About 579,372 absolutely vaccinated people participated within the research, of which 30,183 with a prognosis of SUD. The volunteers have been vaccinated between December 2020 and August 2021, and had not contracted the an infection previous to vaccination.
The risk of breakthrough an infection amid SUD sufferers went from 6.8 % for tobacco use dysfunction to 7.8 % for hashish customers. The proportion was considerably larger to the non-SUD inhabitants, which was 3.6 %.
As per the research, “These data suggest that fully vaccinated SUD individuals are at higher risk for breakthrough COVID-19 infection, and this is largely due to their higher prevalence of comorbidities and adverse socioeconomic determinants of health compared with non-SUD individuals.”