Most western countries, including Australia, have advised against the use of face masks by the general public during the coronavirus outbreak.
But now, that international advice is under review, just as the hospital system deals with an unprecedented shortage.
Read more here: https://ab.co/34793po
For more from ABC News, click here: https://ab.co/2kxYCZY
You can watch more ABC News content on iview: https://ab.co/2OB7Mk1
Go deeper on our ABC News In-depth channel: https://ab.co/2lNeBn2