what is the organism that causes strep throat
group A streptococcus
title: Throat irritation text: the back of the throat or out of the nose. Post-nasal drip can be caused by the common cold, allergies to dust, smoking, or pet dander. Even spicy foods can sometimes cause post-nasal drip. Runny nose is not life-threatening but can be uncomfortable and socially unacceptable. It is caused by bacteria which if untreated can lead to many other problems in the body. Strep throat is most common in childhood but can affect people of all ages. It may present with throat pain, difficulty swallowing, painful and swollen tonsils, fever, headache, skin rash and flu. The diagnosis of strep throat title: Rapid strep test text: a common infection of the throat. Viral infections are responsible for the majority of pharyngitis, but a significant proportion (20% to 40% in children and 5% to 15% in adults) is caused by bacterial infection. The symptoms of viral and bacterial infection may be indistinguishable, but only bacterial pharyngitis can be effectively treated by antibiotics. Since the major cause of bacterial pharyngitis is GAS, the presence of this organism in a person's throat may be seen as a necessary condition for prescribing antibiotics. GAS pharyngitis is a self-limiting infection that will usually resolve within a week without medication. However, antibiotics title: Rheumatic fever text: fever may occur following an infection of the throat by the bacterium "Streptococcus pyogenes". If the infection is untreated rheumatic fever can occur in up to three percent of people. The underlying mechanism is believed to involve the production of antibodies against a person's own tissues. Due to their genetics, some people are more likely to get the disease when exposed to the bacteria than others. Other risk factors include malnutrition and poverty. Diagnosis of RF is often based on the presence of signs and symptoms in combination with evidence of a recent streptococcal infection. Treating people who have strep title: Streptococcal pharyngitis text: Streptococcal pharyngitis Streptococcal pharyngitis, also known as strep throat, is an infection of the back of the throat including the tonsils caused by "group A streptococcus" (GAS). Common symptoms include fever, sore throat, red tonsils, and enlarged lymph nodes in the neck. A headache, and nausea or vomiting may also occur. Some develop a sandpaper-like rash which is known as scarlet fever. Symptoms typically begin one to three days after exposure and last seven to ten days. Strep throat is spread by respiratory droplets from an infected person. It may be spread directly or by touching something that has droplets title: Streptococcal pharyngitis text: treated with paracetamol (acetaminophen) and nonsteroidal anti-inflammatory drugs (NSAIDS) such as ibuprofen. Strep throat is a common bacterial infection in children. It is the cause of 15–40% of sore throats among children and 5–15% among adults. Cases are more common in late winter and early spring. Potential complications include rheumatic fever and peritonsillar abscess. The typical signs and symptoms of streptococcal pharyngitis are a sore throat, fever of greater than , tonsillar exudates (pus on the tonsils), and large cervical lymph nodes. Other symptoms include: headache, nausea and vomiting, abdominal pain, muscle pain, or a scarlatiniform rash or palatal petechiae,