Simplify the following text for a Grade 9 native English-speaking person.
Original: The disease was first described by Adolf Weil in 1886 when he reported an `` acute infectious disease with enlargement of spleen , jaundice and nephritis '' .
Simplified: It was first described by Adolf Weil in 1886 . At the time he reported an `` acute infectious disease with enlargement of spleen , jaundice and nephritis '' .