Table 1: Swine data and incidence of S. suis for the past three years from a swine farm in southern China.

Year Quarter
Inventory
New
birth
Sales
and death
S. suis cases Removed
for S. suis
Disinfection
times

2011 1 4057 3196 43 13
2 4093 3210 37 13
3 4122 3217 41 13
4 4087 3230 39 13

20121 4193 3245 42 13
2 4186 3267 47 13
3 4170 3328 51 13
4 4213 3317 46 13

2013
1 4239 3400 55 13
2 4317 3337 57 13