Australia's COVID-19 vaccination program is expanding, with all adults who haven't had a booster or contracted the virus in the past six months soon to be eligible for another dose.
Australia's COVID-19 vaccination program is expanding, with adults soon eligible for another booster.Experts say those who have had COVID-19 multiple times are not immune to new and emerging strains.
"Protection falls away or wanes over time, that happens with protection from vaccination as well as protection from past infection," he told SBS News. Experts say many of the vaccinations that were rolled out in the earlier stages of the pandemic were created based on virus strains such as Delta or Omicron.
"But if it was the case that if you've been infected once, you were protected, you wouldn't have multiple infections." "Each time our immune system sees the virus or vaccine, they make better antibodies ... whether these are going to be enough to capture these
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