Tonsil infection symptoms

The tonsils contain Components of the Immune System The immune system is designed to defend the body against foreign or dangerous invaders. Such invaders include Microorganisms (commonly called germs, such as bacteria, viruses, and fungi) Parasites... read more that is part of the body's immune defense system. Thus, the tonsils and nearby throat tissue frequently become infected by organisms that enter the nose and throat. Throat infections are usually caused by a virus. Most often, it is one of the viruses that cause the common cold, such as rhinovirus, adenovirus, influenza virus, or respiratory syncytial virus. Less often, another virus is involved, such as the Infectious Mononucleosis Epstein-Barr virus causes a number of diseases, including infectious mononucleosis. The virus is spread through kissing. Symptoms vary, but the most common are extreme fatigue, fever, sore throat... read more (which causes mononucleosis) or Human Immunodeficiency Virus (HIV) Infection (HIV). In less than one third of people, throat infections are caused by a bacterial infection. Group A streptococcus ( Streptococcal Infections Streptococcal infections are caused by any one of several species of Streptococcus. These gram-positive, sphere-shaped (coccal) bacteria (see figure ) cause many disorders, including... read more ) is the most common bacterial cause and usually occurs in children between age 5 and age 15. Strep throat is less common in children under age 3 and in older adults. Untre...