Carbapenemase-producing Enterobacterales in hospital drains in Southern Ontario, Canada.

Background: Hospital drains may be an important reservoir for carbapenemase-producing Enterobacterales (CPE).

Aim: To determine prevalence of CPE in hospital drains exposed to inpatients with CPE, relatedness of drain and patient CPE, and risk factors for drain contamination.

Methods: Sink and shower drains in patient rooms and communal shower rooms exposed to 310 inpatients with CPE colonization/infection were cultured at 10 hospitals.

[Agglutinins in the diagnosis of pertussis].

The performed investigation showed that the results of agglutination test in diagnostics must be explained with reserve as a supplement to the clinical picture and the other laboratory findings. Titre must be followed at least for 20 days on many blood samples. The more reliable diagnosis according to agglutination test can be given only if we know in question is a nonimmunized child and titre is > or = 1:80.