It is not known what the true incidence of Lyme disease is. It is estimated that 3000 people develop Lyme disease each year in the UK, with a large proportion of people being undiagnosed. (2)
In the UK infection occurs most frequently in the following locations;
- New Forest.
- Salisbury Plain.
- Surrey and West Sussex.
- The South Downs.
- Parts of Wiltshire and Berkshire.
- The Lake District.
- The North York Moors.
- The Thetford Forest (Norfolk).
- The Scottish Highlands. (1)
Lyme disease has been acquired in people following foreign travel to the US, Germany, France, and other northern, central and eastern European countries. (1)
Peak times for tick feeding, and so transmission of infection, include late spring, early summer, and autumn. Infection can also occur during mild winters and wet summers. Lyme borreliosis is more commonly diagnosed during the summer season. This coincides with tick activity. However, cases are reported throughout the year. (3)