Streptococcus viridans: faye hali na pathogen da kamuwa da cuta

Microorganisms ne duk kewaye da mu, kuka zauna a jikin mu, a matsayin wani ɓangare na shi da kuma duniya a manyan. Duk da haka, ba dukan su ba suna da haɗari ga lafiya, a maimakon haka, wadanda kwayoyin da cewa yin up al'ada Flora na daban-daban adam gabobin, tsayayya dan hanya microbes da kuma hana abin da ya faru da cututtuka. Bugu da kari, wani muhimmin kashi na kariya ne rigakafi da tsarin, amma idan aka raunanar ko da yanaye pathogenic Flora iya haifar da cutar. Daya daga su haske wakilan ne streptococcus viridans, wanda da za a tattauna.

asali bayanai

In ba haka ba gaba ka koma ga "strep zelenyaschy", wannan shi ne wani al'ada mazauni na mutum baka rami, inda aka sarrafa da hakora da kuma gumis, kuma sau da yawa ta zama dalili na hakori caries. Wannan shi ne saboda a cikin tsarin streptococcus viridans yana da wani musamman surface gina jiki abin da yake iya dauri da yau da kuma ta haka a haɗe zuwa hakori. A sucrase m da abinci shi sabobin tuba da shi a cikin lactic acid, corroding enamel. Its ban sha'awa sunan ya samu saboda a lokacin da bacteriological shuka shi a kan m asa na wani jini agar wadannan kwayoyin samar da kusa da su mallaka zelenyaschy sashi na hemolysis. Duk da haka, akwai sauran kungiyoyin na wannan hemolytic streptococci (gaba daya hemolyzed yanayi) da kuma wadanda ba hemolytic (haemolytic da enzymes). A kwatanta da na farko streptococcus kungiyar viridans ba kawo hadari ga jikin mutum da kuma suna da yawa kasa virulent. Duk da haka, tare da weakening na rigakafi, suna rayayye multiplying kuma suna da wani sakamako pathogenic, haddasa opportunistic cututtuka, da kuma ba ko da yaushe wani sauƙi hanya.

ilimin

Yanzu bari mu duba a cikin mafi daki-daki, abin da yake streptococcus viridans. Idan muka magana game da wadannan kwayoyin cuta daga microbiological ra'ayi, su ne siffar zobe ko ovoid gram-tabbatacce cocci, ba samar da spores. A nasa ne da rukuni na facultative anaerobes da kuma hada Streptococcaceae iyali. Don gano abin da ya kama streptococcus viridans, abin da shi ne, kamar duba a cikin haske hange. Saboda haka za ka iya ganin cewa, mafi yawansu suna shirya a nau'i-nau'i, ko da faruwa a cikin marũruwa, amma zama na kullum. Su ne mai hatsari ga mu na rigakafi da tsarin ta'allaka ne da cewa suna iya samar da wata kwantena da kare su daga phagocytosis ta qware da maikacin jini, da kuma za a iya tuba a cikin wani L-siffar, haka mutating, kuma haka iya dogon lokaci ɓuya daga gyara na mu tsaro tsarin.

Shuka da kuma virulence

Na gina jiki bukatun na wadannan kwayoyin cuta, sabanin staphylococci, ne quite hadaddun. Suna girma da kyau kawai a cikin wadanda mahalli wanda acikin shiri na dukan jini ko magani, kamar yadda suka dole bukatar carbohydrates to ikon da aka yi amfani da. Wannan shi ne dalilin da ya sa mafi yawansu, bacteriological seeding viridans streptococci amfani da jini agar. A waje muhalli, su ne quite barga, saboda, misali, a kan bushe nazarin halittu kayan (jini, mugunya, sputum), ba za su iya kula da su viability watanni da dama. Pasteurization, disinfection, suka mutu, amma ba nan da nan. Saboda haka, a lokacin da tsanani da zuwa da zazzabi na 60 digiri Celsius su mutuwa kawai ta auku a cikin rabin awa, da kuma aikace-aikace des. albarkatun - a cikin mintina 15.

epidemiology

Gaskiyar cewa, daga cikin saba microflora na jikin mutum, tare da da yawa kwayoyin cuta, ta shiga da kuma streptococcus viridans - kullum. Duk da haka, wannan kawai ya shafi wani yawan ta damuwa, da kuma a bayansa da shi iya daga kamuwa da mutane, watau dako na streptococci ko riga kamu daya daga cikin da yawa siffofin kamuwa da cuta (ciwon makogwaro, da mulufi zazzabi, ciwon huhu, da dai sauransu). A mafi hatsari marasa lafiya da babba numfashi fili cututtuka, saboda sun emit yafi streptococci a cikin yanayi. Saboda haka, babban hanya kamuwa da cuta - Airborne, wato, ta wurin magana, sneezing, tari, sumbatan, da dai sauransu.; a wasu lokuta ma zai yiwu sinadirai (abin da ake ci) da kuma lamba (datti hannayensu). An sani cewa da yawa daga cikin kungiyar A streptococci iya ci gaba da kula da su virulence Properties a lamba tare da kayayyakin, wanda su ne domin su, a gaskiya, wata m yanayi. Wadannan sun hada da qwai, madara, naman alade da kuma Shellfish.

rikitarwa

A mafi barazana cuta lalacewa ta hanyar viridans da kuma wadanda ba hemolytic streptococci, shi ne infective endocarditis. Gaskiyar cewa fada a cikin gida, sa'an nan na tsari wurare dabam dabam a lokacin da rauni na baka mucosa (gumis, harshe) buroshin hakori ko floss stomatitis streptococcus viridans. Kai zuciya, su za a iya a haɗe zuwa bawuloli da kafa mulkin mallaka su. Kamar wancan tasowa da cutar. Ya fara, a matsayin mai mulkin, kowa bayyanar cututtuka: rauni, malaise, zazzabi. Wannan shi ne saboda da farko ya nuna gaskiyar cewa sau da yawa shi ya sa matsakaici ko slabovirulentnye damuwa.

Clinic da kuma sakamakon

Idan hanyar infective endocarditis ne sosai kwayoyin cuta, cuta ta fara sa samun abinci da kuma raka febrile zazzabi, har zuwa arba'in digiri. A wannan yanayin akwai layi daya tsoka da kuma hadin gwiwa zafi, da kuma auscultation ji zuciya gunaguni. A hatsari da wannan cuta ne halakar da endocardium, Ina nufin bayyanar da nakasawa bawul kwayan tsiri a kan su. Tare da su detachment tasowa da ake dasu embolism kwanoni, manyan zuwa zuciya harin da shanyewar jiki. Bugu da kari, da aneurysm iya samar da manyan jijiyoyi, kwakwalwa ƙurji, meningitis, encephalopathy da zuciya rashin cin nasara.