South African lab study finds COVID-19 Omicron subspecies BA.4 and BA.5 that was just discovered last April. Has the ability to evade immunity or antibodies caused by infection with the original omicron strain and vaccination against COVID-19.
These findings may signal that in the near future There may be a new wave of COVID-19 outbreak, with Omikron BA.4 and BA.5 as the main strains of the outbreak.
Found again, subspecies omikron BA.4 and BA.5
Omikron BA.4 and BA.5 emerge South Africa. It spreads quickly but may not be more severe than others.
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The study examined 39 blood samples, drawn from people who had been infected with COVID-19. The original strain Omikron (BA.1) had yet to be vaccinated, among 24 samples of 15 vaccinated people, eight of whom received the Pfizer COVID-19 vaccine and seven others received the Pfizer vaccine. of Johnson & Johnson
Blood test results of people who have been infected with COVID-19 The original Omicron strain (BA.1) found that the production of Neutralizing Antibody (NAb) was nearly 8-fold lower when tested for COVID-19. Subspecies BA.4 and BA.5
In blood samples from a cohort of people vaccinated against COVID-19, levels of NAb antibody production decreased by about three times.
The research team stated that “Neutralize levels were low when tested with BA.4 and BA.5, especially in the unvaccinated group. It is unlikely to prevent symptomatic infection well… This may indicate that Due to their ability to escape immunity, BA.4 and BA.5 have the potential to cause new waves of infections.”
It is expected that South Africa may face a fifth wave of COVID-19 outbreak sooner than expected, with South Africa’s infection rate continuing to rise. This is likely caused by outbreaks of omikron subspecies BA.4 and BA.5.
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Compiled from Bloomberg.