Click below to watch a video report by ITV News Anglia's Rob Setchell
Doctors say those suffering from long-term conditions must not become "collateral damage" in the fight against coronavirus.
It comes as experts warn thousands more lives could be lost to cancer because of a reluctance to seek medical help during the pandemic - and as a deal sees private sector facilities transforming to treat NHS patients
Alison Peart has liver cancer. She's one of hundreds of patients now receiving treatment at the private Spire Hospital - rather than the Norfolk and Norwich University Hospital round the corner, which is focused on fighting Covid-19.
In Peterborough, cancer patients are now being assessed at the Fitzwilliam Hospital - another private facility used to take pressure off the NHS.
But there is huge concern that the pandemic has stopped people coming forward to get checked.
Experts say disruption due to coronavirus could mean almost 18,000 more people die with cancer across the country.
Coronavirus: Everything you need to know