Whenever he returns from holiday, even before he’s unpacked his bags, a doctor runs a shower for 20 minutes to protect against a deadly disease.
Dr Tom Makin heads straight to the bathroom, turns on the shower, before running out again and repeating the ritual. ‘I cover my nose and mouth with one hand and turn on the shower with the other,’ he says. ‘After 20 minutes or so, I’ll turn the shower off and then I won’t go back into the bathroom for at least another 20 minutes.’