Hokkaido influenza virus

Hokkaido influenza virus refers to a specific strain of the flu virus that was identified in Hokkaido, Japan. Like other influenza viruses, it causes respiratory illness with symptoms such as fever, cough, sore throat, and fatigue. These viruses are highly contagious and can spread easily through respiratory droplets when people cough or sneeze. The virus can mutate over time, which is why flu vaccines are updated annually. Understanding strains like the Hokkaido influenza virus helps scientists monitor outbreaks and develop effective vaccines to protect public health.