Medical Genome Center Ramathibodi Hospital resolves 4 questions about concerns about COVID-19 infection Omicron species Chance of recurrence within 1 month, mostly unvaccinated children. But vaccination can help prevent re-infection.
Today (30 March) Facebook Center for Medical Genomics of the Center for Medical Genomics Ramathibodi Hospital Mahidol University said whether re-infection of the same “Omicron” strain within a month would be a concern or not? Why? “Covid-19” more
Question 1: Repeated coronavirus infection 2019 within 1 month and caught during this period. (February-March 2022) Are you worried? Why?
The answer is “worrying” because the epidemic during this period in Thailand and the world is a transition period from omikron subspecies BA.1 to BA.2. The WHO still classifies BA.1 and BA.2 is just a subspecies of Omikron. and give advice on prevention, care and treatment of BA.1 and BA.2 that are not different
Q2: Has a person infected with Omikron BA.1 been found and re-infected within the next 20-60 days? (reinfection) how much?
The answer is: A study of re-infections in the Danish population between November 22, 2021 and February 11, 2022, out of 1,848,466 infected people, was found to be re-infected with whole genome transcription. There were 187 cases of BA.2 infection, and only 47 of the genetic transcripts showed pre-infection with BA.1 and followed by re-infection with BA.2 between 20-60 days.
It was concluded that out of the 1.8 million infected people, 47 were infected with BA.1 before, and then 47 were re-infected with BA.2, and 1,848,419 were not infected. Most of the infected children were unvaccinated children. It is approximately the ratio of “1 in 40,000” of people who have been infected with BA.1 and have been infected with BA.2 again.
Question 3: Why does WHO still classify BA.1 and BA.2 as the only subspecies in the main omikron? and give advice on prevention, care and treatment of BA.1 and BA.2 that are not different despite having found a re-infected
The answer is because data obtained by WHO from around the world concluded that re-infection from “BA.1 and then re-infected with BA.2” is possible, but not very often. (Danish population, 1 in 40,000), coupled with re-infected BA.2, no symptoms are so severe that hospitalization is required. or died This means that the immunity obtained from the natural “BA.1” infection is still able to protect against infection. prevent serious illness and preventing death from BA.2 well, although not 100% This means that vaccination will help prevent re-infection.
Q4: Has the BA.2 case been found for the first time and then came back with BA.1, or those strains that had previously been epidemic such as Delta?
The answer is: According to a study of re-infections in the Danish population between November 22, 2021, and February 11, 2022, out of 1.8 million cases, the first BA.2 infection has yet to be “found”. re-infected with BA.1 or those strains that had previously been re-infected It can be concluded that natural immunity against BA.2 infection is likely to protect against BA.1 infection and pre-existing strains.
To read the original post, click here.
