Table 4.
Virus titers in oropharyngeal and cloacal swabs from chickens after inoculated with the two H5N1 HPAIVs (A/Chicken/China/G2/2012(H5N1) = G2 and A/Duck/China/G3/2012(H5N1) = G3).
| Strains | Days post-inoculation (log10EID50/0.1 ml) ± SDa | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 3 day | 5 day | 7 day | 9 day | ||||||
| Oropharyngeal swabs | Cloacal swabs | Oropharyngeal swabs | Cloacal swabs | Oropharyngeal swabs | Cloacal swabs | Oropharyngeal swabs | Cloacal swabs | ||
| G2 | Infectedb | 2.92 ± 1.11 (5/6) | 1.96 ± 0.46 (5/6) | 2.63 ± 0.18 (2/2) | 1.88 ± 0.53 (1/2) | 2.63 ± 0.18 (2/2) | 1.63 ± 0.18 (1/2) | NDd | ND |
| Contactc | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| G3 | Infected | 4.5 ± 0(1/1) | 4.5 ± 0(1/1) | ND | – | – | – | – | – |
| Contact | 4.5 ± 0(2/2) | 4.5 ± 0(2/2) | ND | – | – | – | – | – | |
| Control | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
a
For statistical purposes, a value of 1.5 was assigned if virus was not detected from the undiluted sample in three embryonated hen's eggs (Sun et al., 2011).
b
Chickens inoculated with virus.
c
Contact chickens housed with those inoculated.
d
ND: not detected. Chickens all died.