Influenza is a highly mutated virus and has 4 subdivisions: A, B, C, and D. This agent causes an acute and contagious infection that affects the human respiratory tract, being responsible for epidemics such as H3N2 in 2021. There are unique aspects to how children present with infection that are important to recognize. In addition, children play a significant role in viral transmission within communities. Brazil is no exception, as evidenced by the substantial numbers of cases in the country, disparities among the Brazilian regions were seen. Comparing 2021 with 2020 it is possible to notice an increase of approximately 34% of cases in children in the country.
The interruption of cardiac blood flow by a clot, known as acute myocardial infarction (AMI), results in the death of cells in a specific region of the myocardium and is considered the most serious pathology of coronary syndromes. Besides, the main cause of AMI is atherosclerosis, leading to clot formation and interruption of blood flow. Thereby, the high mortality rate is explained by the increased prevalence of exposure to risk factors. Comparing 2021 with 2020, it is possible to see an increase of approximately 2.16% of cases in adults in the state of Rio Grande do Sul in Brazil.
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