Table 5 The morbidity and mortality of pigs used for animal challenge.

From: Emergence of Different Recombinant Porcine Reproductive and Respiratory Syndrome Viruses, China

Group

Treatment

Number of pigs

Morbidity

Mortality

I

SDhz1512

5

60% (3/5)

0

II

SDlz1601

5

80% (4/5)

20% (1/5)

III

SDYG1606

5

100% (4/5)

20% (1/5)

IV

PAMs culture supernatant

5

0

0