Introduction:

Havana city was the most complex territory at the national level facingthe first outbreak of COVID-19. Its condition of capital, the population density, the limited geographical delimitation between its municipalities, the high inter-municipal and inter-provincial flow of people, added to the fact that it is the province that receives the largest number of travelers from abroad, conferred particularities on this territory.

Objective:

To determine the main clinical-epidemiological characteristics of patients affected by COVID-19 living in Havana.

Methods:

An observational, analytical, cross-sectional study was carried out. The sample contained 431 patients, older than one year, with epidemiological discharge from the SARS-CoV-2 infection. To collect information, a questionnaire was applied through an interview.

Results:

The average age of the sample was 45 years. More than half of the cases evolved in a symptomatic way (not serious or serious). Fever was the most frequent clinical manifestation. The individuals included in the sample, with blood group O or with a background of asthma, showed less risk of presenting symptomatic forms of the disease.

Conclusions:

The results suggest that age is the main risk factor for developing symptomatic forms (not severe or severe) of COVID-19. On the contrary, blood group O and a history of asthma are protective factors for these forms of clinical evolution.

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