Several NHS trusts in England have declared critical incidents amid a significant rise in flu cases. Hospitals are facing 'exceptionally high' demand, particularly in emergency departments, driven by a surge in respiratory illnesses. NHS data shows that the number of patients hospitalised with flu in England has quadrupled over the past month, exacerbated by cold weather. The Royal Liverpool University Hospital, the largest in Merseyside and Cheshire, stated that while it has a comprehensive plan to address the challenges, some patients will experience delays as priority is given to the most critical cases. It is working with partner organisations to discharge medically fit patients promptly to free up space. Non-emergency patients are being urged to use alternative services like GPs, pharmacies, walk-in centres, or the NHS 111 helpline.