Occurrence and overlap of natural disasters, complex emergencies and epidemics during the past decade (1995–2004)
2007

Natural Disasters, Complex Emergencies, and Epidemics: Overlap and Occurrence

publication Evidence: moderate

Author Information

Author(s): Paul B. Spiegel, Le Phuoc, Mija-Tesse Ververs, Peter Salama

Primary Institution: UNHCR, Geneva, Switzerland

Hypothesis

Do large-scale epidemics commonly occur following large natural disasters?

Conclusion

Epidemics commonly occur during complex emergencies, but not typically following large-scale natural disasters.

Supporting Evidence

  • 63% of the largest complex emergencies had at least one epidemic.
  • 23% of the largest natural disasters were linked to an epidemic.
  • 87% of the largest complex emergencies occurred in areas with at least one natural disaster.

Takeaway

This study found that when big disasters happen, like wars or famines, diseases often show up too, but big diseases don't usually come after natural disasters like earthquakes or floods.

Methodology

The study analyzed data from various databases on natural disasters, complex emergencies, and epidemics from 1995 to 2004, focusing on the largest events by mortality.

Limitations

The study only shows ecological associations and does not establish cause and effect; some events may not have been captured, and misclassification may have occurred.

Digital Object Identifier (DOI)

10.1186/1752-1505-1-2

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