Is Flu a Virus or Bacteria? Find Out Now

Understanding the Flu: It's a Virus, But Bacteria Can Complicate Things Eish, that flu! Is it a virus or bacteria causing all that misery? Let's get this straight: influenza (the flu) is caused by a virus – specifically, influenza viruses A, B, and C. However, bacterial infections can sometimes follow a bout of flu, making things even worse. Knowing the difference is crucial for getting better quickly. What is the Flu Virus?...

June 25, 2025 · 3 min · 570 words · Randall Bergman