Izibonelo Zemibuzo Nezingxoxo Ngokungavikeleki Okusebenzayo Nokungashukumi
Ukungavikeleki komzimba yikhono lomzimba lokulwa nokuqeda amagciwane noma ama-antigen angaphandle. Ngokuvamile, isimiso somzimba sokuzivikela somuntu sihlukaniswe ngezigaba ezimbili ezibanzi: ukungavikeleki kwemvelo (okungekona okuqondile) kanye nokungavikeleki okuguquguqukayo (okuqondile). Ukungavikeleki okuguquguqukayo kungahlukaniswa futhi ngezinhlobo ezimbili: ukungavikeleki okusebenzayo kanye nokungavikeleki okusebenzayo. Kulesi sihloko, sizoxoxa ngazo zombili izinhlobo zokungavikeleki komzimba, sinikeze izibonelo, futhi sixoxe ngazo ukuze sijulise ukuqonda kwethu ngalesi sihloko.
Ukungavikeleki Okusebenzayo
Ukuzivikela komzimba okusebenzayo kuyindlela yokuzivikela komzimba etholakala lapho umzimba ukhiqiza impendulo yomzimba ngqo ku-pathogen. Le nqubo ihilela ukukhiqizwa kwama-antibodies kanye nokusebenza kwamaseli athile e-T. Ukuzivikela komzimba okusebenzayo kungatholakala ngezindlela ezimbili:
1. Ukutheleleka Kwemvelo: Uma umuntu etheleleke ngegciwane, umzimba usabela ngokwemvelo ngokukhiqiza ama-antibodies ukuze alwe nalo. Isibonelo esivamile ukuthi abantu abalulamayo e-chickenpox ngokuvamile abaphinde baphathwe yilesi sifo.
2. Ukugoma: Imijovo ivuselela amasosha omzimba ukuthi akhiqize ama-antibodies ngaphandle kokubangela izifo. Isibonelo, umuthi wokugoma we-measles uhlinzeka ngesivikelo ngokubangela umzimba ukuthi uphakamise impendulo yokuzivikela ngokumelene negciwane le-measles.
Ukungavikeleki Okungaguquki
Ukungavikeleki komzimba okwenziwa ngaphandle kokuzivikela komzimba kuwukuvikelwa komzimba okutholwa ngaphandle kwesidingo sokukhiqiza impendulo yomzimba. Kulesi simo, umzimba uthola ama-antibodies akhiqizwa ngaphandle komzimba. Lokhu kuzivikela komzimba ngokuvamile kuba okwesikhashana ngoba umzimba awunawo amaseli enkumbulo okukhiqiza ama-antibodies ngemva kokuba ama-antibodies atholakale esephelile.
Nazi ezinye izibonelo zokuzivikela komzimba okungasebenzi:
1. Ukungavikeleki Kwemvelo Okungaguquki: Lokhu kwenzeka lapho ama-antibodies edluliselwa kusuka kumama kuya enganeni nge-placenta ngesikhathi sokukhulelwa noma ngobisi lwebele ngemva kokuzalwa.
2. Ukungavikeleki Kokwenziwa: Lokhu kufezwa ngokujova ama-antibodies akhiqizwa ngaphandle komzimba, njengasendabeni yokwelashwa nge-immunoglobulin kweziguli ezivezwe ezifweni ezithile ezifana ne-hepatitis B.
Imibuzo Eyisibonelo Nengxoxo
Umbuzo 1: Ukungavikeleki Okusebenzayo
Umbuzo: Ingane ithola umuthi wokugomela ipholiyo bese iba namandla okuzivikela kugciwane lepholiyo. Chaza ukuthi umuthi wokugomela unikeza kanjani amandla okuzivikela asebenzayo enganeni.
Ingxoxo:
Umuthi wokugomela i-polio uqukethe i-poliovirus ebuthaka noma ebulewe. Uma unikezwa, isimiso somzimba sokuzivikela sengane siyaqaphela izingxenye zegciwane njenge-antigen zakwamanye amazwe. Isimiso somzimba sokuzivikela siphendula ngokusebenzisa amaseli e-B namaseli e-T akhethekile ku-poliovirus.
Amaseli e-B abe esekhiqiza ama-antibodies abopha futhi aqede i-antigen. Ngaphezu kwalokho, amanye amaseli e-B akhula abe amaseli enkumbulo ahlala emzimbeni isikhathi eside. Uma ingane ivezwa yi-poliovirus esikhathini esizayo, lawa maseli enkumbulo angavuselela ngokushesha impendulo enamandla neqondile yomzimba, abhubhise igciwane ngaphambi kokuba libangele izifo.
Umbuzo 2: Ukungavikeleki Okungahleliwe
Umbuzo: Chaza ukuthi kungani izinsana ezisanda kuzalwa zinezinga eliphezulu lokuvikelwa ezifweni ezithile, nokuthi kungani lokhu kuvikelwa kungokwesikhashana.
Ingxoxo:
Izinsana zithola ama-antibodies konina nge-placenta ngesikhathi sokukhulelwa. La ma-antibodies afaka i-immunoglobulin G (IgG), ehlinzeka ngokuvikelwa ezifweni eziningi. Ngemva kokuzalwa, izingane zithola nama-antibodies engeziwe obisini lwebele ngesimo se-immunoglobulin A (IgA).
Lawa ma-antibodies ahlinzeka ngokuvikelwa okusheshayo kodwa okwesikhashana ngoba umzimba womntwana awukawakhiqizi noma awukakhiqizi amaseli enkumbulo. Ngokuhamba kwesikhathi, ama-antibodies omama azoncipha, futhi ukuvikelwa okungasebenzi kuzoba buthaka. Ngakho-ke, ukugoma okusebenzayo ngokugoma kuqala esemncane ukuze kwakhiwe amasosha omzimba asebenzayo ahlala isikhathi eside.
Umbuzo 3: Ukuqhathaniswa Kokuzivikela Okusebenzayo Nokungashukumi
Umbuzo: Qhathanisa izinzuzo kanye nokungalungi kokuzivikela komzimba okusebenzayo kanye nokungashukumi.
Ingxoxo:
Ukungavikeleki Okusebenzayo:
- Inzuzo:
– Kuhlala isikhathi eside, ngezinye izikhathi impilo yonke (isib., ngemva kokugonywa noma ukutheleleka kwemvelo).
– Kukhiqiza amaseli enkumbulo akhuthaza impendulo esheshayo ekuvezweni okulandelayo yi-pathogen efanayo.
- Ukulahlekelwa:
– Kuthatha isikhathi (izinsuku kuya emavikini) ukunikeza isivikelo ngoba umzimba kufanele wakhe impendulo yomzimba.
Ukungavikeleki Okungaguquki:
- Inzuzo:
– Ihlinzeka ngesivikelo esisheshayo, okubaluleke kakhulu ezimweni eziphuthumayo (isib., ukuchayeka ebuthi benyoka noma ukulunywa yisilwane esinolaka).
- Ukulahlekelwa:
– Ukuvikelwa kungokwesikhashana, ngokuvamile kuthatha amasonto noma izinyanga ezimbalwa kuphela.
– Ayikhiqizi amangqamuzana enkumbulo, ngakho umzimba “awufundi” ukuthi ungazivikela kanjani esikhathini esizayo.
Umbuzo 4: Ukusetshenziswa Kwezokwelapha
Umbuzo: Esimweni esiphuthumayo sezempilo njengokuchayeka kumarabi, kungani isiguli singase sithole i-rabies immunoglobulin kanye nomjovo wamarabi?
Ingxoxo:
Ezimweni zokuchayeka kuma-rabies, isikhathi sibalulekile ngoba igciwane lama-rabies liyingozi kakhulu uma libangela izifo. Ngakho-ke, kuthathwa izindlela ezimbili:
1. I-Rabies Immunoglobulin (i-immunity engasebenzi): Lena i-antibody ye-rabies enikezwa ukuqeda ngqo noma yiliphi igciwane elingase libe khona emzimbeni. Lokhu kuzivikela okungasebenzi kahle kunikeza isivikelo ngokushesha ngenkathi umzimba uthuthukisa uhlelo lwawo lokuzivikela.
2. Umuthi wokugomela amarabi (ukuzivikela komzimba okusebenzayo): Umuthi wokugomela uvuselela umzimba ukuthi wakhe amasosha omzimba asebenzayo ngokubangela umzimba ukuthi ukhiqize ama-antigen athile ngokumelene negciwane lamarabi. Lo muthi wokugomela uvame ukunikezwa ngemithamo eminingi futhi uhlose ukuhlinzeka ngesivikelo sesikhathi eside.
Ukusetshenziswa kokubili kuhlose ukuhlinzeka ngokuvikelwa okuphelele: ukuzivikela okusheshayo ngama-immunoglobulins kanye nokuzivumelanisa nezimo isikhathi eside ngokugoma.
Ngokuhlola ngokujulile izibonelo nezingxoxo ezingenhla, singaqonda kangcono ukuthi ukusebenza kokuzivikela komzimba okusebenzayo nokungenzi lutho kusebenza kanjani, kanye nokubaluleka kohlobo ngalunye ekugcineni impilo nokuvimbela izifo. Ukuzivikela komzimba kuyisimiso esiyinkimbinkimbi, futhi isu elikhethiwe livame ukuhlelwa ngokwesimo sempilo esikhona.
