The pathogens described are:
Pathogenic bacteria:
Enterovirulent Escherichia coli group (EEC Group)
Parasitic protozoa and worms
Viruses
Natural toxins
Other pathogenic agents
External links:
... 20.9% have a female householder with no husband present, and 23.4% are non-families. 20.3% of all households are made up of individuals and 5.7% have someone living alone ...