2023-09-25 01:15:00
Monday, September 25, 2023, 8:15 a.m.
Solve the answer! ‘Doctor Yong’ reveals research results. ‘RSV’ children can become infected again. Some people get it every year. There are many problems in developing ‘vaccines’.
25 September 2023 Prof. Dr. Yong Phuworawan, Head of the Center of Specialization in Clinical Virology Department of Pediatrics Faculty of Medicine Chulalongkorn University Posting a message via Facebook, Yong Poovorawan stated that RSV can come and go again. Some children get it every year.
RSV is a disease that can happen again. Some children get it every year. It was found that the first time people had the most symptoms. Normally, more than 80% of people inherit immunity from their mothers, and this immunity disappears approximately 6 months after birth.
Children therefore have a higher chance of contracting RSV for the first time after 6 months of age. And as a young child, symptoms of bronchitis occur. Bronchiolitis So it’s quite obvious. and was the cause of having to stay in the hospital If symptoms are severe, oxygen must be given.
But in general Treatment will be palliative, wait for time and everything will get better. People who die from RSV in Thailand are very rare. Except in poor countries where children are malnourished. The body is not strong.
Once this occurs, the resulting immunity is unable to protect against infection the following year. There will be a chance of it happening again.
From our studies at the center Among the 81 people who were re-infected, 72 were re-infected one more time, 9 were re-infected two more times, for a total of 3 infections, and most of them occurred within the age of 5 years. However, from immune studies, some children When they reach 5 years of age, they become infected every year. But it’s just not diagnosed.
We studied 81 infected and diagnosed children. We looked into the strains of RSV. We know that there are two main strains of RSV, A and B, and subtypes A and B. a lot In-depth study of genetics, we found that this year we were infected with RSV A. Next year we can be infected with strain A again, or strain B, as shown in the picture. On the other hand, the main strain does not provide cross-breed protection. at all And it doesn’t help protect the same species. Including the sub-strains we found, such as the ON1 strain, once infected they can still be infected again the following year.
For this reason, RSV has been a difficult vaccine to develop, especially in children, although vaccines have been introduced for use in the elderly or pregnant women. But I believe that protection will be short-term…………-005
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