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Symptoms of COVID-19. Some less common symptoms of COVID-19 can be relatively non-specific; however the most common symptoms are fever, dry cough, and loss of taste and smell. [1] [22] Among those who develop symptoms, approximately one in five may become more seriously ill and have difficulty in breathing.
While new variants of SARS-CoV-2, the virus that causes COVID-19, have come and gone in the five years the illness has circulated the globe, its array of symptoms hasn’t evolved as swiftly.
“The exact [way] COVID-19 causes a sore throat is not fully understood, but it is thought to be related to the virus’s ability to bind to ACE2 receptors in the throat and upper respiratory ...
The most recent COVID-19 vaccine should offer protection against the XEC variant, Russo says. “The most recent version of the vaccine seems to be reasonably well-matched,” he says.
It is a common symptom of allergies or certain viral infections, such as the common cold or COVID-19. It can be a side effect of crying, exposure to cold temperatures, cocaine abuse, [2] or drug withdrawal, such as from methadone or other opioids. [3] Treatment for rhinorrhea may be aimed at reducing symptoms or treating underlying causes.
Infants may also have symptoms of an ear infection. [6] Onset is usually two to fourteen days after exposure to the virus. [10] There may be tiredness, chills, muscle aches, or headache. [6] However, some people have no symptoms. [5] Generally, a day or two after developing a sore throat with large tonsils, glands can be felt in the neck. [16]
For some, COVID-19 symptoms may persist weeks to months after the initial infection. In 2022, 6.9% of US adults reported to have experienced long COVID, according to a CDC survey .
One of the most common causes is Staphylococcus aureus and often follows a recent viral upper respiratory infection. Bacterial tracheitis is a rare complication of influenza infection. [ 4 ] It is the most serious in young children, possibly because of the relatively small size of the trachea that gets easily blocked by swelling.