Pharmacist explains truth behind ‘mystery illness’ surging across UK as unusual eye symptom revealed

Reports about a so-called “mystery illness” spreading worldwide have caused concern, but experts say the situation is not as alarming as headlines suggest. Despite claims of an untreatable virus, doctors explain that the illness is already well known.

With seasonal colds, flu, and a new flu strain already circulating, fears of another dangerous virus quickly spread. Media reports described a fast-moving respiratory bug with unusual resilience, prompting health professionals to stay alert.

According to Ian Budd, a lead prescribing pharmacist, the illness being labeled a “mystery virus” closely matches adenovirus infections. Public health officials and clinicians have been seeing more cases, particularly during the winter months.

Adenoviruses are a large group of viruses that can cause infections ranging from mild to severe. They mainly affect the respiratory system and often resemble cold or flu symptoms. These viruses are not new and have existed for many years.

There are around 50 types of adenoviruses that can infect humans. Experts believe cases are rising because community immunity may be lower, making people more vulnerable this season.

Symptoms include cough, fever, sore throat, runny nose, and swollen lymph nodes. A key difference from flu is conjunctivitis, or pink eye, which causes redness, irritation, discharge, and watering of the eyes.

Although there is no vaccine for adenovirus, this does not mean it is dangerous or untreatable. Most cases resolve with rest, fluids, and over-the-counter medication. The virus spreads through close contact, contaminated surfaces, and occasionally water, but most infections remain mild.