Influenza (flu) is a contagious respiratory illness caused by influenza viruses. Among them, Influenza A and Influenza B are the main types responsible for seasonal outbreaks. Understanding their differences is important not only for prevention and treatment, but also for accurate influenza virus testing and specimen collection in clinical and laboratory settings. What Is Influenza A? Influenza A is the …

Measles is a highly contagious viral illness that can lead to serious complications, especially in young children, pregnant people, and the immunocompromised. Although safe and effective vaccines have drastically reduced global cases, outbreaks still occur when vaccination rates fall. This guide explains symptoms, transmission, complications, diagnosis (including serologic testing and RT-PCR), treatment, and prevention. What is Measles? Measles is a …