By Tuesday evening nearly 6,000 pigs had been removed from the river
Shanghai blogs and environmental groups expect the number of dead pigs found to rise considerably
The Huangpu River flows through downtown Shanghai and is an important source of water for the city
As a number of them were found floating in the upper end of the Huangpu River, concern has grown – this is a major source of tap water for Minhang, Fengxian and Songjiang districts
- Porcine circovirus Type 1 (PCV1) – recognized for several decades. It is a common contaminant of laboratory cell cultures. Despite being common in commercial swine globally, it does not cause illness (it is nonpathogenic).
- Porcine circovirus Type 2 (PCV2) – its emergence coincided with the occurrence of post-weaning multisystemic wasting syndrome (PMWS), a new clinical syndrome of swine. PCV2 and PMWS are common among commercial swine worldwide.