Influenza A virus subtype H3N2 is a subtype of influenza A virus. Some human-adapted strains of A/H3N2 are endemic in humans and are one cause of seasonal influenza. Other strains of H1N1 are endemic in pigs and in birds. From Wikipedia
The 2024-25 flu season has caused over 33 million illnesses and surpassed COVID-19 in mortality for the first time since the pandemic began.