Skip to main content

Advertisement

Table 5 Replication in ducks of NDV after inoculated intranasally a

From: Phylogenetic relationships and pathogenicity variation of two Newcastle disease viruses isolated from domestic ducks in Southern China

Virus replication on 3 DPI(log10EID50/g)bin: Strains
SS-10 NH-10
Heart NDc 1.58 ± 0.14
Liver ND ND
Spleen 3.58 ± 0.14 3.58 ± 0.14
Lung 2.58 ± 0.14 2.50
Kidney 2.17 ± 0.95 2.08 ± 1.01
Brain 1.58 ± 0.14 ND
Trachea 2.00 ± 0.66 2.00 ± 0.66
Small intestine 2.75 ± 0.43 3.42 ± 0.88
Bursa of fabricius 3.83 ± 0.38 3.50
Thymus 4.08 ± 1.01 4.17 ± 0.95
Pancreas 2.17 ± 0.95 1.67 ± 0.14
Cecal tonsils 2.67 ± 0.14 2.58 ± 0.14
  1. aTwo-week-old ducks were inoculated intranasally (i.n.) with 106 EID50 of each virus in a 0.2 ml volume; three ducks in each group were euthanized on 3 DPI, and virus titer was determined in samples of heart, liver, spleen, lung, kidney, brain, trachea, Small intestine, bursa of fabricius, Thymus, Pancreas and cecal tonsils in eggs [17].
  2. bFor statistical analysis, a value of 1.5 was assigned if the virus was not detected from the undiluted sample in three embryonated hen eggs. Virus titers are expressed as means ± standard deviation in log10EID50/g of tissue.
  3. cNo detected.