Iinfluenza and ARI intensity in Bulgaria  was low during week No 38 (14.09.2015-20.09.2015).   The total incidence  per 10,000 population was 31.43(during week No 37 the incidence was 28.41). From a total of 384 354 persons under surveillance, belonging to all age groups, a total of 1208 ARI cases have been reported (during week No 37 the cases were 1092). The incidence was highest in the age group 0-4 yrs (164.19 per 10,000 population), followed by age group of 5-14 yrs (67.27 per 10,000).