Pathogenicity futhi virulence microorganism. Virulence - ke ...

Umzimba womuntu iyikhaya bacterium angaba 100 trillionov. Ososayensi of namuhla manje kuphela yazi kahle ukuthi le miphakathi eziyinkimbinkimbi basebenzisane nomuntu. Ezisithintayo inqubo ukugaya, namasosha omzimba futhi mhlawumbe ngisho neyengqondo. Nokho, akubona bonke gciwane ahlalisane nama-umzimba womuntu ngokuthula nangokuzwana. It ngokuthi lesi silwanyana pathogenic ebangela izifo uyayibonisa yini ezitshalweni, ezilwaneni noma izinambuzane. Amagciwane baveze pathogenicity zabo besebenzisa virulence. Ngakho, liyini virulence?

Umqondo virulence

Virulence - yigama ukuchaza degree of pathogenicity ka igciwane. Ngakho-ke, etintfweni virulence we lwegciwane yiliphi izici zaso zofuzo, kwamakhemikhali noma kwesakhiwo ezivumela adala izifo.

Ubudlelwano obuphakathi umninikhaya kanye lwegciwane zihlale ashukumisayo, ngoba ngamunye Ungashintsha umsebenzi nemisebenzi nezinye. Umphumela ebuhlotsheni incike virulence we lwegciwane kanye degree isihlobo ukumelana noma ezifweni yempi. Indima ebalulekile nayo kudlalwa ukusebenza izindlela zokuzivikela umzimba.

Virulence izici kuhlobane ngokuqondile izakhiwo ukuvumela ukuthi nezilwanyana ezincane eziyingozi uthole noma emzimbeni yempi futhi adala izifo. Lezi zihlanganisa ubuthi webhaktheriya enesandla pathogenicity.

imiqondo ebalulekile

Invasiveness - lokhu imininingwane nezicubu. Kuhlanganisa izindlela kungenzeka ikoloni ukukhiqizwa izinto extracellular enesandla kungenzeka sokuhlasela kanye aphazamisa noma ukunqoba izindlela ezithile zokuzivikela.

Toksogennost - ikhono unekhemikhali ubuthi. Ama-bacterium angakhiqiza ezimbili izinhlobo ubuthi: endotoxins futhi exotoxins. Exotoxins ukhululeka amaseli webhaktheriya futhi ukukhuthaza ukukhula kwamagciwane. Endotoxins kukhona iseli izidakamizwa.

ubuthi webhaktheriya, kokubili encibilikayo cell-ezihambisana, kungenziwa eyalo igazi futhi lymph kwezicubu abangele imiphumela cytotoxic ezindaweni ezikude kusukela iphuzu kokuqala Ukungena. ubuthi ezithile webhaktheriya ingase futhi adale amakoloni ukubamba iqhaza ayehlasela.

Pathogenicity futhi virulence microorganism

Pathogenicity - ikhono i umzimba izifo. Leli khono zibangelwa ufuzo we lwegciwane, okuyinto ilimaza ohlangothini aphethe. Ukuze Amagciwane ngentuba, leli khono izifo akuyona isegazini. Amagciwane kungaba ukuveza anhlobonhlobo virulence.

Virulence - umqondo ukuthi kuhlangene ngokungenakuhlukaniswa nomqondo pathogenicity. I degree of virulence we lwegciwane ngokuvamile kuhlobene nezinga ikhono ukuphindaphinda impi futhi ingase ixhomeke ezicini ezithile. virulence izinto ezinomthelela pathogenicity, okusho ngokusiza abangela izifo.

Amagciwane

Abaningi ngokuphindiwe ungenisa ukunakekela izimemezelo ahlukahlukene izikhangiso umkhiqizo ukuthi zithi ukubulala 99% kwamagciwane. Lwegciwane - a igama elalisetshenziselwa ukuchaza ezincane eziphilayo (lamagciwane), okubangela izifo ezihlukahlukene. Esikhathini amagama begazi, ibizwa nangokuthi eyaziwa ngokuthi i-ejenti causative. Kunezinhlobo eziningana kwamagciwane abangela izifo ezihlukahlukene ezisukela lomdlavuza oluvamile abandayo kanye nesiphetho esinembako.

nezilwanyana ezincane Pathogenic ezithinta umuntu ngezindlela eziningi, kuye ngokuthi virulence yabo. Virulence - a igama elalisetshenziselwa ukuchaza ukusebenza lwegciwane ethile. I lwegciwane ekuphikisweni ngokunamandla ngaphezulu, kulapho-ke uzoba nomthelela omubi empilweni yomuntu.

Ingabe Zikhona Izimo Ezenza ka virulence

Virulence izici izici kwamagciwane ukunquma yamaphuzu possesses lwegciwane virulence. Lapho, aba maningi amathuba okuba ukuthi izoba yimbangela lesi sifo. Lezi zici zivune ekubhekaneni amasosha omzimba womuntu, futhi ngaphezu kwalokho, ezibhubhisa kakhulu ngezinye izikhathi ingaba umthombo.

Kunezinhlobo eziningana izinhlobo ezahlukene virulence izici ezingase khona noma sahlukene nalo ngesikhathi lwegciwane Ikakhulukazi: Ngemva kokucabangela lezi zici yokuba ikoloni, enterotoxins futhi hemolysin. Virulence - buyimfanelo ambalwa, emelela degree of yisifo esibangwa silwanyana. Lesi sici, azwakalisa ukuxhumana phakathi lwegciwane kanye yenethiwekhi. Virulence ngokuvamile kuhlobene nezinga ikhono pathogen ukwanda. Lokhu kungase kuxhomeke yenethiwekhi futhi yizici zemvelo.

A lwegciwane webhaktheriya ngokuvamile sichazwa ngokuthi iyiphi igciwane okungukuthi abangela izifo. Amandla aso kubangele isifo sibizwa ngokuthi Amagciwane. I virulence we silwanyana kuyinto encike ngqo kwi ubunjalo ukutheleleka futhi kube inkomba yokuthi ngobucayi isifo ukuthi kubangela.