant strain “requiring monitoring” on July 19.

As of August 7, 7,354 EG.5 gene sequences from 51 countries have been uploaded to the “Global Initiative for Sharing All Influenza Data” (GISAID), including the United States, South Korea, Japan, Canada, Australia, Singapore, and the United Kingdom. , France, Portugal and Spain.

WHO mentioned EG.5 and its closely related subvariants, including EG.5.1, in its latest assessment. EG.5.1 now accounts for about one in seven COVID-19 cases detected in hospital testing, according to the UK’s Health Safety Agency. The U.S. Centers for Disease Control and Prevention estimates that EG.5 has been circulating in the U.S. since April and currently accounts for about 17% of new infections. According to the federal health agency, the number of hospitalizations due to the new crown has been increasing across the United States, with the number of hospitalizations increasing by 12.5% ​​in the latest week to 9,056.

Vaccines still prevent EG.5 infection

EG.5.1 has two important additional mutations, F456L and Q52H, that XBB.1.9.2 does not have, while EG.5 only has the F456L mutation. An additional minor change in EG.5.1, namely the Q52H mutation in the spike protein, gives it an advantage over EG.5 in terms of propagation.

The good news is that currently available treatments and vaccines are expected to still be effective against this variant, according to a CDC spokesperson.

British Reuters reported that Mandy Cohen, director of the US Centers for Disease Control and Prevention, said that the vaccine updated in September will provide protection against EG.5, and the new variant does not represent a major shift.

The HSA said that vaccination remains the best defense against future COVID-19 outbreaks, so it is still very important that people get all eligible vaccines as soon as possible.

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