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Streptococcal pharyngitis, also known as streptococcal sore throat ( strep throat ), is pharyngitis (an infection of the pharynx, the back of the throat) caused by Streptococcus pyogenes, a gram-positive, group A streptococcus. [10] [11] Common symptoms include fever, sore throat, red tonsils, and enlarged lymph nodes in the front of the neck.
[1] [6] Symptoms usually last 3–5 days, but can be longer depending on cause. [2] [3] Complications can include sinusitis and acute otitis media. [2] Pharyngitis is a type of upper respiratory tract infection. [7] Most cases are caused by a viral infection. [2] Strep throat, a bacterial infection, is the cause in about 25% of children and 10% ...
An upper respiratory tract infection ( URTI) is an illness caused by an acute infection, which involves the upper respiratory tract, including the nose, sinuses, pharynx, larynx or trachea. [3] [4] This commonly includes nasal obstruction, sore throat, tonsillitis, pharyngitis, laryngitis, sinusitis, otitis media, and the common cold.
Most acute cases of laryngitis are caused by viral infections, [1] the most common of which tend to be rhinovirus, influenza virus, parainfluenza virus, adenovirus, coronavirus, and RSV. In patients who have a compromised immune system, other viruses such as herpes and HIV may also be potential causes.
Infectious mononucleosis ( IM, mono ), also known as glandular fever, is an infection usually caused by the Epstein–Barr virus (EBV). [2] [3] Most people are infected by the virus as children, when the disease produces few or no symptoms. [2] In young adults, the disease often results in fever, sore throat, enlarged lymph nodes in the neck ...
2–3 per year (adults) 6–8 per year (children) [ 13] The common cold or the cold is a viral infectious disease of the upper respiratory tract that primarily affects the respiratory mucosa of the nose, throat, sinuses, and larynx. [ 6][ 8] Signs and symptoms may appear in as little as two days after exposure to the virus. [ 6]
Gastroenteritis can be caused by viral, bacterial, or parasitic infections. Common routes of infection include: Fifty to seventy percent of cases of gastroenteritis in adults are caused by noroviruses (genus Norovirus, family Caliciviridae ). This virus is highly contagious and spreads rapidly. Norovirus is the most common cause of ...
Reactive airway disease. Reactive airway disease ( RAD) is an informal label that physicians apply to patients with symptoms similar to those of asthma. [ 1] An exact definition of the condition does not exist. [ 1][ 2] Individuals who are typically labeled as having RAD generally have a history of wheezing, coughing, dyspnea, and production of ...
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