This study aims to identify and evaluate the main perceptions, attitudes, and knowledge about Covid-19 vaccination of three at-risk groups: teachers, health professionals and older adults.

In many countries, the incidence, prevalence, and mortality rates of the covid-19 virus have disproportionately affected non-white people, but there is a lack of published data explaining this phenomenon. Are admissions to intensive care units proportional among white and black people? Are physicians more likely to, unknowingly, pay more attention to white patients and therefore be more likely to offer them life-saving intensive care treatment?

This study explored mental health outcomes in 640 Portuguese adults from three different groups (SARS-CoV-2 survivors, individuals who were tested but had negative results, and individuals who were never tested).