It's a rash that's often the first symptom of Lyme disease. It's typically a circular red area. It might clear in the middle, forming a bull's-eye pattern, but most of the time it doesn't. It can ...

Erythema migrans and erythema multiforme both cause target- or bull’s-eye-shaped lesions. Erythema migrans is due to Lyme disease. Erythema multiforme is an immune-mediated hypersensitivity skin ...

Toxocariasis is a globally pervasive zoonotic infection caused by the larvae of Toxocara canis and Toxocara cati, parasites of dogs and cats. Human infection arises through ingestion of embryonated ...