Table 2. Summary of variant strains of the infectious bursal disease virus (IBDV)

Isolates	Species	Province	Population	Age(days)	Mortality(%)	Vaccination	Complicated disease	Gross lesion	Accession no.
A19-MRA-016	Broiler(Ross)	Jeonbuk	40,000	18	0.3−0.8	nd1	Inclusion body hepatitis	Erosion and inflammation	OM310972
A20-ETC-014	Broiler(Cobb)	Gyeongki	45,000	26	1.8	Yes(13d)	Infectious bronchitisColibacillosis	Atrophy	OM310973
A20-CFR-001	KNC2	Jeonbuk	39,000	43	0.4	Yes(23d)	Inclusion body hepatitisChicken infectious anemiaColibacillosisClostridium perfringens	Hemorrhagic and inflammation	OM310974
A20-MRA-149	Broiler	Jeonbuk	95,500	34	nd	No	No	No lesion	OM310975

No data.
Korean native chicken.