During the week No 10 (07.03.2022 - 13.03.2022)  the intensity of ARI and influenzа in Bulgaria is increasing by comparison with  the previous week (28.02.2022 - 06.03.2022). The total incidence per 10,000 population was  76,74 (during week No 9 the incidence was 63,92). From a total of  379 716 persons under surveillance, belonging to all age groups, a total of  2914 ARI cases have been reported (during week No 9 the cases were 2427). The incidence was highest in the age group 0-4 yrs (298.07 per 10,000 population), followed by age group of 5-14 yrs (232,30 per 10,000 population).  The NRL "Flu and ARI"/NCIPD  reported  2 positive samples for influenza А/H3N2  within week No 10 .