The pathogens described are:
Pathogenic bacteria:
Enterovirulent Escherichia coli group (EEC Group)
Parasitic protozoa and worms
Viruses
Natural toxins
Other pathogenic agents
External links:
... Qian[?] - spent 12 years starting in 138 BC exploring much of Central Asia for Emperor Han Wu Di[?] Zheng He, (1371-1435), Chinese admiral who travelled widely over the ...