Introduction: COVID-19 has been considered the most complex health crisis in the last hundred years. It marked a different era due to its impact on human behavior and society in general. It evidenced the capacity for progress and resistance of human beings in the face of the great challenges that arose.

Objective: to characterize clinically and epidemiologically the patients confirmed with COVID-19 belonging to the health area of the "Edor de los Reyes" polyclinic from January to August 2021.

Method: an observational, descriptive, cross-sectional study was carried out, whose universe consisted of the 676 patients who were positive in the real-time polymerase chain reaction test for COVID-19, with or without symptoms. Variables such as: incidence, age, sex and hospital stay were used. It used the descriptive statistic.

Results: the Jiguaní Sur popular council classified 43.93% of the total confirmed cases as very high risk. The female sex predominated with 51.6% and the most representative age was between 50 and 59 years with 19.8%. 43.9% of the diagnosed patients became infected within the family environment. The most frequent symptom on admission was cough, for 57.4%.

Conclusions: COVID-19 has a high potential for spread. It comprises a symptomatic courtship associated with a high number of sequelae that impair the biopsychosocial development of the individual. The systematic updating of the epidemiological behavior and the analysis of its evolution serve as a guide for the development of health programs.

Introduction: the prevalence of arterial hypertension is related to the presence of risk factors, which act as predisposing elements to the triggering or appearance of the disease.

Objective: to describe the useful theoretical elements on arterial hypertension in childhood and adolescence.

Methods: at the ¨4 de Abril¨ Polyclinic in Guantánamo, between September and December 2021, a narrative review was carried out through searches in electronic databases (LILACS, PubMed, SciELO, Redalyc and Elsevier), original articles and systematic reviews that included information related to arterial hypertension in childhood and adolescence. The Boolean operators AND, OR and NOT were used, as well as the advanced search strategy for the selection of articles. The analysis of the most relevant information was carried out and thus the final report of the review was formed.

Results: the theoretical aspects that support that arterial hypertension in childhood and adolescence is considered a chronic disease, where several risk factors interact, and in which a healthy lifestyle allows control of the disease, were described.

Conclusions: it is revealed that arterial hypertension in childhood and adolescence is an important health problem, with increasing incidence and prevalence, which constitutes a risk marker for suffering from the disease in adulthood.