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Table 1 Interspecies transmission of H3N2 and H1N1 influenza viruses from pigs to turkeys; virus detection in inoculated pigs

From: Interspecies and intraspecies transmission of triple reassortant H3N2 influenza A viruses

Virus

No. positives 1 to 3 DPI*

No. positives 4 to 6 DPI

No. positives for 2 or more days

Peak day of virus detection

Estimated average virus titer on peak day/ml

No. of animals seroconverted/total inoculated

HI**** average titer at 14 DPI

Virus isolation from swab samples

A/TK/IL/04 (H3N2)

5/5**

3/3***

5/5

4DPI

2 × 104.5

3/3

1:160

Positive

A/TK/OH/04 (H3N2)

5/5

4/4***

5/5

5DPI

2 × 106.0

4/4

1:360

Positive

A/TK/NC/03 (H3N2)

5/5

4/4***

5/5

4DPI

2 × 106.6

4/4

1:220

Positive

A/SW/NC/03 (H3N2)

5/5

3/3***

5/5

4DPI

2 × 104.7

3/4

1:340

Positive

A/TK/OH/88 (H1N1)

5/5

4/4***

5/5

4DPI

2 × 108.1

4/4

1:320

NT

A/SW/OH/06 (H1N1)

5/5

4/4***

5/5

4DPI

2 × 105.6

4/4

1:160

NT

  1. * Days post inoculation. Swabs were collected on daily bases and results are displayed in three days intervals.
  2. ** No. of pigs positive with RRT-PCR/No. of pigs inoculated.
  3. *** Some pigs were euthanized at 3 DPI to collect organs and tissues for other studies.
  4. **** Hemagglutinin inhibition.
  5. NT Not Tested