Three myths about COVID-19 — and the biggest challenge that lies ahead
2 years, 5 months ago

Three myths about COVID-19 — and the biggest challenge that lies ahead

ABC  

As an immunologist with four decades of research on antibodies under my belt, I always felt like I had a pretty good handle on COVID-19. COVID-19 left me with a serious heart complication that occurs in 2 per cent of infected people, with the risk not diminished by immunisation or prior infection. Unfortunately, vaccination didn't seem to help: the cumulative risk of heart disease was indistinguishable when the researchers split people who'd received two or more COVID-19 jabs and those who hadn't been vaccinated at all. Among people who received two AstraZeneca doses and a Pfizer booster, protection against infection had fallen from 95 per cent against Delta to just 45 per cent against Omicron. Because prior infection and vaccination don't stop the virus spreading, Omicron has already spawned an even more heavily mutated offspring, BA.5, which is three times better at evading our body's defences.

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