Complex sentence: The EM rash associated with early infection is found in about 70-80% of patients and can have a range of appearances including the classic target bull's-eye lesion and nontarget appearing lesions.
Split into simpler sentences: The EM rash associated with early infection is found in about 70-80% of people infected. It can have a range of appearances including the classic target bull's-eye lesion and nontarget appearing lesions.