She's forgotten what it’s like to have a weekend. Or how it feels to be able to spend time with her family without her phone ringing and some medical expert wanting to pick her brain.
For almost a year Professor Glenda Gray’s every waking hour has been consumed by one thing: finding a way to help South Africa escape the clutches of Covid-19.
And her colleagues say we should all be grateful for the sacrifices she’s made – because if it wasn’t for her, SA’s vaccination plans might have totally stalled.