Learn about Haemophilus Ducreyi with Picmonic

This is a gram-negative bacteria.

Coccobacillus is an intermediate shape between spherical coccus and rod-shaped bacilli.

Pleomorphic means that the bacteria can take on multiple physical forms.

On Gram stain, the bacteria appear as short parallel chains that are often described as a school of fish appearance.

On Gram stain, the bacteria appear as short parallel chains that are often described as a school of fish appearance.

A chancroid is an acute, sexually transmitted ulcerative infection caused by Haemophilus ducreyi.

Patients develop a painful ulcer involving the external genitalia. Initially, the lesion develops as a tender papule and then erodes to produce an irregular ulcer.

Inguinal lymph nodes may become enlarged and tender and can erode the overlying skin to produce a draining ulcer in the inguinal region.

Azithromycin is a macrolide antibiotic that can be used as treatment for Haemophilus ducreyi.

Ceftriaxone is a cephalosporin antibiotic that can be used as treatment for Haemophilus ducreyi.