Strep Throat

Strep throat, also known as streptococcal pharyngitis, is a bacterial infection caused by Group A Streptococcus (GAS). It is a common illness that affects the throat and tonsils, causing pain, inflammation, and discomfort.

Symptoms

  • Painful sore throat
  • Red and swollen tonsils
  • White or yellow patches on the tonsils
  • Fever, usually high (over 101°F)
  • Swollen lymph nodes in the neck
  • Headache
  • Stomachache
  • Nausea and vomiting
  • Rash (in some cases)

Causes and Risk Factors

Strep throat is caused by the Group A Streptococcus bacterium, which is highly contagious. The infection can spread through:

  • Close contact with an infected person
  • Sharing food or drinks
  • Coughing or sneezing
  • Touching contaminated surfaces

Risk factors for developing strep throat include:

  • Age: Strep throat is most common in children between 5-15 years old
  • Weakened immune system
  • Poor hygiene
  • Crowded living conditions

Diagnosis

A diagnosis of strep throat is typically made through a combination of:

  • Physical examination
  • Medical history
  • Rapid strep test (RST): A quick test that detects the presence of GAS antibodies
  • Throat culture: A more accurate test that involves sending a throat swab to a laboratory for analysis

Treatments

The primary treatment for strep throat is antibiotics, which help to:

  • Eliminate the bacterial infection
  • Reduce the risk of complications
  • Shorten the duration of symptoms

Commonly prescribed antibiotics for strep throat include:

  • Penicillin
  • Amoxicillin
  • Azithromycin (for those allergic to penicillin)

In addition to antibiotics, other treatments may include:

  • Pain relief medications, such as acetaminophen or ibuprofen
  • Throat lozenges or sprays to soothe the throat
  • Rest and hydration to help the body recover

Complications

If left untreated, strep throat can lead to complications such as:

  • Rheumatic fever: A rare but serious condition that can cause heart damage
  • Kidney inflammation (poststreptococcal glomerulonephritis)
  • Abscesses or pockets of pus in the throat
  • Sinusitis or ear infections

Prevention

To reduce the risk of developing strep throat, practice good hygiene by:

  • Washing hands frequently with soap and water
  • Avoiding close contact with people who have strep throat
  • Not sharing food or drinks
  • Covering the mouth and nose when coughing or sneezing

Article last updated on: 11th April 2025.
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