A former MP whose husband died of coronavirus has raised concerns about testing after he was twice told he didn't have the disease.
Betty Williams' husband Evan Williams, 79, had twice tested negative for Covid-19, but died on Good Friday, a fortnight after being taken to a hospital in Bangor, Wales.
He was on a general ward before falling seriously ill and moved to the intensive care unit and placed on a ventilator.
Evan was tested again for the deadly disease the day before his death, and the positive result was revealed to his wife Betty the day after he died.
The former Aberconwy MP told NorthWalesLive : "What worries me most about this is if the first two tests were negative, and the last test - the day before he died - was positive, he has either picked up the virus at Ysbyty Gwynedd or he had it when he went into hospital.
"If he took it in with him I'm really worried that he passed it on to other staff and patients.
"I've had discussions with senior officers there and they're now trying to find out who was on duty for the whole time Evan was a patient on the general ward, so they can go and test them."
Mrs Williams has also raised concerns with senior Welsh Government officials about the practice of taking Covid-19 swab tests to a laboratory in Cardiff rather than making these available in North Wales or Liverpool.
"I have pleaded with them to change that policy and set up a lab in this region as a matter of urgency," she said.
Mr and Mrs Williams had decided to self-isolate at their home in Talysarn near Penygroes on March 20 but he had started to feel ill a week later.
After taking medical advice Mr Williams remained at home for a few more days before his condition worsened and he was taken by ambulance to Ysbyty Gwynedd, Bangor.
Mrs Williams said her husband had a repeat test for coronavirus the day after the first test, because staff believed they had mislaid the first test.
They had not and the results of both tests came back negative.
Mr Williams was moved to a general ward where he was diagnosed with severe pneumonia and treated with oxygen and intravenous antibiotics and his condition improved.
There was even talk of him being allowed to return home.
A Betsi Cadwaladr University Health Board spokesman said: “Our duty is to protect the confidentiality of individuals being tested and treated for COVID-19, so we will not comment on circumstances at individual sites.
“We would like to thank our staff who are working tirelessly to care for all of our patients and urge people to follow the advice to stay at home and help protect themselves, their families and our NHS services.”
