What microorganism causes the strep throat?

The microorganism that causes strep throat is the bacterium Streptococcus pyogenes, also known as Group A Streptococcus (GAS). It is a highly contagious bacterium that can cause a range of infections, including strep throat, tonsillitis, scarlet fever, and more severe invasive infections such as necrotizing fasciitis (flesh-eating disease) and streptococcal toxic shock syndrome.

Strep throat is characterized by severe sore throat, difficulty swallowing, fever, headache, and swollen lymph nodes in the neck. It can be spread through close contact with an infected individual via respiratory droplets, such as through coughing or sneezing, or by sharing contaminated food or drinks.

To diagnose strep throat, a healthcare provider typically performs a rapid antigen test or throat culture to detect the presence of Streptococcus pyogenes. If strep throat is confirmed, treatment usually involves antibiotics, such as penicillin or amoxicillin, to eliminate the bacteria and relieve the symptoms. It is essential to complete the entire course of antibiotics as prescribed by the healthcare provider to prevent complications and ensure complete eradication of the infection.