coronavirus positive a month after being vaccinated – and just days after his second dose was cancelled. David Longden, 43, is an A&E nurse at the Princess of Wales Hospital in Bridgend, south Wales, one of the country’s most overrun emergency departments.He is now having to self-isolate in a log cabin at home in Pontypridd so he doesn’t come into contact with his partner Andrew Price, having tested positive on January 8.He received the Pfizer jab on Tuesday, December 8, and was meant to get his second dose on Tuesday, January 5.But in the interim, the UK's four chief medical officers, along with experts on the Joint Committee on Vaccination and Immunisation (JCVI), advised giving both parts of the Oxford and Pfizer vaccines 12 weeks.