Iinfluenza and ARI intensity in Bulgaria  was low during week No 19  (04.05.2015-10.05.2015).   The total incidence  per 10,000 population  decreased and was 42.59 (during week No 18 the incidence was 48.21). From a total of 384 354 persons under surveillance, belonging to all age groups, a total of 1637 ARI cases have been reported (during week No 18 the cases were 1853). The incidence was highest in the age group 0-4 yrs (174.26 per 10,000 population), followed by age group of 5-14 yrs (113.61 per 10,000).