I-Streptococcus viridans: iimpawu ze-pathogen kunye nosulelo

Ii-microorganisms zisijikeleze kuyo yonke indawo kwaye zihlala emzimbeni wethu, ziyingxenye ebalulekileyo kunye nehlabathi lonke. Nangona kunjalo, akuzona zonke eziyingozi kwimpilo yethu, ngokuchaseneyo, ezo bhaktheriya ezenza i-microflora eziqhelekileyo zamalungu oluntu, zichasene nezilwanyana ezingaphandle kwaye zikhusele ukuvela kwezifo. Ukongezelela, ikhonkco ebalulekileyo ekukhuseleni sisistim somzimba, kodwa ngokusilela kwayo, nokuba i-flora engokwemvelo ingabangela izifo. Omnye wabameli bawo abaqaqambileyo yi-streptococcus viridans, eza kuxoxwa ngazo.

Ulwazi oluyisiseko

Ngaphandle kokuthiwa yi "streptococcus eluhlaza," lo ngumhlali oqhelekileyo emlonyeni womntu, apho ukhona kumazinyo nangamazinyo kwaye ngokuqhelekileyo kubangelwa ukubola kwezinyo. Oku kungenxa yokuba isakhiwo se-streptococcus viridans sineprotheni ekhethekileyo yomhlaba ekwazi ukubopha umquba kwaye ngokunjalo iqhotyoshelwe kwizinyo. Yaye xa ufumana ushukela ngokutya, uguqula ube yi-lactic acid, i-coam eamel. Wafumana igama lakhe elithakazelisayo kuba xa i-bacteriological ityala kuyo kwi-nutrient medium ye-agar yegazi, ezi bhaktheriya zenza indawo yokuluhlaza i-hemolysis kwindawo yayo. Nangona kunjalo, kukho amanye amaqela, i- hemolytic streptococci (ngokupheleleyo i-hemolyzing environment) kunye ne-nonhemolytic (ayinayo i-enzyme ye-hemolytic). Xa kuthelekiswa neqela lokuqala le-streptococcus, ii-viridans aziyingozi kakhulu kumzimba womntu kwaye zincinci kakhulu. Nangona kunjalo, xa ukhuseleko lukhunjulwa, luyandisa ngokuphindaphindiweyo kwaye lusebenzise umthelela we-pathogenic, lubangele izifo ezichaphazelekayo, kwaye kungekhona lula ukuhamba.

Microbiology

Ngoku makhe sijonge ngakumbi kwii-streptococcus viridans. Ukuba sithetha ngala mabhaktheriya kwindlela yokujonga i-microbiological, i-globose okanye i-ovoid i-co-acci e-Gram-positive engenzi i-spore. Baye kwiqela le-anaerobes yokuzibandakanya kwaye ba ndakanya intsapho iStraptococcaceae. Ukufumanisa ukuba i-streptococcus viridans ibonakala njani, yintoni na, jonga nje kwi-microscope elula. Ngoko unokubona ukuba amaninzi amaninzi ahlala kumabini okanye ahlanganiselwe emaketeni, kodwa ahlala ephazamisekile. Ingozi yabo ekukhuselweni kwethu kukuba banako ukudala i-capsule ekhusela kwi-phagocytosis ngamaseli ekhethekileyo egazi, kwaye iyakwazi ukujika ibe yifom ye-L, ngoko iguqule, kwaye ngoko unako ukufihla ixesha elide kwiinkqubo zokhuseleko lwethu.

Ukuhlwayela kunye nobuthathaka

Iimfuno zesondlo zale bhaktheriya, ngokungafani ne-staphylococci, zinzima kakhulu. Ziyakhula kakuhle kuphela kuloo mimandla ekulungiseleleni igazi elipheleleyo okanye whey isetyenzisiweyo, kwaye nazo zidinga i-carbohydrates yokutya. Yingakho ixhaphaka kakhulu kwi-bacteriological plant of streptococci i-agar yegazi. Kwimeko yangaphandle, zizinzile, ngoko ke, umzekelo, kwi-biomaterials ezomileyo (igazi, i-pus, sputum), zinokuhlala zikwazi ukuhlala ezinyangeni eziliqela. Xa zixhaswe, zifakwe i-disinfected, ziyafa, kodwa kungekudala. Ngoko, xa bevutha ukushisa kwama-degrees Celsius angama-60, ukufa kwabo kwenzeka kuphela emva kwesigama seyure, kwaye xa usebenzisa ii-des. Iimali - kwi-15 imizuzu.

Epidemiology

Inyaniso yokuba phakathi kwe-microflora yesiqhelo yomzimba womntu, kunye neebhaktheriya ezininzi, ziquka kunye ne-streptococcus viridans-isisiseko. Nangona kunjalo, oku kuxhalaba kuphela umlinganiselo othile woxinzelelo lwawo, kwaye unokuzaliswa kubantu abasulelekileyo, oko kukuthi, abathwali be-streptococci okanye sele sele besuleleke kwiindlela ezahlukeneyo zokusuleleka (i-tonsillitis, i-red fever, i-pneumonia, njl. Kule meko, izigulane eziyingozi kakhulu ezineentsholongwane zokuphefumula, njengoko zikhulula kakhulu i-streptococci kwimeko. Ngako ke indlela ephezulu yokusuleleka yintsholongwane yomoya, oko kukuthi, xa uthetha, ukukrazula, ukukhwehlela, ukumanga, njl.; Kwezinye iimeko, ukutya (kunye nokutya) kunye noqhagamshelwano (izandla ezingcolileyo) kuyafumaneka. Ngoko ke, kwaziwa ukuba iqela le-A streptococci lingakwazi ukugcina iipropati zabo ezinobungakanani ixesha elide xa zifumana iimveliso eziyindawo efanelekileyo kubo. Ezi ziquka amaqanda, ubisi, ham kunye ne-shellfish.

Iingxaki

Isifo esona sibi kakhulu esibangelwa yi-green and non-hemolytic streptococci i- endocarditis enefuthe. Inyaniso kukuba xa unobungozi embrane yomlomo (intsimbi, ulwimi) kunye ne-toothbrush, floss okanye stomatitis streptococcus viridans zingena kwindawo yangaphakathi kwaye i-systemic bloodstream. Ukufikelela entliziyweni, banako ukufakela kwiiphini kunye nokuzilungisa. Ngaloo ndlela, esi sifo siyaqhubeka. Iqala, njengommiselo, ukubonakaliswa okuqhelekileyo: ubuthathaka, i-malaise, i-fever. Oku kubaluleke kakhulu ngenxa yokuba kaninzi kubangelwa yimichiza emnene okanye encinane.

Ikliniki kunye neziphumo

Ukuba imbangela ye-infoconitis i-endocarditis i-bacterium e-pathogenic kakhulu, eso sifo siqala ngokugqithiseleyo kwaye sihamba kunye neqondo lokushisa, ukuya kuma-degrees amane. Ngelo xesha, kukho iintlungu ze-muscular kunye kunye, kunye nentliziyo egungquthelayo. Ingozi yesi sifo kukutshatyalaliswa kwe-endocardium, oko kukuthi, i-deformation yeeplavines ezinokubonakala kweentsholongwane zentsholongwane. Ngentambo yabo, ukuxilongwa kwezinto ezincinci zeempahla, kuholele ekuhlaselweni kwentliziyo kunye nemivimbo. Ukongezelela, ii-aneurysms zeetriyiti ezinkulu, izibilini ze-cerebral, i- meningitis, i-encephalopathy kunye nokuhluleka kwentliziyo.