Background Large mortality rates have been reported in the Mexican public health system, however in the experiences of private hospitals that have resources and infrastructure this is lower compared to the national average. Methods Descriptive and retrospective study. Adult patients treated for pneumonia due COVID-19 from April to December 2020 are entered into the study. Its general characteristics such as gender and age, comorbidities, influenza vaccination history, clinical characterization, laboratory and tomographic diagnosis of sars cov2 pneumonia are studied, as well as the drug and oxygen therapy treatments received and finally, its evolution and clinical outcome.