The UK Health Security Agency has issued a warning about adenovirus, a common respiratory infection also called the “gladi virus.” While more prevalent in children and infants, people of all ages can contract it at any time of the year.

What is Adenovirus?

Although usually mild and often mistaken for a common cold, adenovirus can be more serious for those with weakened immune systems. It may also cause:

• Conjunctivitis (eye infection)

• Croup

• Ear infections

How It Spreads

Adenovirus is highly contagious and can spread through:

• Airborne droplets from coughing or sneezing

• Close personal contact, such as handshakes

• Touching contaminated surfaces, then eyes, nose, or mouth

• Contact with infected feces, such as during diaper changes

• Contaminated swimming pool water

Common Symptoms

Symptoms usually appear 2–14 days after exposure:

• Fever

• Sore throat

• Runny or blocked nose

• Cough

Seek medical attention if you experience:

• Persistent high fever

• Difficulty breathing

• Red or painful eyes, or vision changes

• Severe diarrhea or vomiting, signs of dehydration

Recovery and Treatment

Most cases resolve naturally with rest and plenty of fluids, typically lasting a few days up to two weeks. Severe cases, especially in infants, the elderly, or immunocompromised individuals, may require hospitalization.

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