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Introduction Studies show a high prevalence of physical inactivity and sedentary behavior among university students. However, the relationship between physical activity and sedentary behavior in medical students is unknown. Objectives To determine the prevalence of physical activity, sedentary behavior, and related factors among medical students at a public university. Methods We conducted an analytical cross-sectional study that included students from the first to the sixth year of medical school. We used the International Physical Activity Questionnaire (IPAQ). We analyzed study variables using Poisson regression, estimating crude and adjusted prevalence ratios. Results The final sample consisted of 513 students, of which 35% of women and 30.1% of all pre-clinical students had a low level of physical activity. Male sex and 20 to 24 age group were associated with a lower prevalence of low level of physical activity. Sedentary behavior was 60.9% among students under 20 years old and 55.5% among pre-clinical students. A lower prevalence of sedentary behavior was found in students over 25 years old, clinical students, and those with high levels of physical activity. Conclusion Most medical students presented a moderate level of physical activity. We found a higher presence of low-level physical activity among females and pre-clinical students. We found that sedentary behavior was higher than reported in similar populations. The relationship between physical activity and lower sedentary behavior was significant only for students with a high-level physical activity.

The purpose of the study was to describe the experiences of teachers in the distance teachinglearning process in early childhood education during the covid-19 pandemic. The methodology used was qualitative descriptive. Interviews were conducted with thirteen teachers from four state educational institutions at the infant level in Lima city through the virtual platform. As a result of the data analysis, five subcategories emerged: Emotions in remote teaching at the beginning of the school year during the pandemic, communication between teachers and families for student learning, management and adaptation of remote teaching-learning, be a teacher of childhood education during the pandemic, and accompaniment in the teaching-learning process. In conclusion, the distance teachinglearning experience of teachers at the beginning of the COVID-19 pandemic is characterized by the presence of certain negative emotions and attitudes towards their educational work; however, self-training on digital and computer resources and empathy with families have improved the generation of learning situations in children.

RESUMENEl objetivo del estudio fue determinar la frecuencia de marcadores de infección para hepatitis B, hepatitis C y conocer los factores asociados en los donantes de sangre. El estudio se realizó con datos del registro de donantes de un hospital público de Lima. De 28 263 sujetos analizados entre 2012 y 2015, el 0,6% (n=156) fue reactivo para HBsAg; 5,2% (n=1465) para anti-HBc, y 0,8% (n=232) para Anti-HVC. Los resultados positivos para HBsAg (p=0,319) y anti-HVC (p=0,037) fueron en mayor proporción en los donantes voluntarios. Los resultados positivos para HBsAg y anti-HBc fueron en mayor proporción en las personas de 50 a más años de edad. Los donantes voluntarios fueron en mayor proporción en los sujetos menores de 20 años (p<0,001). En conclusión, la reactividad a los marcadores de infección para hepatitis está asociado a la donación voluntaria y al grupo de edad de los donantes. Palabras clave: Hepatitis B; Hepatitis C; Donantes de sangre (Fuente: DeCS, BIREME). VIRAL HEPATITIS INFECTION MARKERS AMONG BLOOD DONOR IN A NATIONAL HOSPITAL OF METROPOLITAN LIMA ABSTRACTThe aim of the study was to determine the frequency of infection markers for hepatitis B and hepatitis C and to identify associated factors in blood donors. The study was carried out using data obtained from blood donor medical records collected in a public hospital in Lima. Of 28,263 individuals analyzed between 2012 and 2015, 0.6% (n=156) were reactive for HBsAg; 5.2% (n=1,465), for anti-HBc; and 0.8% (n=232), for anti-HVC. Positive results for HBsAg (p=0.319) and anti-HVC (p=0.037) were more common in voluntary donors. For HBsAg and anti-HBc, positive results were more common in individuals aged 50 years or older. The number of voluntary donors was higher among individuals younger than 20 years (p<0.001). The study indicates that reactivity to hepatitis infection markers is associated with voluntary donation and the age group of blood donors. Key words: Hepatitis B; Hepatitis C; Blood donors (Source: MeSH, NLM). INTRODUCCIÓNLa hepatitis viral, una pandemia silenciosa que genera una enorme carga para los sistemas de salud, es la octava causa de mortalidad en todo el mundo. Se estima que cada año ocasiona 1,4 millones de muertes por infección aguda, cáncer hepático y cirrosis relacionadas con la hepatitis, de los cuales el 55 % son atribuidos al virus de la hepatitis B (VHB) y el 35% al virus de la hepatitis C (VHC) (1) . A nivel mundial, se estima que 2000 millones de personas están afectadas por el VHB, de ellas, 240 millones padecen infección hepática crónica por el VHB y corren el riesgo de fallecer por cirrosis o carcinoma hepatocelular, enfermedades que, se calcula, provocan de 500 000 a 700 000 muertes por año en el mundo (2) .La prevalencia del VHB es variable según las regiones, se estima de 5 a 8% en África y de 2 a 4% en Sudamérica (2)

Objectives: Describe the clinical characteristics and home care of patients diagnosed with COVID-19 in a Primary Healthcare Facility of the "Mi Peru" district, in the Callao Region, Peru. Materials and methods: Observational and descriptive cross-sectional study. A total of 84 subjects with positive results for Rapid Test IgM / IgG or molecular test (RT-PCR) participated. Results: Of the sample, 59.5% (n=50) were males, 60.7% (n=51) aged 30 to 59 years and 21.4% (n=18) aged 60 to over of age, 67.9% (n=57) were positive on the rapid test and the rest on the molecular test. Diabetes and high blood pressure were the main pathological antecedents. Among the most frequent clinical manifestations were general malaise, fever and cough, with 40.5% (n=34), 36.9% (n=31) and 31% (n=26), respectively. The most frequently prescribed medications were acetaminophen and azithromycin, 25% (n=21), and 21.4% (n=18), respectively. Regarding home monitoring of patients diagnosed with COVID-19, the first week was performed with a higher proportion of those affected, progressively decreasing in the second week. Conclusions: Evidence of an important response to COVID-19 is shown in the scenario of the first level of care. Mild and moderate cases can be treated outpatient and complemented with home monitoring, contributing to the containment of the pandemic.