Burkholderia cepacia complex (BCC), or simply Burkholderia cepacia is a group of catalase-producing, lactose-nonfermenting, Gram-negative bacteria which most often causes pneumonia in immunocompromised individuals with underlying lung disease (such as cystic fibrosis or chronic granulomatous disease)

Although co-trimoxazole has been generally considered the drug of choice for B. cepacia infections, ceftazidime, doxycycline, piperacillin and meropenem are considered to be viable alternative options in cases where co-trimoxazole cannot be administered because of hypersensitivity reactions, intolerance or resistance.

Limb lesions due to Burkholderia pseudomallei are usually in the form of subcutaneous cellulitis following skin abrasions.

E. coli

Urinary tract infections are the most common bacterial infections encountered during pregnancy, and Escherichia coli is the most commonly isolated organism. 70% of cases in the U.S. are caused by P pili-positive strains.

Bundle-forming pili are found in enteroaggregative E. coli (EAEC).

GVVPQ fimbriae are found in EAEC.

Heat labile toxins are pathogenic factors in enterotoxic strains (ETEC).

Heat stable toxins are pathogenic factors in ETEC or EAEC.