Respiratory – Lambeth Health Press

Influenza

Influenza, commonly known as flu, is a contagious respiratory illness caused by influenza viruses. It affects the nose, throat, and sometimes the lungs. Although many cases are mild, influenza can cause severe illness and death, especially in vulnerable groups. Annual vaccination and good public health measures are key to prevention. Causes Influenza is caused by infection with influenza viruses. There are three main types affecting humans: Influenza A Influenza B Influenza C (causes milder symptoms) Influenza A and B are responsible for seasonal epidemics. Influenza A viruses are further classified into subtypes based on surface proteins (e.g., H1N1, H3N2). Pathophysiology Once inhaled, the virus binds to epithelial cells in the

Coryza (Common Cold)

Coryza, commonly known as the common cold, is a mild viral infection of the upper respiratory tract, mainly affecting the nose and throat. It is self-limiting and usually resolves within 7 to 10 days without the need for specific treatment. Despite being a benign condition, it contributes significantly to lost work and school days and can lead to complications, particularly in vulnerable groups. Causes The common cold is mainly caused by viruses, with over 200 different types identified. The most common viruses include: Rhinoviruses (majority of cases) Coronaviruses (other than COVID-19 types) Respiratory syncytial virus (RSV) Adenoviruses Parainfluenza viruses Pathophysiology The virus enters the body via the nose or mouth

Condition Category: Respiratory

Influenza

Coryza (Common Cold)