The main objective of laboratory diagnosis of a diphtheria is identification of the causative agent by means of the minimum quantity of diagnostic tests for obtaining the authentic answer in the most ...short time. One of the major stages is capture and delivery of pathological material on which the efficiency of carrying out and timeliness of issue of the final answer depends. Considering emergence in the market of commercial liquid transport mediums, assessment of their efficiency for diagnosis of diphtheria is advisable. In the real work the pilot studies allowing to predict efficiency of use of the commercial transport liquid medium ∑-Transwab® with the liquid medium of Ames in two systems - with the standard applicator (system 1) and with the thin extended tampon for sampling from narrow cavities - urethral and nazofarengialny are conducted (system 2). In a research used a control toxigenic strain of Corynebacterium diphtheriae of a biovar of gravis No. 665. In an experiment "imitated" operating conditions of the medical organizations for storage of tampons with pathological material on diphtheria before their transportation in laboratory - on a table at the room temperature (6 and 20 hours), in the refrigerator (6 and 20 hours), in the thermostat (6 and 20 hours). After an incubation all tampons sowed the environment for primary crops of pathological material on a blood tellurite agar.. Accounting of results was carried out in 24 and 48 hours of growth. It is established that the commercial transport liquid medium of Ames can be used for capture of pathological material on diphtheria in the second half of the working day at storage in the conditions of the refrigerator. At the same time, it is necessary to consider a tampon form as the best results on a identification of the causative agent of diphtheria have been received when using a universal tampon.
Characteristics of quantitative and qualitative composition of cultured microorganisms isolated from axilla skin of practically healthy individuals.
77 practically healthy individuals aged 18 to 40 ...years were examined. Species identification of microorganisms was carried out byculture-morphologic, tinctorial and biochemical properties using time-of-flight mass spectrometer and rpoB gene amplification with subsequent direct sequencing.
Quantitative evaluation of microbial composition of axilla skin microbiota in most of the practically healthy individuals varied in the 4-5 lg CFU/ml interval, whereas seeding of skin by this microbiota at the level of 8 lg CFU/ml was not detected. 158 strains of 24 microorganism species were identified in this biotope. Most of these strains (68.9%) belonged to Corynebacterium genus, 21.6% of strains--to Staphylococcus genus, 7.6% of strains--to Micrococcus genus and 1.9% of strains--Candida albicans. 16 species of corynebacteria were isolated with predomination of C. tuberculostearicum (40.3%), C. amycolatum (18.4%) and C. ureicelerivorans (14.8%) strains. The microbial landscape in most of the examined individuals (77.9%) was presented by microorganism association.
Quantitative and qualitative species composition of cultured microorganisms isolated from axilla skin biotope of practically healthy individuals was characterized for the first time.
The comparative tests of growth mediums for isolation and accumulation of diphtheria bacteria were implemented. The testing consisted of six series of growth medium "Corynebacagar" produced by the ...state research center of applied microbiology and biotechnology and three series of blood tellurite agar. The concluding results of identification of biological indicators of all series of growth nutrient mediums are presented The "Corynebacagar" is recommended for application in health care practice for primary inoculation of pathological material during implementation of cultural analysis on diphtheria.
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