There were more than 3,000 care home deaths involving coronavirus in just one week at the height of the pandemic, new research has revealed.And there were more than 400 deaths involving Covid-19 each day in UK care homes during the most deadly point of the outbreak.Deaths rose five-fold between the start of the month and the care home peak on April 17, when nearly 500 residents died, according to the first UK-wide review of daily deaths by the PA news agency.At this time, testing for all staff and residents – regardless of symptoms – was not available in England, Scotland, Wales and Northern Ireland and providers had not yet been advised to restrict staff movements between homes.The potential risks of staff movement were first discussed at.