1. Uhlolojikelele:
(1) Umqondo: I-Avian influenza (umkhuhlane wezinyoni) yisifo esithathelwanayo esithathelwanayo kakhulu ezinkukhuni esibangelwa izinhlobo ezithile ze-serotype ze-pathogenic zohlobo lwamagciwane omkhuhlane.
Izimpawu zomtholampilo: ukuphefumula kanzima, ukuncipha kokukhiqizwa kwamaqanda, ukopha kwe-serosal ezithweni zomzimba wonke, kanye nezinga eliphezulu kakhulu lokufa.
(2) Izici ze-Etiological
Ngokwe-antigenicity ehlukene: ihlukaniswe ngama-serotypes angu-3: A, B, no-C. Uhlobo A lungangena ezilwaneni ezihlukahlukene, futhi umkhuhlane wezinyoni ungowohlobo A.
I-HA ihlukaniswe ngezinhlobo ezingu-1-16, futhi i-NA ihlukaniswe ngezinhlobo ezingu-1-10. Akukho ukuvikeleka phakathi kwe-HA ne-NA.
Ukuhlukanisa phakathi komkhuhlane wezinyoni kanye nesifo senkukhu iNewcastle, igciwane le-avian influenza lingakwazi ukunqwabelana kumangqamuzana egazi abomvu ehhashi nezimvu, kodwa isifo senkukhu iNewcastle asikwazi.
(3) Ukwanda kwamagciwane
Amagciwane omkhuhlane wezinyoni angakhula emibungu yezinkukhu, ngakho-ke amagciwane angahlukaniswa futhi adlule ngokufaka i-allantoic inoculation yemibungu yenkukhu enezinsuku eziyi-9-11.
(4) Ukumelana
Amagciwane omkhuhlane azwela ukushisa
56℃~30 imizuzu
izinga lokushisa eliphezulu 60℃~10 imizuzu Ukulahlekelwa umsebenzi
65 ~ 70 ℃, imizuzu embalwa
-10℃~phila izinyanga ezimbalwa kuya ngaphezu konyaka
-70 ℃ ~ igcina ukutheleleka isikhathi eside
Izinga lokushisa eliphansi (ukuvikelwa kwe-glycerin)4℃~30 izinsuku ezingu-50 (endle)
Izinsuku ezingama-20℃~7 (endle), izinsuku eziyi-18 (ezimpapheni)
Inyama yenkukhu eqandisiwe nomnkantsha ingaphila izinyanga eziyishumi.
Ukungasebenzi: i-formaldehyde, i-halogen, i-peracetic acid, i-iodine, njll.
2. Izici ze-Epidemiological
(1) Izilwane ezithintekayo
Ama-turkeys, izinkukhu, amadada, amahansi nezinye izinhlobo zezinkukhu ezivame ukutheleleka endaweni yemvelo (H9N2)
(2) Umthombo wokutheleleka
Izinyoni ezigulayo nezinkukhu ezitholiwe zingangcolisa amathuluzi, ukudla, amanzi okuphuza, njll. ngendle, uketshezi, njll.
(3) Iphethini yezehlakalo
I-H5N1 subtype idluliselwa ngokuthintana. Lesi sifo siqala ngesikhathi esisodwa endlini yezinkukhu, bese sisakazeka ezinyoni eziseduze ezinsukwini ezingu-1-3, futhi sithinta umhlambi wonke ngezinsuku ezingu-5-7. Izinga lokufa kwezinkukhu ezingezona amasosha omzimba ezinsukwini ezi-5-7 liphezulu lifinyelela ku-90%~100%
Isikhathi sokuthumela: Nov-17-2023