Outline five causative agents of tonsillitis?

1. Bacteria: Streptococcus pyogenes (Group A Streptococcus) is the most common bacterial cause of tonsillitis. Other bacteria that can cause tonsillitis include Staphylococcus aureus, Haemophilus influenzae, and Streptococcus pneumoniae.

2. Viruses: Viral infections are a common cause of tonsillitis, especially in children. Common viruses that can cause tonsillitis include the Epstein-Barr virus (EBV), which causes infectious mononucleosis, as well as adenoviruses, influenza viruses, and rhinoviruses.

3. Fungi: Fungal infections can also cause tonsillitis, although they are less common than bacterial or viral causes. Candida species, such as Candida albicans, are the most common fungi associated with tonsillitis.

4. Allergens: Allergic reactions to certain substances can cause inflammation of the tonsils, leading to tonsillitis. Common allergens that can trigger tonsillitis include pollen, dust mites, pet dander, and certain foods.

5. Environmental factors: Exposure to environmental irritants, such as cigarette smoke, pollution, or dry air, can irritate the tonsils and make them more susceptible to infection. These factors can contribute to the development of tonsillitis, especially in individuals with weakened immune systems.