When politicians and others speak about herd immunity, unfortunately, they are under the misconception that the current tools that we’ve got are adequate to eliminate the virus.
To get to stage C of the plan out of COVID, 80% of adults over 16 need to be vaccinated. But that equates to just under 65% of all Australians – too low to safely open international borders.
Vaccines can’t provide 100% protection, so it’s not a failure or surprise when some vaccinated people get sick with COVID-19. The good news is their cases are much less likely to be severe or fatal.
People who haven’t gotten vaccinated for COVID-19 often have complex reasons for their relunctance or may face other barriers. Lumping them all together undercuts the vaccination campaign.
Even when we immunise all Australians who want to be protected against COVID-19, we’re unlikely to achieve herd immunity through vaccination alone. We need three other measures to open our borders.
The question of whether we should be vaccinating children and adolescents against COVID-19 is currently being debated. Here’s why the answer is ‘not yet’.
The messages people under 60 have been getting about the AstraZeneca vaccine this week have been confusing, to say the least. Experts say to consider the risks and benefits. But how do you do this?
While Pfizer is still the preferred vaccine for under 40s, those who don’t want to wait can now talk to their GP about getting an AstraZeneca shot. But what risks and benefits do you need to weigh up?
Our attitudes and behaviours are shaped by what others in society do. So there’s a real danger that vaccine hesitancy, when reported widely in the media, could catch on to more people.
It is unlikely that we will reach full herd immunity for COVID-19. However, we are likely to reach a practical kind of herd immunity through vaccination.
Visiting Professor in Biomedical Ethics, Murdoch Children's Research Institute; Distinguished Visiting Professor in Law, University of Melbourne; Uehiro Chair in Practical Ethics, University of Oxford
Paediatrician at the Royal Childrens Hospital and Associate Professor and Clinician Scientist, University of Melbourne and MCRI, Murdoch Children's Research Institute