Ikab mob cyst

Etiological yam ntxwv:

1. Cov cwj pwm thiab kev faib tawm

Tus kab mob cystic kab mob kis tau los ntawm ob-segmented ob-segmented RNA tus kab mob tsev neeg thiab cov kab mob ob-segmented RNA virus genus. Nws muaj ob hom serotypes, uas yog serotype I (nqaij qaib-derived strain) thiab serotype II (turkey-derived strain). . Ntawm lawv, virulence ntawm serotype kuv hom sib txawv heev.

2. Kev kis kab mob

Tus kab mob no tuaj yeem loj hlob thiab yug me nyuam ntawm qaib embryo. Nws yuav tua cov qaib embryos 3-5 hnub tom qab raug inoculated rau hauv chorioallantoic daim nyias nyias. Nws yuav ua rau edema thoob plaws hauv cov nqaij qaib embryos, congestion thiab qhov chaw zoo li los ntshav nyob rau hauv lub taub hau thiab ntiv taw, thiab mottled necrosis ntawm daim siab.

3. Kev tiv thaiv

Tus kab mob no tiv taus heev, lub teeb-resistant, resistant mus rau rov qab khov thiab thawing, thiab yog resistant rau trypsin, chloroform, thiab ether. Nws muaj zog kam rau ua kom sov thiab muaj sia nyob ntawm 56 ° C rau 5 teev thiab 60 ° C rau 30 feeb; tus kab mob tuaj yeem muaj sia nyob hauv cov tsev qaib uas kis kab mob rau 100 hnub. Tus kab mob no rhiab heev rau cov tshuaj tua kab mob xws li peracetic acid, sodium hypochlorite, bleaching hmoov thiab iodine npaj nrog cov pa tshuaj tua kab mob ntau, thiab tus kab mob tuaj yeem ua rau tsis muaj zog hauv lub sijhawm luv luv.

4. Hemagglutination

Tus kab mob no tsis tuaj yeem agglutinate cov qe ntshav liab ntawm qaib thiab ntau lwm yam tsiaj.