Middlesbrough boss Neil Warnock wants the public to fully appreciate the seriousness of coronavirus, having recovered from the illness.
The government has brought in tougher lockdown restrictions in the north east in response to a rising number of cases in the region.
"It's life and death with this horrible virus," Warnock said.
"That's why it annoys me when I see 200 kids having a party. It's not so much what's happening in their vicinity, it's what's going to happen in the wider area when they go and speak to somebody else and somebody else.
"They must have grandparents and parents that are older and have got problems.