**5. Conclusions**

COVID-19 has a pronounced impact on society, mainly due to its repercussions on global health. Despite the various studies worldwide on pathophysiology, signs and symptoms, complications, and the best therapeutic option, the research is ongoing.

A persistence of symptoms for months has been observed in patients who had previously recovered from the disease. It was called prolonged COVID. The most frequent symptoms that persist are dyspnea, headache, dysgeusia, problems in the pattern of sleep, psychological problems—such as brain fog, anxiety, and depression. There are still vast unknowns, like how long residual post-COVID symptoms last and if they permanently affect the quality of life. Some authors comment that these symptoms decrease with time, a symptomatic treatment, and sometimes with the need for rehabilitation. In the reviewed literature, we did not find any other perspective to address the complications of COVID-19, in Mexico, besides the application of available treatments.

Since COVID is a disease that mainly affects the respiratory tract, its main complications are found in the lungs, taking into account the importance of comorbidities, which are considered the chief risk factor for the development of these, including patients with diabetes, hypertensive, or some cardiac pathology.
