Adenovirus is a type of virus that can cause a wide range of illnesses in humans, from the common cold to more serious conditions like pneumonia. It is the most common cause of acute upper and lower respiratory tract infections, including tonsillitis, bronchitis, croup, conjunctivitis, and pneumonia. Adenoviruses are also responsible for causing other illnesses such as gastroenteritis, meningitis, and urinary tract infections.
Adenoviruses are spread through contact with infected droplets in the air, such as from coughing and sneezing, or through contact with infected surfaces, such as door handles and toys. In some cases, adenoviruses can be spread through contaminated food or water.
Adenovirus infections usually cause mild to moderate symptoms, such as a sore throat, runny nose, and fever. In severe cases, adenovirus infections can cause more serious symptoms, including pneumonia, airway obstruction, and dehydration. Treatment of adenovirus infections typically involves rest, fluids, and over-the-counter medications to reduce symptoms. Severe cases may require antibiotics or antiviral medications.
Adenoviruses are common and can cause serious illnesses, but they are usually not life-threatening. Vaccines are available for some types of adenoviruses, such as those that cause respiratory illnesses. Vaccines are also available to protect against the adenovirus that causes conjunctivitis.