Our brains cannot easily understand tiny risks so we tend to overestimate them. That's when we need a little extra help to make the best decisions about our health.
Clinical trials of the drug have shown mixed results.
It's OK to wait longer than three weeks between Pfizer doses, and this may even provide stronger protection. But this must be weighed against the risk of contracting COVID in the meantime.
Experts are continually monitoring how well COVID vaccines are working, their side effects, and the amount of disease in the community. These factors can change, and advice will adapt accordingly.
Health workers have long called for better protections against COVID-19. Well fitting masks are now required when caring for COVID-19 patients. But the guidelines on ventilation miss the mark.
Even if we came up with a definition of what makes the "best" vaccine, we don't have the luxury of choice, when vaccines are in short supply.
The federal government is due to launch a new advertising campaign for COVID-19 vaccines in July. This is a chance to offer something more engaging than what we've seen to date.
Unhealthy foods are readily available and heavily marketed to us, especially at supermarkets.
People who contract COVID, and their contacts, have successfully self-isolated at home since the pandemic began.
There are several earlier examples of people studying infectious pathogens being infected in the laboratory, even while working under strict biosafety conditions.
We recently heard reports of a new and dangerous 'hybrid' variant circulating in Vietnam. There is such as a thing as a hybrid viral variant — but this doesn't appear to be it.
Examining the records of 2,900 nursing homes we've found no evidence that where there's more competition there's better care or lower prices.
You may not need to sell the family home before entering aged care. There are other options.
The researchers found a link between shorter heights and lower bone mineral content among vegan kids, compared to meat-eaters. But they didn't show diets caused the difference – or that it lasted.
Community pharmacies and pharmacists are important resources in Australia's vaccine rollout, and right now they're being under-utilised.
Picture yourself at the gym. It might be confined, people are huffing and puffing, everyone is moving around. And that's before you hit the showers and change room.
The evidence is clear: a tax on sugary drinks would reduce consumption. All that's needed is political leadership that prioritises health above the profits.
If you have risk factors around blood clots, heart attack or stroke, this should actually be an impetus to get vaccinated sooner rather than later.
The latest advice is to offer COVID-19 vaccines to women at any stage of pregnancy to protect them from a higher risk of severe disease – and to give their babies an early boost of antibodies.
COVID has exposed how vulnerable Australia's food charities are in times of crisis. But we can prepare for the next disaster.
Australia is now rolling out the Pfizer vaccine to people aged under 50, with the 40-49 age group newly eligible. Here's what you can expect.
With more than 850 changes to Medicare on the cards, the system needs time to adjust. Hasty implementation may mean patients face higher gap fees.
History tells us the public will tolerate risk of harm from a vaccine if their fear of the disease exceeds their fear of the vaccine.
Our research found personalised nutrition advice, compared to usual dietary advice, helped adults to eat healthier.
Both the AstraZeneca and Pfizer vaccines still work relatively well against it — though only after the second dose.