Objective: To determine viral etiology of acute respiratory infections in older-than-60 adults, living at 4 geriatric care units in Bogota. Methods: The study was performed in two phases: Phase 1: Descriptive prospective study to evaluate incidence of viral respiratory infection during 1 year in old adults. 71 patients, suffering respiratory diseases, were selected, and evaluated, including physical exploration, thorax X-ray, and collection of respiratory samples for analysis. In order to detect Adenovirus, VSR, influenza A y B, parainfluenza 1-3 and Rhinovirus, direct immunofluorescence and polymerase chain reaction. Phase 2: demographic, medical and physical findings were collected, data-based, and analyzed in SPSS19, and risk factor of these variables was analyzed through Odds Ratio association measurements. Results: Viral etiology was documented in 33,8% Cases. VSR was the most common virus associated to the disease; positive samples were documented in 8,5%, followed by rhinovirus 7,0%. Conclusions: Results suggest that respiratory viral infections are at a great extent sub-diagnosed in old individuals living in community.