TABLE 2.

Summary (group mean ± standard deviation) of clinical observations following challenge with M. hyopneumoniae and/or SIV^a

Group	Infection status	Rectal temperatureb	Coughing scorec	Gain per dayd
MHYO	M. hyopneumoniae	0.05 ± 0.09 A,B	0.10 ± 0.23 A,B	1.45 ± 0.11 A,B
SIV	SIV	0.37 ± 0.22 B,C	0.27 ± 0.27 B	1.30 ± 0.16 A
DUAL	SIV and M. hyopneumoniae	0.45 ± 0.22 C	0.78 ± 0.38 C	1.51 ± 0.10 B
CONTROL	No infection	0.27 ± 0.26 B	0.0 ± 0.0 A	1.92 ± 0.06 C

^aWithin each column, values followed by different letters (A, B, C) are significantly different (P < 0.05). 

^bProportion of days (out of 7 total) that each pig's rectal temperature was ≥104°F. 

^cProportion of days (out of 7 total) that each pig was observed coughing. 

^dAverage daily weight gain (pounds) of pigs at 21 days post-SIV inoculation.