NHS hospitals in England are facing a worst-case scenario this flu season with a record rise in hospital admissions. Last week, an average of 2,660 flu patients were hospitalized per day, which is 55% more than the week before and the most for this time of year[1]. The flu wave is caused by a mutated strain of H3N2, which is more aggressive and has caused a tenfold increase in patients compared to last year[1][2]. The season started unusually early and children between the ages of 5 and 14 are most affected[1]. At the same time, the NHS is facing increased pressure due to record demand on emergency admissions, an increased number of ambulances and impending strikes by resident doctors, which is worsening the situation in hospitals[2][3]. Health officials are appealing for the vaccination to be available for at-risk groups, the elderly, pregnant women and medical personnel, and it takes about two weeks to develop immunity[1][3]. Some hospitals have introduced mandatory wearing of masks in selected departments to limit the spread of influenza and other respiratory viruses[2]. Hospitalizations associated with other viruses such as norovirus and Covid are down compared to previous years, but the pressure on the healthcare system is still growing due to superflu[3].