The characteristic of bacterial associations in flu
155 associations of the microorganisms isolated from the healthy people and the patients with flu have been investigated. The method of the cluster analysis was used, allowing to define generality and communication of bacteria in associations. Degree of an associativity of communications of bacteria in associations was defined according to the factor of Zhakkard. Interbacteriemic interactions were investigated with the method of two-dimensional crops of strain-simbiont. In healthy people most closely interconnected coagulasonegative stapfylococci have appeared. In people with flu in cluster of the first order, except stapfylococci, representatives of sorts of Morganella, Klebsiella, Streptococcus have been included. On tonsils of healthy people the contacts between associants were characterised by the expressed contingency, while in the patients with flu associations were distinguished by moderate or weak degree of contingency. In bacterial associations in the patients with flu, in comparison with the healthy ones, intensification of expression of hemolitic activity 4,3 times, and antilysozym activity 10 times has been revealed. The characteristic of bacterial associations taking into account intermicrobic interactions of basic and conditional-pathogenic microflora allows to estimate stability of microsimbiocenosis, to prognosticate difficulty of the course and complications in flu.