Invasive Bacterial Disease

Invasive Bacteria Disease  |  Antibiotic Resistance  
Antibiotic Resistance Surveillance

group B streptococcus (Streptococcus agalactiae)  GBS

A bacteria that may cause illness in newborn babies, pregnant women, the elderly, and adults with chronic illnesses such as cancer, liver disease and diabetes. GBS is the most common cause of life-threatening infections in newborns.

group A streptococcus (Streptococcus pyogenes) GAS

A bacteria that is often found in the throat and on the skin of people. It usually is carried without causing illness, GAS usually causes mild illness such “strep throat” and impetigo. Occasionally, GAS can cause severe, life-threatening illness like blood infections, toxic shock syndrome and necrotizing fasciitis

Haemophilus influenzae - (serotype b - including Hib) 

Prior to the "Hib" vaccine this was the most common cause of blood infections and meningitis in children. 

Neisseria meningitidis (meningococcal disease)

Pneumococcal disease is an infection caused by a type of bacteria called Streptococcus pneumoniae. It can cause pneumonia, bloodstream infections, or meningitis.

Wisconsin Invasive meningococcal disease management protocol (PDF, 176 KB)  

streptococcus pneumoniae

A bacterium often found in the nose and throat without causing illness, Streptococcus pneumoniae is most often associated with mild illness, such as ear and sinus "infections. It may also cause life-threatening illness like pneumonia, blood infections, and meningitis. These illness are most common in babies and children under five and the elderly.

Susann Ahrabi-Fard  Epidemiologist
WI Division of Public Health 

Bureau of Communicable Diseases & Emergency Response
(Phone 608-261-6955)  (Fax 608-261-4976)

Last Revised: August 02, 2011