Iinfluenza and ARI intensity in Bulgaria was low during week No 25 (18.06.2012 -24.06.2012) and the total incidence per 10,000 population was 23.70 (during week No 24  the incidence was 34.74 ). From a total of 380,239 persons under surveillance, belonging to all age groups, a total of 921 ARI cases have been reported (during week No 24  the cases were 1 321 ). The incidence was highest in the age group 0-4 yrs (115.17 per 10,000 population), followed by age group of 5-14 yrs (67.18 per 10,000).