Iinfluenza and ARI intensity in Bulgaria was low during week No 23 (04.06.2012 -10.06.2012) and the total incidence per 10,000 population was 38.34 (during week No 22 the incidence was 38.71 ). From a total of 380,239 persons under surveillance, belonging to all age groups, a total of 1 458 ARI cases have been reported (during week No 22  the cases were 1 472 ). The incidence was highest in the age group 0-4 yrs (203.30 per 10,000 population), followed by age group of 5-14 yrs (99.85 per 10,000).