Weather parameters and nosocomial bloodstream infection: a case-referent study.

OBJECTIVE To evaluate if temperature and humidity influenced the etiology of bloodstream infections in a hospital from 2005 to 2010. METHODS The study had a case-referent design. Individual cases of bloodstream infections caused by specific groups or pathogens were compared with several references.

Ecological competition and the incidence of Acinetobacter baumannii bloodstream infections in a teaching hospital in Southeastern Brazil.

Introduction: Recently, pathogen ecology has been recognized as an important epidemiological determinant of healthcare-associated infections (HAIs). Acinetobacter baumannii is one of the most important agents known to cause HAIs. It is widespread in healthcare settings and exhibits seasonal variations in incidence.

Tropical healthcare epidemiology: weather determinants of the etiology of bloodstream infections in a Brazilian hospital.

We studied the influence of weather on the etiology of healthcare-associated bloodstream infections in a hospital in Brazil during the years 2005-2010. Monthly average temperatures were positively associated with higher incidence of gram-negative bacilli as a whole, Acinetobacter baumannii, and Enterobacter species. The same groups presented seasonal behavior in stochastic models.