Iinfluenza and ARI intensity in Bulgaria  was low during week No 39 (21.09.2015-27.09.2015).   The total incidence  per 10,000 population was 29.11(during week No 38 the incidence was 31.43). From a total of 384 354 persons under surveillance, belonging to all age groups, a total of 1119 ARI cases have been reported (during week No 38 the cases were 1208). The incidence was highest in the age group 0-4 yrs (167.87 per 10,000 population), followed by age group of 5-14 yrs (68.76 per 10,000).