Prevention of COVID-19 superspreading events in buses boarded by presymptomatic cases.

Introduction: COVID-19 superspreader events have occurred when symptomatic individuals without wearing face masks boarded buses.

Objective: To report the risk of superspreader events when presymptomatic individuals boarded buses to-gether with unvaccinated passengers, but with non-pharmacological preventive interventions being maintained.

Methods: Prospec-tive study of health personnel transported in buses to a COVID-19 vaccination center for two weeks.

Surge in Ventilator-Associated Pneumonias and Bloodstream Infections in An Academic Referral Center Converted to Treat COVID-19 Patients.

Background: Healthcare-associated infections (HAIs) are important adverse events that must be prevented.

Objective: The objective of the study was to report and study possible changes in HAI rates as well as their causes after the COVID-19 hospital surge capacity response (HSCR) in an academic referral center.

Methods: This was a before-after observational study.

Factors associated with influenza vaccination acceptance in Mexican healthcare workers: A multicenter cross-sectional study.

Adherence of healthcare workers (HCWs) to influenza vaccination is far from optimal despite its being the most effective intervention for preventing influenza. In order to evaluate factors associated with influenza vaccination acceptance among Mexican HCWs during the 2017-2018 influenza season, a multicenter cross-sectional study spanning public and private hospitals was conducted. Participants were consecutively invited to answer a self-administered questionnaire.

Substantial reduction of healthcare facility-onset Clostridioides difficile infection (HO-CDI) rates after conversion of a hospital for exclusive treatment of COVID-19 patients.

Healthcare facility-onset Clostridioides difficile infection rates substantially dropped in a Mexican hospital after its conversion to a full COVID-19 setting, despite heavy contamination of the environment the previous year. Better adherence to hand hygiene and contact precautions may help explain this finding.