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Table 4 HI titers to NDV at day pre-challenge and virus detection in visceral organs from different rFPV immunized groups on day 5 p.c.

From: Positive selection in the hemagglutinin-neuraminidase gene of Newcastle disease virus and its effect on vaccine efficacy

Vaccine group

HI titer ± standard deviationa

Virus detection (positive/total)c

 

Go/JS6/05

La Sota

Liver

Brain

Spleen

Kidney

Trachea

Lung

rFPV-JS6HN

3.80 ± 0.92 b

3.30 ± 1.16

0/6

3/6

3/6

4/6

0/6

2/6

rFPV-LaSHN

1.50 ± 0.85

3.90 ± 0.57

0/6

5/6

6/6

4/6

0/6

5/6

  1. a HI titers to Go/JS6/05 or La Sota were evaluated on day 21 post vaccination.
  2. b titers to homologous antigens were noted in bold.
  3. c Virus replication was detected on day 5 post challenge by inoculation into 10-day-old SPF embryonated chicken eggs.
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Virology Journal

ISSN: 1743-422X