It has been described as a once-in-a-century pandemic, but COVID-19 will cause a permanent shift in the way the world operates at the social, political and economic level.
Current advice for COVID-19 health workers is based on the assumption that droplets bearing the virus travel no further than 2 metres and do not remain in the air. The body of published evidence suggests otherwise.
Biosecurity expert Raina MacIntyre says healthcare workers are concerned about dwindling supplies of personal protective equipment, and need to be aware of existing evidence to make an informed choice.
There's no evidence you can spread the novel coronavirus before showing symptoms, but one study suggests it's possible for children and young people to be infectious without ever having symptoms.
A major review by UNSW researchers has identified strong evidence that a virus called Enterovirus D68 is the cause of a mystery polio-like illness that has paralysed children in the US, Canada and Europe.
Antimicrobial resistance is sometimes called an "epidemic" and some experts predict it will cause 10 million deaths by 2050, but new research puts it into perspective.
