The incidence rate of influenza is intensifying in Spain, already affecting 105.9 people per 100,000 inhabitants, according to the latest report from the Flu Surveillance System of the Carlos III Health Institute, relative to the week of 6 to 12 January.
At the national level, the level of intensity of influenza activity is low, although the level of diffusion is extensive and the evolution is increasing. For now, the flu is affecting all age groups, although its incidence is lower among those over 64.
By autonomous communities, Asturias and Navarra register a medium intensity level, being low in the rest of the regions, except in the Balearic Islands, Catalonia, Extremadura and Melilla, which is still at baseline as it has not reached its threshold established for this season. Also, the diffusion is extensive or local in most of Spain, except in Andalusia, Catalonia and the Valencian Community, which is sporadic, and void in Melilla. The evolution is growing, except in the Balearic Islands, Catalonia and Melilla, which remains stable.
Since the beginning of the 2019-20 season, only an outbreak of influenza caused by the non-subtyped influenza A virus has been reported and has affected a socio-health center for neurological patients, with an average age of about 56 years.
Since the beginning of the season, hospitalized cases of influenza have been reported in 16 autonomous communities, with a rate of 5.9 cases per 100,000 inhabitants. The highest proportion of cases is registered in the group of more than 64 years (40%), followed by the group of 15 to 64 years (37%).
Of all of them, 80 percent had risk factors for flu complications. Specifically, in adults the most prevalent risk factors are chronic cardiovascular disease
a (32%), chronic lung disease (27%) and diabetes (26%), and in those under 15 years chronic lung disease (11%), chronic cardiovascular disease (11%) and immunodeficiency ( 6%) 79 percent of patients developed pneumonia and 32% admitted to the ICU. .