However, people who have been infectedCOVID-19 before and receivedIntensive VaccinePreventing COVID-19 Omicron strains, 1 dose will have better immunity to BQ.1.1. The natural immunity from infection with BQ.1.1. is 4 times higher than that of the Omikron group compared to people who have never been infected before.covid mutantafter
The mutated virus BQ.1.1 become a virus that spreads withinUnited States and accounted for a 32% infection rate among all viruses.Omicron BA.5 In other countries, the infection rate is 14% of new infections.
In addition, scientists found booster vaccine Resistance to the mutant COVID virus XBB.1 have the least Because the vaccine produced eight times less immunity against it than against Omikron.
However, people who have been infected with COVID Those who received three booster doses of the vaccine will have better immunity against the XBB.1 mutant virus than those who have never been infected.
sideAnthony Fauci Chief Medical Adviser to the White House said in November that The booster vaccine against the BQ.1.1 COVID-19 virus only slightly. And the anti-virus XBB efficiency has been reduced several times.
The study results fromUS Centers for Disease Control and Prevention (CDCLast week, 42% of U.S. adults had been infected with COVID-19. The data was collected from adult blood samples during August. 2021 until May 2022
The results of the University of Texas research. Study from blood samples of people who have never been infected with COVID before. And received a booster vaccine against the Omikron virus, 29 people, who have never been infected with COVID And 23 people received the general COVID booster, 25 people received the general vaccine booster 4 doses. The blood samples were collected 14-32 days after the test subjects received the Omikron booster vaccine and collected. 23-94 days after the fourth dose of vaccination
Proofread…. Suree Silawong