influenza a symptoms influenza tipe a A 24-hour flu can cause congestion, runny nose, cough, and fever. But why does it happen? Here, doctors explain 24-hour flu symptoms and causes
influenza type a Influenza A viruses are characterized by their surface glycoproteins, hemagglutinin HA, and neuraminidase NA, which are responsible for attachment and release of viral particles respectively. Influenza viruses are known for their ability to undergo genetic reassortment, resulting in the emergence of novel strains with pandemic potential
influenza a Influenza is an acute respiratory infectious disease caused by influenza viruses. Seasonal influenza leads to approximately one billion cases annually, with 3–5 million cases of severe illness