During the week No 15 (11.04.2022 - 17.04.2022) the intensity of ARI and influenzа in Bulgaria is decreasing by comparison with the previous week (04.04.2022 - 10.04.2022) . The total incidence per 10,000 population was 64,65 (during week No 14 the incidence was 72,61). From a total of 364 882 persons under surveillance, belonging to all age groups, a total of 2359 ARI cases have been reported (during week No 14 the cases were 2758). The incidence was highest in the age group 0-4 yrs (323,13 per 10,000 population), followed by age group of 5-14 yrs (174,15 per 10,000 population).Weekly data for two regions(Sofia -oblastl and Targovishte) - not entered in the system as yet. The NRL "Flu and ARI"/NCIPD reported 2 positive samples for influenza А/H3N2 within week No 15 .