1. Mwachidule:

.

Zizindikiro zamankhwala: kupuma movutikira, kuchepa kwa mazira, kugwiritsa ntchito zotupa m'magulu onse, komanso kuchuluka kwambiri kwa anthu ambiri.

(2) Makhalidwe a etiological

Malinga ndi kugwiritsidwa ntchito kosiyanasiyana: imagawika m'maseweredwe atatu: A, B, ndi C. Mtundu wa anthu osiyanasiyana, ndipo chimfine cha mbalame ndi cha mtundu wa A.

Ha imagawidwa mmitundu 1-16, ndipo na imagawika mitundu 1-10. Palibe chitetezo pakati pa ha ndi Na.

Kusiyanitsa pakati pa fuluwenza ndi matenda a chideru, avian fuluwerza amatha kugawanika m'maselo ofiira a akavalo ndi nkhosa, koma matenda a Newcastle sangathe.

(3) kuchuluka kwa ma virus

Ma virus a avian amakula mu mazira a nkhuku, kotero ma virus amatha kukhala otalikirana ndi allantoic inoculation ya 9-11-day-day.

(4) Kukana

Ma virus a fuluwerza amalongosola kutentha

56 ℃ ~ Mphindi 30

Kutentha kwambiri 60 ℃ ~ 10 Kutayika kwa Ntchito

65 ~ 70 ℃, mphindi zingapo

-10 ℃ ℃ ~ ~ werengani kwa miyezi ingapo kuti pakhale chaka chimodzi

-70 ℃ ~ ~ amasunga upadera kwa nthawi yayitali

Kutentha kochepa (chitetezo cha glycerin)4 ℃ ~ 30 mpaka 50 masiku (ndowe)

20 ℃ ~ 7 masiku (mu ndowe), masiku 18 (nthenga)

Nyama yakuzakuza ndi mafupa amatha kukhala ndi moyo miyezi 10.

Matendawa: Formaldehyde, Halogen, Peracen acid, ayodini, ndi zina zambiri.

2. Makhalidwe a Epidemogical

(1) Nyama zowopsa

Ma turkeys, nkhuku, atsekwe, atsekwe ndi mitundu ina ya nkhuku kwambiri m'malo achilengedwe (H9n2)

(2) Gwero la matenda

Mbalame zodwala ndipo adachira ku nkhuku zitha kuipitsa zida, kudyetsa, madzi akumwa, ndi zina.

(3) Kukhazikika

B5N1 Babype imafalikira kudzera pakukumana nazo. Matendawa amayamba nthawi ina m'gawo la nkhuku, kenako amafalikira kwa mbalame zoyandilera m'masiku 1-3, ndipo zimalowetsa gulu lonse m'masiku 5-7. Chiwerengero cha anthu osakhala ndi nkhuku kapena masiku 5-7 ndi okwera 90% ~ 100%