Iinfluenza and ARI intensity in Bulgaria was low during week No 28 (08.07.2013 - 14.07.2013) and the total incidence per 10,000 population was 30.06(during week No 27 the incidence was 25.16 ). From a total of 381 562 persons under surveillance, belonging to all age groups, a total of  1 147 ARI cases have been reported (during week No 27 the cases were 960). The incidence was highest in the age group 0-4 yrs (154.89 per 10,000 population), followed by age group of 5-14 yrs (83.02 per 10,000).