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From 43.574 fluid nasopharynx speciments of the chidren inpatient under six we isolated total 21.769 types bacteria with isolation rate : 49.95%. In which the highest isolation rate for H. influenza, S. pneumoniae and M. catarrhalis were 13,94%; 7,11%; 1,43% respectively. Antimicrobial susceptibility testing shown all the types of for H. influenza, S. pneumoniae and M. catarrhalis good susses to Fosphomycine, S. pneumoniae and M. catarrhalis good susses to Imipenem, H. influenza good susses to Azithromycine, S. pneumoniae good susses to Penicilline and Piperacilline, M. catarrhalis good susses to Tobramycine and Ofloxacine. All of H. influenza, S. pneumoniae and M. catarrhalis were reported resistance to Tri/Sulpha, Chloramphenicol, Erythromycine in high rate.