Skip to content
ClinCalc Pro
Menu
Infectious Disease

Lyme Disease

NICE NG95 — erythema migrans = clinical diagnosis; targeted serology for non-EM features; doxycycline first-line.

Source: NICE NG95 (2018)

Step 1 of ~4
info

Recognise

History: tick exposure (UK endemic — moorland, woodland, especially Highlands, Lake District, North Yorkshire, New Forest, Surrey). Features by stage: • Early localised (3–30 days): erythema migrans (≥5 cm, expanding bullseye lesion) — present in 70%, diagnostic. • Early disseminated: multiple EM, facial nerve palsy / cranial neuropathy, lymphocytic meningitis, atrioventricular block, arthralgia. • Late (months-years): Lyme arthritis, late neuroborreliosis, acrodermatitis chronica atrophicans (Europe-typical).

Related

Curated clinical cross-links plus same-class fallbacks.

Decision support only. Always apply local guidelines and clinical judgement.