Same here.
Apparently Strep Suis is very common in pigs, and generally no big deal. Since the outbreak does not seem consistent with what we know about Strep Suis, the suspicion is that the real cause is something else. The presence of Strep Suis could be merely coincidental (assuming it is really there and not just a made up cover story).
The Chinese refusal to share information, including samples, is criminal.
Based on the information available (if correct);
Differential Diagnosis - Ricin
It is endemic in every porcine population in most if not all countries. and strep suis serotype 2 (of 36 serotypes)is the most virulent and presents high mortality rates.