1. Muchidimbu:

(1) Pfungwa: Avian influenza (avian influenza) chirwere chinotapukira chinotapukira muhuku chinokonzerwa nemamwe pathogenic serotype strains emhando A furuwenza utachiona.

Zviratidzo zvekiriniki: kutadza kufema, kuderera kwekugadzirwa kwezai, serosal hemorrhage munhengo dzemuviri wese, uye huwandu hwevanhu vanofa zvakanyanya.

(2) Etiological maitiro

Maererano neantigenicity yakasiyana: yakakamurwa kuva 3 serotypes: A, B, uye C. Rudzi rweA runogona kukanganisa mhuka dzakasiyana-siyana, uye furuwenza yeshiri ndeyemhando A.

HA yakakamurwa kuva 1-16 marudzi, uye NA yakakamurwa kuva 1-10 marudzi.Iko hakuna kuchinjika-kudzivirirwa pakati peHA neNA.

Kuti tisiyanise pakati peavian fluenza nehuku Newcastle disease, utachiona hweavian influenza hunogona kuungana mumasero matsvuku eropa emabhiza nehwai, asi chirwere cheNewcastle chehuku hachikwanisi.

(3) Kuwanda kwemavhairasi

Avian influenza viruses inogona kukura muhuku embryos, saka mavhairasi anogona kuparadzaniswa uye kupfuudzwa neallantoic inoculation ye9-11-day-old chicken embryos.

(4) Kuramba

Mavhairasi efuruwenza anonzwa kupisa

56 ℃ ~ 30 maminitsi

kupisa kwepamusoro 60 ℃ ~ 10 maminitsi Kurasikirwa kwekuita

65 ~ 70 ℃, maminetsi akati wandei

-10 ℃ ~ kupona kwemwedzi yakati wandei kusvika kupfuura gore

-70 ℃ ~ inochengetedza kusagadzikana kwenguva yakareba

Kuderera kwekushisa (glycerin kudzivirira）4 ℃ ~ 30 kusvika 50 mazuva (mutsvina)

20 ℃ ~ 7 mazuva (mutsvina), mazuva gumi nemasere (muminhenga)

Nyama yehuku yakaomeswa nechando uye mwongo webhonzo zvinogona kurarama kwemwedzi gumi.

Inactivation: formaldehyde, halogen, peracetic acid, ayodhini, nezvimwewo.

2. Epidemiological maitiro

(1) Mhuka dzinobatwa nyore nyore

MaTurkey, huku, madhadha, hanzi uye mamwe marudzi ehuku anowanzo kutapukirwa munzvimbo yechisikigo (H9N2)

(2) Kunobva utachiona

Shiri dzinorwara nehuku dzadzoserwa dzinogona kusvibisa maturusi, chikafu, mvura yekunwa, nezvimwewo kuburikidza netsvina, zvinobuda, nezvimwe.

(3) Muenzaniso wezviitiko

H5N1 subtype inotapurirwa kuburikidza nekubata.Chirwere chinotanga pane imwe nguva muimba yehuku, zvino chinopararira kune shiri dziri pedyo mumazuva 1-3, uye inobata boka rose mumazuva 5-7.Huwandu hwekufa kwehuku dzisina kudzivirira zvirwere mukati memazuva mashanu kusvika manomwe hwakakwira kusvika pa90%~100%