I just googled as I was curious and found this from daily telegraph reporting on what government advisers say
"When will the virus peak in the UK?
Professor Chris Whitty, England's Chief Medical Officer, said on March 12 that he expects the UK would reach the peak of its coronavirus outbreak in about 10 to 14 weeks. “If you move too early, people get fatigued,” he said, when asked about how to respond effectively to the virus. “This is a long haul.”
That timeframe would mean that the number of infections would not peak before the Easter break, but could hit the UK hardest in the May half-term holidays.
The Department of Health has advised that the peak is likely in about three months when 95 per cent of the infections are expected to take place. It means that most people will contract the virus between late May and late June.
The Prime Minister said this week that the most "dangerous period is not now, but some weeks away, depending on how fast it spreads". "
So I don't think your holiday will be able to go ahead. I'm sorry