Iinfluenza and ARI intensity in Bulgaria was low during week No 26 (24.06.2013 -30.06.2013) and the total incidence per 10,000 population was 29.04(during week No 25 the incidence was 30.40 ). From a total of 381 562 persons under surveillance, belonging to all age groups, a total of  1 108 ARI cases have been reported (during week No 25 the cases were 1 160 ). The incidence was highest in the age group 0-4 yrs (137.62 per 10,000 population), followed by age group of 5-14 yrs (84.92 per 10,000).