countrywide outbreak in hospitals linked to pre-moistened non-sterile washcloths, Norway, October 2021 to April 2022.

In November 2021, a clonal outbreak of of novel sequence type ST3875 was detected in three patients who died of bloodstream infections in one hospital. By 25 April 2022, the outbreak included 339 cases from 38 hospitals across Norway. Initial hospital reports indicate infection as the main contributing cause in seven deaths.

Quantification of aerosol dispersal from suspected aerosol-generating procedures.

Background: Oxygen-delivering modalities like humidified high-flow nasal cannula (HFNC) and noninvasive positive-pressure ventilation (NIV) are suspected of generating aerosols that may contribute to transmission of disease such as coronavirus disease 2019. We sought to assess if these modalities lead to increased aerosol dispersal compared to the use of non-humidified low-flow nasal cannula oxygen treatment (LFNC).

Methods: Aerosol dispersal from 20 healthy volunteers using HFNC, LFNC and NIV oxygen treatment was measured in a controlled chamber.

In-hospital deaths attributable to healthcare-associated infections.

Background: It is estimated that approximately one-third of in-hospital deaths in Norway are attributable to adverse events, while the proportion caused by infection is unknown. Oslo University Hospital provides a full range of medical specialties on a national and regional level while serving as a local hospital for a population of approximately 300 000. We wished to investigate in-hospital deaths associated with fatal adverse events, and healthcare-associated infections in particular.