Gym-goers could turn out to be coronavirus "super spreaders" as the disease causes chaos around the world, an expert has warned.
Sweaty fitness fanatics are likely to be a "high risk" group as the condition could take hold in gyms around the world.
Dr Norman Swan told ABC in Australia that saunas are going to be well worth avoiding in the coming weeks.
He said: "Dampness is a bad thing for spreading germs.
"You've got these big blokes pumping away and you never know, one of them might be a super spreader.

"It doesn't mean you stop going to the gym, you've got to be super careful at the gym. You've got to make sure you wipe down (the equipment) before and after use."
And he continued: "I wouldn't go near any humid area to be honest."
Immunologist Dr Jenna Macciochi, who is based at the University of Sussex, told the Huffington Post that gyms do pose a risk.
She said: “Everyone should take care to carefully clean equipment with alcohol-based sanitiser and wash hands regularly.
“Try not to touch your face and practise good etiquette with tissues.”
More than 100,000 people around the world have contracted coronavirus since the outbreak was confirmed in January.
The Bank of England today slashed the main interest rate to 0.25 per cent from 0.75 per cent in an effort to boost coronavirus-hit economy.
The central bank said the decision to cut the rate for the first time since August 2016 came following the spread of Covid-19, which has seen stock markets and shares plunge around the world.
The Government is expected to announce a range of emergency measures in today's Budget to tackle the outbreak.

In a statement the bank said its role is to help UK businesses and households manage through an economic shock from coronavirus "that could prove sharp and large, but should be temporary".
The Government will unveil a package of emergency measures to help tackle the coronavirus outbreak in today’s Budget.
Chancellor Rishi Sunak has been forced to rewrite his statement as a major epidemic heads the UK’s way.
The top Tory has said he will take “whatever action is required” to support the economy through the weeks ahead.
He suggested his financial plan would now focus on the “economic security” of the country.
And he warned that the economy could suffer a “supply shock” if lots of people fall ill.