Dr. Chalermchai reveals to stimulate needle 3 with Moderna, 29-33 times higher, can cope with Omicron, can cope with BA.2 less than BA.1
On April 29, 65, Dr. Chalermchai Boonyaleepun, “Doctor Chalermchai”, Vice-President of the Senate Public Health Commission posted a message via Facebook Chalermchai Boonyaleepun, stating that
Vaccination 3 with Moderna following 2 doses of AstraZeneca showed a 29-33-fold increase in immunity, with less resistance to BA.2 than BA.1.
The situation of the 4th wave of Covid in Thailand caused by the Omikron virus since January 2022 onwards. Changes were found in the main virus strains from Subspecies 1 (BA.1) in December 2021, subspecies 2 (BA.2) in January 2022 and is now almost entirely BA.2.
make it interesting that How much will the 3rd dose booster vaccination fight the Omicron virus? Especially with the BA.2 strain, which is the main strain at the moment. There are data on the effectiveness of vaccine studies in Chiang Mai. In the period from January to March 2022, it was found that
Two injections cannot prevent infection. but reduced mortality by 85%.
The three injections were effective in preventing infection by 34-68% and reducing death by 98%.
interesting is And how much is the level of immunity that is up from 3 injections of vaccination is more than 2? And what are the differences between the first and second subspecies?
Now there is an answer From the preliminary research study of the Faculty of Medicine, Chulalongkorn University which has been published in the world’s leading journals (Journal of Infectious Diseases)
The blood test was conducted on 30 volunteers aged over 18, with a mean age of 50, who received two doses of AstraZeneca and had never been infected with coronavirus. A third dose of Moderna vaccine was administered 5-7 months away from the second dose, following which blood was collected. To determine the level of immunity at 28 days following the third dose of vaccination, the level of immunity once morest BA.1 virus increased from 16.6 to 548 and once morest BA.2 strain increased from 11 to 324.
so it can be said that Moderna’s third dose, following AstraZeneca’s two-dose vaccine, was able to induce a 29-33-fold increase in immunity once morest Omicron virus, which was sufficient to counteract Omicron virus. Effectiveness once morest the second viral subspecies (BA.2), the current main strain. 1.7 times less than the first subspecies
therefore it is necessary must follow up on further studies that How long will the level of immunity for the 3rd vaccination last? which has preliminary information from some countries that it can stay for regarding 3-6 months
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