Comparison of capillary blood and plasma samples for the evaluation of seroprevalence to SARS-CoV-2 antibodies by lateral flow immunoassay in a university population in Medellín, Colombia, 2020.

Objectives: The aim of this study was to estimate the seroprevalence of anti-SARS-CoV-2 antibodies using the SARS-CoV-2 antibody test in a university population. Capillary blood and plasma samples were compared and correlated with symptomatology to establish rapid treatment processes and develop a public health strategy within the community.

Study Design: Descriptive study of seroprevalence of anti-SARS-CoV-2 antibodies in a university population.

Reverse smokers's and changes in oral mucosa. Department of Sucre, Colombia.

Objectives: This work is intended to establish the prevalence of reverse smokers at the villages of Hato Nuevo, San Francisco and Cayo de Palma, Department of Sucre, Colombia, characterizing their socio-culture conditions, clinical and histological changes in the oral mucosa.

Design Of Study: A descriptive study was done through a home to home inquiry to select the people with inclusion criteria for a posterior clinical test and a biopsy of the affected oral mucosa.

Results And Conclusions: Reverse smokers's prevalence was from the 15%, mainly women (p<0.