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Table 2 Number of chickens positive for l NDV and LPAIV in oropharyngeal (OP) and cloacal (CL) swabs in single and co-infected groups

From: Virus interference between H7N2 low pathogenic avian influenza virus and lentogenic Newcastle disease virus in experimental co-infections in chickens and turkeys

Virus detected   Group Days post inoculation
Day 0 Day 3 1 2 3 4 6 8 10 Totalb
l NDV OP l NDV   10/10a 10/10 10/10 10/10 10/10 7/10 9/10 66
LPAIV   ND ND ND ND ND ND ND -
l NDV + LPAIV   10/10 10/10 10/10 10/10 10/10 10/10 10/10 70
LPAIV l NDV 10/10 10/10 10/10 10/10 10/10 10/10 4/10** 64
CL l NDV   2/10 2/10 2/10 2/10 0/10 1/10 1/10 10
LPAIV   ND ND ND ND ND ND ND -
l NDV + LPAIV   2/10 0/10 1/10 2/10 0/10 0/10 2/10 7
LPAIV l NDV 3/10 0/10 4/10 4/10 3/10 0/10 0/10 14
LPAIV OP l NDV   ND ND ND ND ND ND ND -
LPAIV   10/10 10/10 10/10 10/10 10/10 8/10 4/10 62
l NDV + LPAIV   10/10 10/10 10/10 10/10 9/10 9/10 6/10 64
l NDV LPAIV 10/10 10/10 10/10 10/10 10/10 10/10 2/10 62
CL l NDV   ND ND ND ND ND ND ND  
LPAIV   2/10 1/10 10/10 3/10 3/10 3/10 2/10 24
l NDV + LPAIV   4/10 1/10 5/10* 4/10 4/10 3/10 3/10 24
l NDV LPAIV 3/10 4/10 8/10 8/10* 2/10 1/10 1/10 27
  1. In groups sequentially infected, the day post-inoculation (dpi) is based on the last virus given.
  2. aNumber of positive birds/total number of birds sampled at each time point.
  3. bTotal number of positive swabs.
  4. ND, No data.
  5. *Significant difference for number of positive chickens by qRT-PCR compared to single virus infected groups, (*, P < 0.05; **, P < 0.01).