How Dangerous Is Omicron Strain BA.5

The BA.4/BA.5 subspecies of COVID-19 is an up-and-coming Omicron COVID-19 mutant. At present, there is a sharp increase in cases of COVID-19. Global epidemics have been observed in Africa and Europe.

The World Health Organization (WHO) has declared BA.4/BA.5 a precautionary subspecies (VOC) and is expected to become the main strain of the global epidemic.The reason for the surveillance of the BA.4/BA.5 strain is that the virus has a good ability to divide, increasing in number of lung cells, which can cause pneumonia in infected people, unlike the BA.1 / BA.2 strain, where the infection has a good ability to divide in the cells of the upper respiratory mucosa. The BA.4/BA.5 subspecies also have the ability to evade immunity. Resistance to human antibodies causes re-infections, even if they have been infected or vaccinated.

According to China's local disease control authorities, In the past few days, there have been another outbreak in many parts of Xi'an and Beijing. The virus found is the Omicron BA.5.2 subspecies. Researchers say BA.5.2 is a sub-pedigree of BA.5, which already exists in the U.S., and seems to avoid antibody responses from both people who have been infected with COVID-19 before and those who have already been fully vaccinated and stimulated.

★The highlights of this Omicron BA.4 / BA.5 COVID-19 strain are:

1. Dividing the number of, increases well in lung cells, may increase the risk of pneumonia.

2. Spread easier and faster than ever before.

3. Evade immunity, people who have already been infected or vaccinated can re-infect (vaccines are less effective).

The trend of people infected with the BA.4/BA.5 subspecies worldwide continues to increase. The severity of this species is not yet conclusive, but given its rapid epidemic properties and the ability to connect cell walls from multiple cells to one cell (Multinucleated Syncytial Pneumocytes), it may cause more serious symptoms than the original Omicron strain. Which is something we need to keep an eye on.

However, vaccination, including receiving the stimulant needle vaccine, "is still necessary" to increase the body's immunity to fight the infection. Self-defense can also help prevent the risk of infection. Wear a face mask. When traveling to crowded or confined places, wash your hands frequently after touching items or public contact points or wearing gloves to help reduce the risk of direct exposure to germs. For those exposed to high risk or with sepsis, it is recommended to take an ATKmanually, preferably at a standard ATK with sensitivity and specificity values of at least 90%.

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