H3N2 influenza is potentially fatal in severe cases or secondary to pneumonia, etc. However, in the modern medical context, deaths due to H3N2 influenza infection are rare.
Influenza A (H3N2) is a respiratory disease caused by a mucovirus that spreads mainly through the respiratory tract, and patients tend to exhibit symptoms of the common cold, such as fever, malaise, etc., which may be accompanied by diarrhea, vomiting, etc. In severe cases, it may often be followed by pneumonia and respiratory failure, or even death.
Years ago, there were often aggregated outbreaks of H3N2 influenza, and the mortality rate of infection was high; however, nowadays, effective prevention can be carried out through vaccination, and even if infected, the symptoms are relatively mild, and can be relieved basically after treatment, which seldom leads to the occurrence of death.
In the event that you feel unwell and suspect the occurrence of H3N2 influenza, you should go to the hospital in a timely manner and receive treatment under the guidance of your doctor.