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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.
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Virology Journal

ISSN: 1743-422X