Polyarticular Septic Arthritis Caused by Non-encapsulated Haemophilus influenzae Biotype I in a Rheumatic Adult

Abstract

Haemophilus influenzae causes less than 1% of all septic arthritis cases in adults. Most often serotype b is responsible. Here we describe a rare case of non-encapsulated H. influenzae-induced polyarticular septic arthritis in a rheumatic patient with no other infectious focus.