Enteric fever due to Salmonella Typhi (typhoid fever) occurs in urban areas with poor sanitation. While direct fecal-oral transmission is thought to be the predominant mode of transmission, recent evidence suggests that indirect environmental transmission may also contribute to disease spread.
Original Source [2]
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/environmental-transmission-typhoid-fever-urban-slum
[2] http://journals.plos.org/plosntds/article?id=10.1371/journal.pntd.0004212
[3] http://admin.indiaenvironmentportal.org.in/category/author/adam-akullian
[4] http://admin.indiaenvironmentportal.org.in/category/author/eric-ng%E2%80%99eno
[5] http://admin.indiaenvironmentportal.org.in/category/author/alastair-i-matheson-et-al
[6] http://admin.indiaenvironmentportal.org.in/category/journal/plos-neglected-tropical-diseases
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/typhoid
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/slums
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/urban-sanitation
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/waterborne-diseases
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/kenya
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/africa
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects