Infectious cyst

Etiological yam ntxwv:

1. Cov cwj pwm thiab cov kev ntseeg

Cov kab mob kis tus kab mob cystic belongs rau ob-segmented RNA cov kab mob tsev neeg thiab ob npaug-stranded ob-segmented RNA tus kab mob genus. Nws muaj ob lub serotypes, namely serotype i (qaib-derived plaw) thiab serotype II (Qaib ntxhw-dered dhau). Cov. Ntawm lawv, tus virulence ntawm serotype Kuv lim nws txawv heev.

2. Tus Kab Mob Sib Tw

Tus kab mob no tuaj yeem loj hlob thiab tsim me me rau cov nqaij qaib emryos. Nws yuav tua cov nqaij qaib embryos 3-5 hnub tom qab tau txais inoculated rau Chorioallantozic membrane. Nws yuav ua rau edema thoob plaws cov nqaij qaib embryos, cong-zoo li los ntshav hauv lub taub hau thiab ntiv taw, thiab mottled necrosis ntawm daim siab.

3. Kuj

Tus kab mob no yog cov tiv thaiv zoo, tiv taus rov ua kom khov thiab yaj, thiab tiv thaiv trypsin, chloroform, thiab etherots. Nws muaj qhov muaj zog tiv thaiv kom sov thiab tuaj yeem muaj sia nyob ntawm 56 ° C rau 5 teev thiab 60 ° C rau 30 feeb; Tus kab mob no tuaj yeem muaj sia nyob hauv cov tsev muaj nqaij qaib tsis huv rau 100 hnub. Tus kab mob no yog rhiab rau cov tshuaj tua kab mob xws li peracetic acid, sodium hypochlorite, tshuaj tua kab mob hypocegrations, thiab tus kab mob yuav ua tsis tau lub sijhawm luv luv.

4. Hemagglutination

Tus kabmob tsis tuaj yeem agglutate cov ntshav liab ntawm cov qaib thiab ntau lwm cov tsiaj.