Findings Associated With Prolonged COVID-19 Recovery Among Boston Healthcare Workers.

Objective: This study aimed to evaluate the long-term, symptomatic recovery of healthcare workers from acute COVID-19 infections up to 3 years after the initial COVID-19 outbreak.

Methods: A cross-sectional study was performed among employees of a community-based healthcare system in Massachusetts who had a recorded positive COVID-19 test. Survey responses were collected between September 2022 and January 2023.

Evolving SARS-CoV-2 severity among hospital and university affiliates in Spain and Greater Boston.

Introduction: The COVID-19 pandemic caused by the SARS-CoV-2 virus greatly affected healthcare workers and healthcare systems. It also challenged schools and universities worldwide negatively affecting in-person education. We conducted this study is to assess the evolution of SARs-CoV-2 virulence over the course of the pandemic.

Continued effectiveness of COVID-19 vaccination among urban healthcare workers during delta variant predominance.

Background: Data on COVID-19 vaccine effectiveness (VE) among healthcare workers (HCWs) during periods of delta variant predominance are limited.

Methods: We followed a population of urban Massachusetts HCWs (45% non-White) subject to epidemiologic surveillance. We accounted for covariates such as demographics and community background infection incidence, as well as information bias regarding COVID-19 diagnosis and vaccination status.

SARS-CoV-2 antibody seroprevalence after the first wave among workers at a community healthcare system in the Greater Boston area.

SARS-CoV-2 antibody seroprevalence among health-care workers (HCW) can assess past exposure and possible immunity, which varies across different regions, populations and times. We investigated the seroprevalence among HCW in Massachusetts (a region suffering high COVID-19 mortality) at the end of first wave of the SARS-CoV-2 pandemic. All HCW at Cambridge Health Alliance were invited to participate in this cross-sectional survey in June 2020.