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Altogether 786 isolates from time interval 2008-2010 were grouped into 90 PCR ribotypes and eleven of them were shared among all host types and the environment. Ribotypes that were most common in humans were also present in water and different animals (014/020, 002, 029). Interestingly, non-toxigenic isolates were very common in the environment (30.8%) in comparison to humans (6.5%) and animals (7.7%). A high degree of similarity was observed for human and animal isolates with PFGE.
Vulnerability to environmental hazards is much influenced by household income and assets, gender, the quality of housing and basic services, and environmental health risks within the workplace. So, among the most vulnerable groups are: 1  Individuals/households living in poor quality homes and neighbourhoods that lack adequate provision for water, sanitation, drainage and garbage removal and as such also lack safe indoor and outdoor living and play environments.