The David Hide actor told The Mirror that: "Lockdown and this whole coronavirus period has been incredibly challenging for so many families. I can completely understand what so many people have been going through.
"It's been a very peculiar time in all our lives. But the support we had for my sister-in-law from the NHS nurses and doctors was incredible. My mum's carers went above and beyond to help her through it. I think it makes you realise what's important in life.
"You just need to be kind to people and understand what they might be going through. People are going through very difficult times with their families or losing someone, so it's tough for everybody.
"I might dress up as a nurse and put on my scrubs but my ultimate respect and thanks goes out to all those real nurses and doctors who have been doing such an incredible job on the front line."
Tonight's (August 8) episode of Casualty will focus on Durr's character, as the show will revisit his mental health story from 2017 where he had a psychotic episode in which he unintentionally endangered his friend Robyn Miller (Amanda Henderson) and her baby daughter Charlotte.
Casualty continues tonight at 8.40pm on BBC One.
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