Reference:
Kampf, G. (2021). The epidemiological relevance of the COVID-19-vaccinated population is increasing. The Lancet Regional Health – Europe, 11, 100272. https://doi.org/10.1016/j.lanepe.2021.100272
Summary:
High COVID-19 vaccination rates were anticipated to diminish SARS-CoV-2 transmission; however, recent findings suggest the opposite. In the UK, secondary attack rates among household contacts exposed to fully vaccinated individuals were similar to those exposed to unvaccinated individuals. In Germany, the proportion of symptomatic COVID-19 cases among fully vaccinated individuals over 60 years rose significantly, from 16.9% to 58.9% within a few months. Data indicates that fully vaccinated individuals can still transmit the virus, as evidenced by outbreaks linked to vaccinated individuals in healthcare settings. The CDC has noted that many counties with high vaccination rates still experience significant virus transmission. This raises concerns about public health strategies that exclude vaccinated populations as sources f transmission, highlighting the need for inclusive public health measures.