Ingabe umkhuhlane inyoni ukuthi liguquke futhi abangele ubhubhane phakathi abantu?

Ososayensi baye baqhuba ucwaningo laboratory lapho kwabonisa ukuthi ngaphansi kwethonya ukuguquka kwezakhi zofuzo ezintathu ezilula Umkhuhlane wezinyoni angathola ikhono ukusakaza kusukela komunye umuntu.

Kodwa ungesabi ukubheka isudu Ukuvikelwa yemvelo: abacwaningi awushintshanga igciwane uqobo (sonke sike wawabona amabhayisikobho olwanele mayelana izinhlekelele ukugwema leli phutha). Ngokuphambene nalokho, lezi ucwaningo Amazing kuzosiza ososayensi Ukuze sigweme ukuphinda osekushiwo igciwane ukuvimbela ukusakazeka kwalo okungenzeka.

Yeka indlela okuyingozi bird flu

Abacwaningi uhlobo nesithakazelo ngokuthi wezinyoni umkhuhlane A (H7N9). Ngokwe-WHO, ngo-2013, leli gciwane abathintekayo abantu abangaphezu kuka-900. Noma kunjalo, iningi lama-amacala zazihlobene abantu abasebenza yenkukhu kusukela igciwane uqobo akakwazi eyongayo phakathi abantu.

Esimweni okubi, igciwane kungenzeka ishintshe ibe ifomu engase isakaze kubantu, futhi engase aqale ukubhebhetheka kuhle komlilo wequbula. Ngenxa yalokho, ososayensi waseCalifornia wasebenza ezihlukahlukene ukuguquka kwezakhi zofuzo e ufuzo ka H7N9, ukuze ubone ukuthi kungasiza ukuthi igciwane lisabalale phakathi abantu.

ukuguqulwa kwezakhi zofuzo elula

Ososayensi abasebenza nge iprotheni phezu egciwaneni okuthiwa hemagglutinin H7. It ivumela igciwane ukuthi abophele ukusingatha amaseli bese ngegciwane kubo.

Bathola ukuthi le amaprotheni uyakwazi ukushintsha izakhi zofuzo okuqondiswa elincane acid amathathu acid ezitholakele ku egciwaneni evumela ukuba lingene bophezela kangcono cell receptor ezitholakele ku amangqamuzana omuntu, njengoba kuqhathaniswa amaseli wezinyoni.

Ngo-laboratory, ososayensi baye bakhiqiza kathathu asabekayo H7 haemagglutinin futhi wathola ukuthi angakghona ukuqalana ngokuphumelelako sithole isizinda on the amaseli womuntu kuqhoqhoqho izicubu amasampula.

Lizothola nesifo esiwubhadane?

izimiso zokuphepha iyakwenqabela ukungena la ukuguquka kwezakhi zofuzo kulezi amagciwane H7N9, ngakho balolu cwaningo aveze ukuthi ngidalé igciwane cha, futhi isetshenziswa kuphela isinqamu ingozi yawo. Ukuguqula izakhi zofuzo kanye H7N9 yangempela ukumela ucwaningo nge anda imisebenzi viral okwamanje kungavunyelwe (ngenxa yezizathu ezisobala).

Nokho, kungakhathaliseki ukuthi wesabe le miphumela? Kubonakala, hhayi okwamanje. Fiona Kalli, onguchwepheshe Immunology zokuphefumula e-Imperial College London, kusho ukuthi amathuba wawubonakalisa ngesikhathi esisodwa zonke ukuguquka kwezakhi zofuzo ezintathu "iphansana."

"Lolu cwaningo kuyosisiza ukulawula kakhudlwana ngokucophelela izingozi ezihambisana Umkhuhlane wezinyoni, futhi sandise ulwazi lwethu ziphi izinguquko kule wezinyoni umkhuhlane virus kungaba yingozi," - esho.