Streptococcus viridans: characterization pakati nayo utachiona uye utachiona

Tusingaoneki vose dzakatikomberedza uye kugara muviri wedu, sezvo chinhu chinokosha uye nyika takawanda. Zvisinei, havasi vose vane ngozi utano hwedu, nekusiyana, avo utachiona anoumba chakaipa Maruva siyana kwevanhu nhengo, kudzivisa mutorwa utachiona uye kudzivisa panowanikwa zvirwere. Uyezve, chinhu chinokosha kudzivirirwa ndiyo zvirwere, asi kana zviri kuderera kunyange conditionally pathogenic kasvisto zvinogona kukonzera zvirwere. Mumwe wavo chakajeka vamiririri streptococcus viridans, izvo dzichakurukurwa.

chikuru mashoko

Zvikasadaro vachinzi "strep zelenyaschy", izvi ndizvo zvinoitika anogaramo nomumukanwa yevanhu mhango, umo vemunyika pameno uye mazino, uye kazhinji anova chikonzero mazino caries. Izvi imhaka ari maumbirwo streptococcus viridans ane pamusoro mapuroteni kuti inokwanisa tichisunga nemate uye nokudaro vasiyana zino. A sucrase kubvuma zvokudya nayo anomuchinja kuva lactic acid, akaipa enamel. zita rayo kunakidza akagamuchira apo bacteriological kudyara pamusoro yakaorera Munda ropa nemhaka Hagari utachiona izvi zvinoumba akapoteredza zvavo nyuchi zelenyaschy mapazi ose hemolysis. Zvisinei, pane dzimwe mapoka ichi hemolytic streptococci (hemolyzed zvachose mamiriro ezvinhu) uye non-hemolytic (haemolytic vane makemikari). In tichienzanisa streptococcus boka rokutanga viridans haana ngozi muviri uye vane ndoda virulent. Zvisinei, pamwe kwakaderera kutapata, vari kushingaira vachiwedzera uye kuva pathogenic chaizvoizvo, zvichikonzera mikana utachiona, uye kwete nguva dzose nyore.

zvidukuduku

Zvino ngatitarisei muudzame chii streptococcus viridans. Kana isu nezvazvo utachiona izvi kubva microbiological nemaonero, vari idenderedzwa kana ovoid giremu positive cocci, regai kuumba spores. Nderake boka facultative anaerobes uye zvinosanganisira mhuri Streptococcaceae. Kuti uzive kuti akaita streptococcus viridans, chii, tarisa muchiedza maikorosikopu. Saka unogona kuona kuti vakawanda vavo vari yakarongwa vaviri vaviri kana kuenda kumaketeni, asi vanoramba mira. Ndivo ngozi yedu rokuzvidzivirira iri pakuti vanogona kuumba Kamudzira kuti anovadzivirira kubva phagocytosis achishandisa unyanzvi hwakasiyana masero ropa, uye zviri nyore kuti mudzoke kunyika ine L-chimiro, saka kusachinja, uye saka anogona refu achihwanda zvakamisa hurongwa yedu kudzivirira hurongwa.

Kudyara uye virulence

Nutrient zvinodiwa mabhakitiriya izvi, kusiyana staphylococci, muri zvikuru kunzwisisa. Vanokura zvakanaka chete idzodzo runyararo umo pakugadzirira ropa rose kana serum, sezvo ivo hazvo vanoda makabhohaidhiretsi kuti simba zvaishandiswa. Ndokusaka vakawanda bacteriological seeding viridans streptococci akashandisa ropa Hagari. Munguva kwokunze kwezvakatipoteredza, vari kugadzikana chaizvo, nokuti, somuenzaniso, pamusoro akaomeswa chaivo zvinhu (ropa, pus, sputum), vanogona kuramba chinhanho zvavo kwemwedzi inoverengeka. Pasteurization, disinfection, Vanofa, asi kwete pakarepo. Saka, kana neshungu kuti tembiricha 60 Celsius rufu rwavo chete kunoitika muna hafu yeawa, uye kushandisa des. pfuma - mumaminitsi 15.

epidemiology

Chokwadi kuti pakati zvatinosiita microflora muviri womunhu, pamwe utachiona zhinji, anopinda uye streptococcus viridans - zvaigara. Zvisinei, ichi chete zvinoshanda imwe nhamba utachiona ayo, uye kukasawedzerwa unogona kubva vanhu utachiona, kureva vatakuri streptococci kana kare kutapukirwa mumwe siyana chirwere (kwazvo huro, nezvitsvuku fivha, mabayo, nezvimwewo). Varwere vakawanda ngozi pamwe repamusoro kufema turakiti zvirwere, nokuti emit zvikuru streptococci mune zvakatipoteredza. Nokudaro, mukuru nzira chirwere - kuenda neherikoputa, kureva, nokutaura, sneezing, vangakosora, kutsvodana, etc. mune zvimwe zviitiko zvekare (Mishonga) uye kuonana (maoko tsvina) zvichibvira muviri. Zvinozivikanwa kuti vazhinji boka A streptococci anogona kuramba kuramba kwavo virulence ehupfumi neVadzidzi zvigadzirwa, zviri kwavari, mune chokwadi, yakanaka zvakatipoteredza. Izvi zvinosanganisira mazai, mukaka, ham uye dzemugungwa.

yematambudziko

Anotyisidzira zvikuru chirwere kunokonzerwa viridans uye vasiri hemolytic streptococci, ndiye infective endocarditis. Chokwadi kuti kuwa mukati vemo, uye ipapo systemic riparadzirwe kana kukuvadzwa nomumukanwa mucosa (matadza, rurimi) chikwesheso kana floss stomatitis streptococcus viridans. Kutaura mwoyo, vanogona kuva vasiyana mavharuvhu uye nyuchi navo. Zvanzi anovandudza chirwere. Rinotanga, sezvinoita mutemo, nevakawanda zviratidzo: simba, zvakawanda zvive, fivhiri. Izvi imhaka zvikurukuru chokwadi kuti kazhinji zvakunokonzera mwero kana slabovirulentnye utachiona.

Clinic uye zvaitika

Kana mhaka infective endocarditis vari zvikuru noutachiona, chirwere kunotanga acutely uye akaperekedza febrile tembiricha, kusvikira makumi mana inegumi. Muchiitiko ichi pane kufanana tsandanyama uye kurwadza kwemajoini, uye auscultation akanzwa mwoyo kutsutsumwa. The ngozi chirwere ichi ndiko kuparadzwa endocardium, i.e. pakuonekwa deformation vharuvhu kwemabhakitiriya vegetations pamusoro pavo. With yokuzviparadzanisa yavo anovandudza microbial embolism midziyo, zvichitungamirira yomwoyo uye shamhu. Mukuwedzera, aneurysm zvingaite arteries makuru, pfungwa pute, yomumuzongoza, encephalopathy uye mwoyo nokukundikana.