Klebsiella pneumoniae and Klebsiella quasipneumoniae define the population structure of blaKPC-2Klebsiella: a 5 year retrospective genomic study in Singapore.

Objectives: To describe the population structure, molecular epidemiology and genetic context of blaKPC-2-bearing Klebsiella pneumoniae.

Methods: Isolates (n = 157) were retrospective, phenotypically carbapenem-resistant blaKPC-positive K. pneumoniae, collected from public hospitals.

Airflow dynamics of coughing in healthy human volunteers by shadowgraph imaging: an aid to aerosol infection control.

Cough airflow dynamics have been previously studied using a variety of experimental methods. In this study, real-time, non-invasive shadowgraph imaging was applied to obtain additional analyses of cough airflows produced by healthy volunteers. Twenty healthy volunteers (10 women, mean age 32.