Real time monitoring of COVID-19 intervention effectiveness through contact tracing data.

Communities worldwide have used vaccines and facemasks to mitigate the COVID-19 pandemic. When an individual opts to vaccinate or wear a mask, they may lower their own risk of becoming infected as well as the risk that they pose to others while infected. The first benefit-reducing susceptibility-has been established across multiple studies, while the second-reducing infectivity-is less well understood.

SARS-CoV-2 viral load is associated with risk of transmission to household and community contacts.

Background: Factors that lead to successful SARS-CoV-2 transmission are still not well described. We investigated the association between a case's viral load and the risk of transmission to contacts in the context of other exposure-related factors.

Methods: Data were generated through routine testing and contact tracing at a large university.

Differential item functioning in the Mini-Mental State Examination in English- and Spanish-speaking older adults.

The purpose of this study was to determine if the Mini-Mental State Examination (MMS; M. F. Folstein, S.