Fly tzc - umphathi wesifo esibulalayo

Wonke umntu ofunda esikolweni uyazi iindiza ezinobungozi. I-fly tzc ihlala kwilizwekazi laseAfrika. Kwaye iminyaka engama-150, abantu basekuhlaleni nasezilwaneni baye besoyika. Kweminye imimandla, abantu bayashiya izityalo ezikhulayo baze baye kwenye indawo. Kule mihlaba akukho nto i-bloodsucker eyingozi kune-fly tz. Yintoni enetyala kangaka, ukuba empeleni ayinikezeli ubuthi bayo? Isizathu esona sizathu sokubulala amawaka abantu siyi-parasites eyingozi ye-trypanosome, eqhutywa yi-insects.

Idiza ibonakala ngathi?

Ubume obuqhelekileyo, phantse njengeflethi eqhelekileyo, kusenokuba neenkalo ezihlukile. Kulo ntloko kukho iproboscis ende evumela amabhinqa ukuba alume ulusu lwabantu kunye nezilwanyana kunye nokutya ngegazi. Amaphiko ajikelezayo, awela kwilizwe elincinci xa i-fly fly. Inambuzane inesisu esiswini esisezantsi nephuzi phezulu, emine emide ebomvu ibhokhwe ebomvu. Umntu omdala uphaphaza, isithombe esinikezwe ngasentla, ngexesha lobomi balo lifikelela kumaphuphu angama-10, ewa phantsi, aqhube aze aqhube iiyure ezimbalwa.

Usulelo luvela njani?

Inkqubo yokusuleleka ingenakukhunjulwa ukuba i-fly ifake ubuncinane xa idliwe kwigazi labathwali be-trypanosomiasis (okanye "isifo sokulala"). Ngokwezinzululwazi, i-antelopes zasendle kunye nezinye izilwanyana ezinomzimba, egazini lalo eli liphila, limele ityala kuyo yonke into. Kwaye izilwanyana ngokwazo azifayo kwesi sifo. Isifo sokulala asibonakali ngokukhawuleza. Ekuqaleni isigulane siva ubuthathaka, ukukhathala, utshintsho kwinkqubo yesantya ephakathi. Umntu uphelelwe amandla, kaninzi ulahlekelwa ingqalelo okanye awele kwiphupha elidakazelayo, umzimba wakhe uqina, uphuhliso lwe-meningoencephalitis lwenzeka, ngenxa yoko, kubakho ukufa. Akunjalo kuphela abantu bomthonyama abafa. Ininzi yabakhenkethi emva kokubuya evela eAfrika yathotywe ngesifo sokugula.

Ngenkomo , i- fly tzc ayilona yingozi. Ukufa kuholela kwizifo zezilwanyana - i-Nagana, eqhutyelwa yizinambuzane ezigazi. Ngokwezibalo ezibuhlungu, iinkunzi ezizigidi ezi-3 ziyafa minyaka yonke ukusuka kwiindawo zokubhabhisa i-tsetse.

Izazinzulu zifuna ukuphuma

Abemi base-Afrika kunye ne-Australia, apho eli ligazi lihlala khona, lilinde ukubaleka kwingozi. Kodwa ngoku, akukho nonyango "yokugula ukugula" okanye iindlela zokutshabalalisa i-fly zeet. I-Trypanosomes iziphatha ngokugqithiseleyo emzimbeni womntu, iguqule kwaye iguqule, ngoko akunakwenzeka ukubulala zonke iinguqu ngeyeza elinye. Iipasasiti eziliqela ziya kutshatyalaliswa, kwaye abanye baya kuqhubeka nomsebenzi wabo obalulekileyo.

Iingcali zenzululwazi zibeka ithemba elikhulu kwiindlela ezintsha zokunciphisa inani labantu be- fly. I-fly mates kunye nendoda kuphela kanye ngexesha lokuphila. Ukwazi olu phawu, izazinzulu zanquma ukukhulula izigidi zamadoda enyantsiweyo kwimvelo. Ukwenza oku, zikhulile ngokukhethekileyo kwaye zichithwe nge-radiation. Ibhinqa, elinye lixutywe, ayiyi kuvumela enye indoda ukuba ifike kuye, kodwa ayiyi kukwazi ukuvelisa inzala yakhe. Le ndlela, ngokweengcali, iya kukhulula abaphethe isifo esibulalayo. Kwaye emva kweminyaka embalwa inqabunga iya kulahleka ebusweni bomhlaba.