Background Whole-genome sequencing (WGS) has been used widely to elucidate
transmission of SARS-CoV-2 in acute healthcare settings, and to guide Infection, Prevention …

Background Although case reports have described relapses of glomerular disease after
COVID-19 vaccination, evidence of a true association is lacking. In this population-level …

Importance Quantifying the burden of nosocomial SARS-CoV-2 infections and associated
mortality is necessary to assess the need for infection prevention and control measures …

Since the end of 2019, the world has been challenged by the coronavirus disease 2019
(COVID-19) pandemic. With COVID-19 cases rising globally, severe acute respiratory …

Background: Viral sequencing of SARS-CoV-2 has been used for outbreak investigation, but
there is limited evidence supporting routine use for infection prevention and control (IPC) …

Background Epidemics of COVID-19 strained hospital resources. We describe temporal
trends in mortality risk and length of stays in hospital and intensive care units (ICUs) among …

Abstract Wastewater‐based SARS‐CoV‐2 surveillance enables unbiased and
comprehensive monitoring of defined sewersheds. We performed real‐time monitoring of …

Background Data on the effectiveness of the 3-dose mRNA-1273 primary series are limited,
particularly in comparison to 2 doses. Given suboptimal COVID-19 vaccine uptake among …

SARS-CoV-2 infection causes a wide spectrum of disease severity. Identifying the
immunological characteristics of severe disease and the risk factors for their development …

Importance There have been few studies on the heterogeneous interconnection of COVID-
19 outbreaks occurring in different social settings using robust, surveillance epidemiological …