Iinfluenza and ARI intensity in Bulgaria was low during week No 25 (17.06.2013 -23.06.2013) and the total incidence per 10,000 population was 30.40(during week No 24 the incidence was 34.57 ). From a total of 381 562 persons under surveillance, belonging to all age groups, a total of  1 160 ARI cases have been reported (during week No 24 the cases were 1 319 ). The incidence was highest in the age group 0-4 yrs (148.96 per 10,000 population), followed by age group of 5-14 yrs (78.60 per 10,000).