Waterhouse friederichsen syndrome is caused by
Neisseria gonorrheae
Neisseria meningitidis
Chlamydia trachomatis
Lymphogranuloma venerum
Waterhouse friederichsen (WF) syndrome is fulminant meningococcemia characterized by shock, disseminated intravascular coagulation, petechial rash and multisystem failure due to the lipo-oligosaccharide mediated damage of the vascular endothelium. it is caused by N.meningitidis
Systemic Bacteriology (Gram Positive Cocci, Gram Negative Cocci)