Table 3.
The Chinese IPNV isolates used in this study.
| Isolates | Provinces (Districts) | Accession No. | Farms a | Date of Sampling | Host b | Host Size (g) | Mortality (%) c |
|---|---|---|---|---|---|---|---|
| GS2017-1 * | Gansu | MW662084 | A | 2017.10 | Triploid rainbow trout | 45 ± 5 | 65 |
| GS2017-2 * | Gansu | MW662085 | A | 2017.10 | Triploid rainbow trout | 4 ± 1 | 75 |
| GS2018-1 * | Gansu | MW662086 | A | 2018.08 | Triploid rainbow trout | 20 ± 2 | 80 |
| GS2019-1 | Gansu | MW662087 | A | 2019.02 | Triploid rainbow trout | 1.5 ± 0.5 | 50 |
| GS2019-2 * | Gansu | MW662088 | A | 2019.05 | Triploid rainbow trout | 3 ± 1 | 78 |
| GS2019-3 | Gansu | MW662089 | A | 2019.08 | Triploid rainbow trout | 50 ± 3 | 56 |
| GS2019-4 | Gansu | MW662090 | A | 2019.08 | Triploid rainbow trout | 4 ± 1 | 75 |
| GS2020-2 d | Gansu | MW662092 | A | 2020.08 | Triploid rainbow trout | 8 ± 2 | 68 |
| GS2020-1 d | Gansu | MW662091 | J | 2020.05 | Triploid rainbow trout | 3 ± 1 | 80 |
| QH2019-1 | Qinghai | MW662093 | B | 2019.03 | Triploid rainbow trout | 145 ± 10 | 35 |
| JL2019-1 | Jilin | MW662094 | C | 2019.03 | Triploid rainbow trout | 4 ± 1 | 0 |
| LN2018-1 | Liaoning | MW662095 | D | 2018.10 | Triploid rainbow trout | 450 ± 25 | 10 |
| LN2019-1 * | Liaoning | MW662096 | D | 2019.04 | Triploid rainbow trout | 50 ± 15 | 75 |
| LN2019-2 | Liaoning | MW662097 | D | 2019.04 | Triploid rainbow trout | 50 ± 10 | 55 |
| XZ2019-1 | Tibet | MW662098 | F | 2019.08 | Brown trout | 750 ± 45 | 10 |
| XZ2019-2 | Tibet | MW662099 | G | 2019.08 | Brown trout | 3.5 ± 1 | 60 |
| HLJ2019-1 | Heilongjiang | MW662100 | E | 2019.08 | Hucho taimen | 5 ± 1 | 15 |
| HLJ2019-2 | Heilongjiang | MW662101 | E | 2019.08 | White-spotted char | 3.5 ± 1 | 35 |
| HLJ2019-3 | Heilongjiang | MW662102 | E | 2019.08 | Brook trout | 5 ± 2 | 40 |
| HLJ2019-4 | Heilongjiang | MW662103 | E | 2019.08 | Brown trout | 30 ± 6 | 35 |
| HLJ2019-5 | Heilongjiang | MW662104 | E | 2019.08 | Crucian carp | 4 ± 1 | NA e |
| HLJ2019-6 | Heilongjiang | MW662105 | E | 2019.08 | Masu salmon | 4 ± 2 | 30 |
| HLJ2019-7 | Heilongjiang | MW662106 | E | 2019.08 | Brook trout | 50 ± 10 | 20 |
| HLJ2019-8 | Heilongjiang | MW662107 | E | 2019.08 | Brown trout | 10 ± 3 | 60 |
| BJ2020-1 d | Beijing | MW662108 | I | 2020.05 | Rainbow trout | 3 ± 1 | 50 |
| ChRtm213 | Yunnan | KX234591 | H | 2013.05 | Triploid rainbow trout | 7 ± 2 | 70 |
| WZ20165 | Sichuan | KX355401 | / | 2016.04 | Rainbow trout | Unknown | 100 |
* IPNV strains were co-infected with infectious hematopoietic necrosis virus (IHNV). a Farm sites are indicated as random letters. b Latin names of hosts are as follows: Rainbow trout, Oncorhynchus mykiss; Brown trout, Salmo trutta; Crucian carp, Carassius auratus; Masu salmon, Oncorhynchus masou masou. White-spotted char, Salvelinus leucomaenis; Brook trout, Salvelinus fontinalis. The common name of Hucho taimen is unknown. c Approximate natural mortality rate. d Genogroup V, the rest are genogroup I. e Dead crucian carp was occasionally found, and the mortality was not available.