Iinfluenza and ARI intensity in Bulgaria  was increased during week No 46 (09.11.2015-15.11.2015).   The total incidence  per 10,000 population was 102.47(during week No 45 the incidence was 95.59). From a total of 384 309 persons under surveillance, belonging to all age groups, a total of 3943 ARI cases have been reported (during week No 45 the cases were 3670). The incidence was highest in the age group 0-4 yrs (486.86 per 10,000 population), followed by age group of 5-14 yrs (259.28 per 10,000).