“I watched the news about lockdown from an isolated room in hospital. Poor baby is covid positive,” Cave wrote.
“He’s okay and doing well but they are being vigilant and cautious, thankfully. This strain is super powerful and contagious so I do hope that people take extra care in the coming weeks,” the 33-year-old added.
The actress and comedian played Hogwarts student Brown in the final three “Harry Potter” films, and more recently appeared in the TV series “Trollied.”
“Really didn’t want to be back in a hospital so soon after his traumatic birth,” Cave wrote in her Instagram post on Tuesday.