UKHSA Issues Guidance on Rising Adenovirus Cases

The UK Health Security Agency has issued guidance on adenovirus, a highly contagious virus that commonly infects most people in the United Kingdom before age 10 and is contributing to the wave of respiratory illnesses this winter. Unlike seasonal viruses such as the flu or common cold, adenovirus circulates year-round and can cause a range of mild to severe symptoms, particularly in young children, with recent data indicating a rise in cases.

Adenovirus belongs to a family of more than 50 virus types that primarily affect the respiratory system but can also impact the gut, eyes, urinary tract, or nervous system. According to the agency, infections typically produce symptoms resembling a common cold, including sore throat, runny or stuffy nose, cough, fever, fatigue, headaches, and body aches. In some instances, it leads to more serious conditions like pneumonia, bronchitis, conjunctivitis, gastroenteritis, or ear infections, especially among infants and young children. Symptoms usually appear two days to two weeks after exposure and last from a few days to two weeks in healthy individuals, though severe cases may persist longer.

The virus spreads easily through close contact in...