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.

Report of a Multimodal Strategy for Improvement of Hand Hygiene Compliance in a Latin American Hospital. How Far From Excellence?

Objective: The aim of the study was to report the results of a multimodal strategy for improvement of hand hygiene (HH) compliance in a third-level hospital in Mexico.

Methods: This is an epidemiological study in a public, acute care, academic, tertiary referral center from 2009 to 2019. Healthcare worker (HCW) compliance with HH was assessed after implementation of the World Health Organization multimodal strategy that included permanent and widespread access to alcohol-based hand rubs; educational activities for staff, students, patients, and relatives; reminders in healthcare areas; patient empowerment; water quality surveillance; frequent evaluation of compliance; and feedback.

Significant Rise in SARS-CoV-2 Reinfection Rate in Vaccinated Hospital Workers during the Omicron Wave: A Prospective Cohort Study.

Background: Relatively low SARS-CoV-2 reinfection rates have been reported in vaccinated individuals, but updates considering the Omicron variant are lacking.

Objectives: The objective of the study was to provide a current estimate of the SARS-CoV-2 reinfection rate in a highly immunized population.

Methods: A prospective cohort of Mexican hospital workers was followed (March 2020-February 2022).

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.