Omicron re-judgment: Has the toxicity weakened?

Challenge Omicron! At 24:00 on the 8th, 2 new local cases in Tianjin were confirmed to be infected with the Omicron variant

As Omicron has become the main epidemic strain in some countries, the pressure of "foreign defense import" in China continues to increase

Is the virus less virulent? More research is still needed to prove

A number of studies from different parts of the world have shown that the Omicron variant has the characteristics of fast transmission and strong concealment, but the symptoms of pneumonia caused by it are relatively mild

A joint study by scientists from Japan and the United States has shown that compared with previous strains, hamsters and mice infected with Omicron have less lung damage and a lower chance of death

Scientists in Hong Kong, China, studied lung tissue samples from patients with new coronary pneumonia and found that Omicron "grows" slower in these samples than other strains

Abdi Mahmood, the World Health Organization's new crown epidemic response official, said on the 4th that more and more studies have shown that the Omicron strain causes upper respiratory tract infections, which is different from other strains that cause severe pneumonia

Although existing data show that the symptoms of Omicron infection cases are generally mild, considering factors such as large-scale vaccination of vaccines and the large population of young people in some infected areas, it is not yet fully concluded that the virus has weakened

The number of new confirmed cases of the new crown in the United States exceeded 1 million on the 3rd, setting a new record for the number of new confirmed cases in a single day

WHO Director-General Tedros Adhanom Ghebreyesus publicly stated on the 6th that although Omicron has a lower risk of severe illness compared with Delta, this does not mean that it should be classified as "mild"

Zhang Wenhong, director of the National Medical Center for Infectious Diseases and director of the Department of Infectious Diseases of Huashan Hospital Affiliated to Fudan University, said to the outside world that the Omikron variant currently shows different characteristics in different countries, and he believes that Omikron is a "big flu".

How effective is the vaccine? New research suggests at least severe illness can be avoided

According to data released by the World Health Organization on the 6th, 90% of patients with severe new crown cases around the world have not been vaccinated against the new crown

Experts from the Chinese Center for Disease Control and Prevention who were interviewed introduced that Omicron carries a large number of spike protein mutations, which may lead to its enhanced ability to evade vaccine immunity

The above-mentioned experts said that studies have shown that after the booster vaccination of the new crown inactivated vaccine, the titer of the antibody rises rapidly and remains at a high level, which is helpful for better prevention of mutant strains

Zhang Wenhong believes that the reason why some countries "break through" this wave of epidemics and control the fatality rate at a low level is mainly due to the high vaccination rate of the new crown

What is the future trend of the epidemic? Adhere to "foreign defense input, internal defense rebound"

Experts from the China Center for Disease Control and Prevention organized by the National Health and Medical Commission concluded that China's "foreign defense import, internal defense rebound" prevention and control strategy is still effective for Omicron

When dealing with imported deltas, many provinces in China effectively controlled the epidemic within an incubation period or so

Experts from the Chinese Center for Disease Control and Prevention said that wearing a mask is still an effective way to block the spread of the virus, and it is also applicable to Omicron
.
In addition, frequent handwashing, indoor ventilation, and personal health monitoring are also required
.

Chinese medicine is also active
.
On the 9th, the First Affiliated Hospital of Tianjin University of Traditional Chinese Medicine distributed more than 7,000 bags of meticulously decocted preventive decoction to front-line staff and close isolation personnel as soon as possible
.

When Omicron came, Academician Zhang Boli and other relevant experts connected with the local children's case diagnosis and treatment team and imported cases in Europe, America, and Africa, and found that compared with the previous patients, the initial stage of the new coronary pneumonia patients with the Omicron variant showed more obvious symptoms.
Symptoms of exogenous wind-cold, mid-term symptoms of lung heat, accompanied by deficiency of both qi and yin
.

Zhang Boli said that it is necessary to do a good job in the revision of the traditional Chinese medicine diagnosis and treatment plan and the rehabilitation plan, combine the seasonal factors and the physical characteristics of children, and give full play to the advantages of integrated traditional Chinese and Western medicine to give patients, especially children, the best medical care
.

"Adhering to the supremacy of people and life is the fundamental starting point and end point of all our prevention and control measures
.
" The relevant person in charge of the National Health and Health Commission emphasized that as long as we resolutely implement the general strategy of "foreign import, internal rebound" and "dynamic clearing" "The general policy is to implement various prevention and control measures in detail, and then we will be able to control the epidemic as soon as possible
.
(Dong Ruifeng, Xu Penghang)