Harry Potter actress Jessie Cave has revealed her newborn baby has been hospitalized due to COVID-19.

Cave, known for her role as Lavender Brown in the Potter series, made the revelation via an Instagram post on Tuesday, showing her baby in a hospital room plus a laptop playing a speech from UK Prime Minister Boris Johnson. The English leader was announcing a new lockdown in the country.

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Jessie, 33, also urged folks to be extra careful, stating that her infant son's coronavirus strain is stronger and more contagious.

"I watched the news about lockdown from an isolated room in hospital," she wrote as the caption to her post. "Poor baby is covid positive. 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. Really didn’t want this to be the start of my families new year. Really didn’t want to be back in a hospital so soon after his traumatic birth.

"Once again I’m in awe of nurses and doctors. It makes me even more proud of my brother, a&e doctor @pondermed and my father, king GP @davidlloyd73 .... please wish baby a speedy recovery. He’s 9llbs 7 now so he’s a stronger and bigger boy than he was when we were last in a hospital room (and the needle went into his hand with louder more powerful screams. Love and best wishes to everyone."

The London national played Lavender in the last three Harry Potter movies and was more recently involved in television series Trollied.

She gave birth to her third child in October, noting it was "extreme" as he was placed in a neonatal unit after birth, which is likely why she wasn't keen on returning to a hospital anytime soon.

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