Bacteremia by colistin-resistant Acinetobacter baumannii isolate: a case report.

Background: Carbapenem-resistant Acinetobacter baumannii infections are a major public health problem worldwide, requiring the use of "old" antibiotics such as polymyxin B and E (colistin). However, there is concern regarding the emergence of isolates resistant to these antibiotics.

Case Presentation: We report a case of a 64-year-old mestizo man hospitalized in an intensive care unit of a health institution in Colombia with identification and clinical and molecular typing of a colistin- and carbapenem-resistant A.

Acute liver failure complication of brucellosis infection: a case report and review of the literature.

Background: Brucellosis is one of the most widespread zoonoses worldwide. It can affect any organ system, particularly the gastrointestinal system, but there is no report of acute liver failure as a brucellosis complication.

Case Presentation: We present a case of acute liver failure secondary to brucellosis infection.