UK: Elevated measles activity reported nationwide, especially London through April

Event

International health officials have reported elevated measles activity across multiple regions in the UK, with 49 cases reported from Jan. 1-April 20. This is compared to 54 cases reported for the whole of 2022. Seven of the UK’s nine regions have reported cases, with London (33 cases) being the most affected, followed by the South West (6 cases), and North East (3 cases) regions. Health officials recommend that parents ensure their children’s measles vaccinations are up to date. This report represents the most complete data available as of May 5.

Context

Measles vaccination coverage in the UK is estimated at 89.8 percent, much lower than the 92-95 percent required to prevent wider community transmission. Authorities reported 54 cases nationwide in 2022, 2 cases in 2021, 95 cases in 2020, and 1,092 cases in 2019.

Measles is a very contagious viral disease that spreads through respiratory droplets created when an infected individual coughs, sneezes or speaks. Infected individuals can also expose people around them by contaminating surfaces with secretions from the nose, mouth, and throat. Symptoms typically appear 7-14 days after exposure but can develop up to 21 days after exposure. Symptoms generally include fever, cough, runny nose, red eyes, and a red rash that begins on the face and spreads downward. Serious complications - including pneumonia - can occur, especially in children younger than five years old, adults older than 20 years old, and individuals with a weakened immune system.

Advice

Visit a doctor to ensure vaccination against measles or immunity through previous infection. Practice basic health precautions. Call your medical provider if symptoms develop within three weeks of being in affected areas.