The pathogens described are:
Pathogenic bacteria:
Enterovirulent Escherichia coli group (EEC Group)
Parasitic protozoa and worms
Viruses
Natural toxins
Other pathogenic agents
External links:
... householder with no husband present, and 23.4% are non-families. 20.1% of all households are made up of individuals and 10.6% have someone living alone who is 65 years of ...