How to write Omicron's letter?

How to write Omicron letters, Omicron (English name: Omicron), 20 19 novel coronavirus variant. It was first detected in South Africa on 202 1, 1654381October 9. So, how to write an Omicron letter?

Omicron letter 1 How to write Omicron is the Greek letter O, the full name is the Greek letter Omicron (Omicron) mutant, which was defined and named by WHO on1October 26th, and was defined as the fifth variant (VOC) of concern.

1. Omicron English name: Omicron (B.1.1.529 mutant).

2. Chinese name of Omicron: Omicron.

Why Omicron?

The reason why Omicron is named like this is to decontaminate the name, simplify the name of the variant, facilitate the communication between the public and reduce all kinds of confusion. Previously, mutants α, β, γ and δ were named after the stigma.

Compared with Delta strain in Omicron, Omicron strain has more spike protein mutations, and these mutations are diverse, and most of them are located in the interaction region of human cells.

What does Omicron mean?

Omicron is a mutant strain of COVID-19 B. 1. 1.529, which has important amino acid mutation sites of VOC variants α (α), β (β), γ (γ) and δ (δ) spike proteins, including those that enhance cell receptor affinity and virus replication ability.

What virus is Omicron?

Omicron, like Delta virus, still belongs to COVID-19, but its amino acids have accumulated mutations. At the same time, there are triple mutations of "K4 17N, E484A, N50 1Y". According to the research, if there are K4 17N, E484A or N50 1Y mutations in COVID-19 s protein, it means that the immune escape ability is enhanced. However, the ability of Omicron to escape from the existing vaccine needs further monitoring and research.

How to write Omicron Letter 2 Patients infected with Omicron usually have mild or no obvious symptoms. The harm of Omicron strain infection is mainly related to its spike protein, which is harmful to some extent and needs targeted treatment according to the specific situation. Its symptoms and hazards are as follows:

1, symptoms

The main symptoms of Omicron infection are muscle ache and fatigue, accompanied by slight cough, or no obvious symptoms. So far, no symptoms of loss of taste and smell have been found in infected people. If the patient has muscle aches, fatigue and a slight cough, he should go to the hospital in time to see if he is infected with Omicron. If you are diagnosed with Omicron, you should actively treat it, wear a mask, pay attention to personal hygiene, keep a social distance, do a good job of disinfection, and avoid going to crowded and unventilated places to avoid serious consequences.

2. Damage

Omicron is a mutant of COVID-19 B. 1. 1.529, which has important amino acid mutation sites of VOC mutants α, β, γ and δ spike proteins. There are 32 mutations in the spike protein of Omicron, including 10 mutation in the receptor binding domain, including mutation sites that enhance cell receptor affinity and virus replication ability. Spike proteins can help viruses enter human cells. Increasing mutation sites may enhance the transmission of the vaccine to some extent, but it does not mean that it has strong immune escape. Aggregative mutation is not necessarily accumulation, and the form of 1+ 1 is greater than 2. It is necessary to observe the protective effect of the vaccine through structural virology, cross-immune neutralization and field epidemiology. Generally speaking, Omicron is a mutant of COVID-19. Although its amino acid has accumulated mutation, the vaccine is still effective, which can reduce the proportion of severe illness and death, but it is impossible to completely break through the immune barrier, because there is T cell immunity besides antibody immunity. The measures to deal with Omicron strain mainly include inactivated vaccine, protein vaccine, vector adenovirus vaccine, enhanced immunization, sequential immunization and the development of the second generation vaccine.

How to write Omicron letter 3 is mainly spread through respiratory droplets and close contact, but this mode of transmission still needs to be clarified through the feces of digestive tract. In addition, if the concentration of coronavirus contained in the environment is high in a closed environment, it can be spread by air aerosol. There is no other route of transmission for the time being.

Omicron (English name: Omicron, serial number: B. 1. 1.529), 20 19 novel coronavirus variety. It was first detected in South Africa on 202 1, 1654381October 9.

At present, there is no systematic research data on the transmission ability, pathogenicity and immune escape ability of Omicron mutants in the world. However, Omicron mutants have important amino acid mutation sites of spike proteins of the first four VOC mutants, including those that enhance the affinity of β receptor and virus replication. Epidemiological and laboratory monitoring data show that the number of cases infected with Omicron mutant in South Africa has increased sharply, and Delta mutant has been partially replaced, and its transmission power needs further monitoring and research.

What should the public pay attention to in their daily life and work in the face of the emerging COVID-19 Omicron mutant?

(1) Wearing a mask is still an effective way to block the spread of the virus, which is also applicable to Omicron mutants. Even if you have completed the whole vaccination and intensive injection, you need to wear a mask in indoor public places, public transportation and other places. In addition, wash your hands frequently and do a good job of indoor ventilation.

(2) Do a good job in personal health monitoring. When COVID-19 symptoms appear, such as fever, cough, shortness of breath and other symptoms, timely monitor body temperature and take the initiative to see a doctor.

(3) Reduce unnecessary discrepancy. In just a few days, many countries and regions have reported variants imported from Omicron. China is also facing the risk of importing this mutant, and the global understanding of this mutant is still limited. Therefore, travel to high-risk areas should be reduced as much as possible, and personal protection should be strengthened during travel to reduce the chance of infection with Omicron variants.