The most common bacterial cause of a sore throat, known as strep throat or streptococcal pharyngitis, is the bacterium Group A Streptococcus (GAS), also called Streptococcus pyogenes. It's a highly contagious infection, especially common in school-aged children and teens, leading to inflamed tonsils, fever, and painful swallowing, requiring antibiotics for proper treatment to prevent complications like rheumatic fever.
The most common bacterium that causes a sore throat is Streptococcus pyogenes, also called group A streptococcus.
This group of streptococci, otherwise known as streptococcus agalactiae², is most commonly associated with neonatal infections. Its effect on susceptible populations, such as pregnant women, newborns, and the elderly, remains a high source of mortality in those groups.
Swelling, redness, and white patches are common symptoms of strep throat. Less common symptoms, especially for children, may include: Headache. Nausea or vomiting.
Knowing whether your sore throat is viral or bacterial is usually determined by symptoms. Viral sore throats usually consist of a cough, swelling in the throat, and runny nose whereas bacterial sore throats are typically accompanied with nausea and vomiting, stomach ache, and there is no cough.
Most sore throat symptoms go away with home care within a few days. But you should contact a healthcare provider if your sore throat lasts longer than a week, gets worse or you develop symptoms like a fever or swollen lymph nodes.
a swab test to see if bacteria are causing your tonsillitis (a cotton bud is used to wipe the back of your throat) a blood test for glandular fever if symptoms are severe or will not go away.
Viral illnesses that can cause sore throat that may be mistaken for strep throat include:
Gargle with Salt Water
Gargling warm salt water (about half a teaspoon in a cup of warm water) several times a day can reduce swelling, kill bacteria, and provide quick comfort.
Group A streptococci are bacteria commonly found in the throat and on the skin. The vast majority of GAS infections are relatively mild illnesses, such as strep throat and impetigo.
Streptococcal bacteria are contagious. They can spread through droplets when someone with the infection coughs or sneezes, or through shared food or drinks. You can also pick up the bacteria from a doorknob or other surface and transfer them to your nose, mouth or eyes.
Group B Strep is one of the many bacteria that normally live in our bodies and which usually cause no harm. Group B Strep may be passed from person to person through direct physical contact. It is not a sexually transmitted disease. Testing for GBS is not routinely offered to all pregnant women in the UK.
“Pregnant women have sore throats just like everyone else,” says Omid Mehdizadeh, MD, an otolaryngologist and laryngologist at Pacific Neuroscience Institute in Santa Monica, California. Rest assured that in most cases, a sore throat won't impact baby and can be treated with home remedies.
Viruses, like those that cause colds or flu, are the most common cause of sore throat. These viruses are not strep throat. Other causes of sore throat include: The bacteria group A Streptococcus, which causes strep throat (also called streptococcal pharyngitis).
“Sore throats are very common. While viral infections are the most common cause, severe or persistent pain may be indicative of a more serious problem. If your throat pain lasts longer than 3 weeks or if you are concerned, visit your local doctor.”
Throat diseases
Stage 1 of a sore throat, often the start of a cold or flu, involves early symptoms like a tickle, scratchiness, or mild pain in the throat, possibly with sneezing, usually appearing 1-3 days after infection, and can be managed with rest, fluids, saltwater gargles, and OTC pain relievers, but see a doctor if it's severe, lasts over a week, or comes with a high fever or trouble breathing.
To quickly soothe a sore throat, drink warm liquids like honey lemon tea, chamomile, or broth, which coat and calm irritation, or try cold drinks/popsicles to numb the pain and reduce inflammation, with warm saltwater gargles (for adults/older kids) also offering fast relief by breaking down secretions and killing bacteria.
A mild sore throat usually isn't a cause for concern, but some cases need medical attention. See a doctor if you experience: A sore throat lasting longer than a week. Persistent pain could indicate an underlying condition like chronic postnasal drip, acid reflux, or tonsillitis.
sore throat with swollen tonsils that may have white patches. swollen lymph nodes (glands) in the neck. being very tired.
Strep throat and COVID-19 can both cause a sore throat. Strep and COVID-19 have different origins, which also causes them to require different treatment strategies. It's possible to have strep and COVID-19 at the same time.
A cough, hoarse voice or nasal discharge points to a cold as the cause. If a sore throat is the only symptom, it's still usually viral. A fever may also be present. Viral throat infections can be treated at home.
Tonsillitis is contagious so infection may indeed spread by close physical contact with other people, or by droplets in the air, caused by sneezing or coughing. As with coughs, colds, flu and other similar infections, there is a chance that you can pass on the virus or bacterium that has caused tonsillitis.
Usually, the underlying cause is a virus, but there could be other causes, such as an allergy, environmental pollutants, smoking, acid reflux or infected and inflamed tonsils, according to Dr. Patton. In the winter, waking up with a scratchy throat simply can be the result of dryness in the air.
There have been cases in which COVID-19 causes tonsillitis, although this doesn't happen frequently. Most cases of viral tonsillitis can be treated with at-home remedies.