Ihlobo lihlotshaniswa nemizwa ejabulayo, kepha kunabantu okwenzelwe kubo isimo sezulu esishisayo nezinsuku ezibalele. Kulinganiselwa ukuthi cishe amaphesenti ayi-15 wabantu azwela ngokweqile. Uma ukhungatheka kalula ngamalambu akhanyayo nemisindo, wesaba kalula, uthonywe yimimoya yabanye abantu, noma ube nomthelela omkhulu kuwe, kungenzeka ukuthi ungowaleli qembu, elihlukile ngokwezakhi zofuzo, ngokusho kocwaningo.
Abanye abantu abazwela ngokweqile bazizwa impilo yabo yengqondo iwohloka lapho lina, kanti abanye babhekana nokwehla kokushisa, ngakho-ke inkolelo yokuthi isimo sezulu esifudumele sihlale singcono ngaso sonke isikhathi ayilona iqiniso.
Ukushisa kungenza futhi abantu babe nolaka ngokwengeziwe, njengocwaningo luka-2013 olushicilelwe ephephabhukwini i-Science. Abaphenyi babone ukwanda kwamaphesenti ama-4 kodlame phakathi kwabantu kanye nokwanda kwamaphesenti ayi-14 kungxabano yamaqembu njengoba amazinga okushisa enyuka.
Enye imininingwane esekela ukuwohloka kwemizwa kwabanye abantu njengomphumela oqondile wehlobo ukuphakama kokuzibulala. Ukushisa kufanele kulethe injabulo, kepha ngesikhathi sentwasahlobo nasekuqaleni kwehlobo kunamagagasi amakhulu okuzibulala, ikakhulukazi kwabesilisa nasebekhulile.
Kuyasiza ukwazi ukuthi kunamazinga ahlukahlukene we-hypersensitivity. Akuzona zonke izitha zasehlobo ezisabela ngendlela elinganayo esimweni sezulu esishisayo nesinomswakama. Naphezu kokuzizwa uphansi, iningi liyachuma. Izikhiye ukuzungeza nabantu abahle, uchithe amahora ambalwa ngosuku ungaphandle futhi ungalokothi uvumele ukushisa kukuvimbele ekwenzeni izinto ezikuthokozisayo, ngoba lokho kuzokubeka engcupheni yokuba nokudangala.