Iinfluenza and ARI intensity in Bulgaria  was increased during week No 44 (26.10.2015-01.11.2015).   The total incidence  per 10,000 population was 61.67(during week No 43 the incidence was 67.47). From a total of 384 309 persons under surveillance, belonging to all age groups, a total of 2370 ARI cases have been reported (during week No 43 the cases were 2593). The incidence was highest in the age group 0-4 yrs (242.65 per 10,000 population), followed by age group of 5-14 yrs (154.17 per 10,000).