Assessing the risk of COVID-19 reinfection and severe outcomes among individuals with substance use disorders: a retrospective study using real-world electronic health records
Objective Despite advancement in vaccines and treatments for COVID-19 over the past 2 years, many concerns remain about reinfection and waning immunity against COVID-19 and its variants, especially among people with substance use disorder (SUD). The study ass…
Introduction
The COVID-19 pandemic has led to unprecedented public health challenges in the USA, especially for individuals experiencing drug abuse and addiction problems.1 2 Lacking access to scree…