This on the ABC News app:
Hand sanitiser has rapidly been selling out in shops for weeks, but there are concerns that variations in alcohol levels mean some are not providing adequate protection.
"It's dangerous in that they may not work anywhere near as well as you'd expect," Peter Collignon, professor of infectious diseases at the Australian National University, said.
Across Australia, there are thousands of products that are marketed as hand sanitiser, but not all are equal. The least effective are sanitisers that contain no alcohol.
Experts say the gold standard is a sanitiser with 60–80 per cent alcohol — the level required to kill the virus if it is on your hands.
Ultimately, the best way to stay safe is to stay home — and when it comes to keeping hands clean,
washing them thoroughly in warm soapy water is more effective than any hand sanitiser.
"None of them are helpful unless you're minimising your touching practices and using good hand hygiene," Professor McLachlan said.
"So, making sure you're avoiding high-touch surfaces like ATMs, handrails, lift buttons, using other parts of your body like elbows, knees or feet to open doors, and also not touching your eyes, face and nose.
These are the things that are so important."