In a study of the overlap between complex humanitarian emergencies and disease outbreaks, researchers found that more than 40% of complex emergencies that occurred between 2005-2014 were associated with an outbreak of infectious disease, with a high likelihood that the outbreak was vaccine-preventable.
Conflict & Humanitarian Emergencies
Insecurity from conflict or instability hinders access to immunization, potentially sparking outbreaks
Insecurity resulting from armed conflict, political instability, or social disruption increases the risk of communicable disease outbreaks during complex humanitarian emergencies by inhibiting populations’ access to health services, disrupting activities such as immunization and surveillance that prevent the spread of diseases, and making adequate humanitarian responses more difficult.
Mass displacement can lead to disease outbreaks, but immunization can prevent the spread of communicable diseases
Mass displacement of people during a complex humanitarian emergency can trigger a “cascade” of risk factors for communicable disease outbreaks, including a breakdown in health services (such as disease surveillance and immunization services); over-crowding (increasing disease transmission rates); inadequate water, sanitation and hygiene; and exposure of displaced population to endemic diseases for which they have no immunity.
Rotavirus vaccine in conflict areas saves lives and is cost-effective, even with low coverage rates
A two-dose schedule of rotavirus vaccine was estimated to be cost-effective in Somalia, where more than 20 years of civil conflict have significantly damaged the health system and vaccine coverage is exceedingly low. Researchers estimate that in 2012, routine use of rotavirus vaccine, even at low coverage rates, would have averted nearly 25% of deaths due to rotavirus diarrhea in Somali children under one year of age.
Vaccine-preventable illnesses cause greatest burden of mortality for children affected by armed conflict
Children under 5 years of age bear the greatest burden of indirect conflict-associated mortality (indirect mortality results from disruption of health services including immunization, food insecurity, and high risk living conditions such as those found in refugee camps). The leading causes of child death in these circumstances include respiratory infections, diarrhea, measles, malaria, and malnutrition.
Vaccine-preventable illnesses are the leading causes of death during humanitarian emergencies
Respiratory infections and diarrhea are the leading causes of death during humanitarian emergencies according to a 2016 review of vaccine-preventable diseases and the use of immunizations during complex humanitarian emergencies.
Universal immunization programs have been shown to improve the height and weight measurement markers associated with malnutrition
Malnutrition is a leading contributor to morbidity and mortality during humanitarian emergencies, and a cyclical relationship exists between malnutrition and infectious diseases. Universal immunization programs have been shown to improve the height and weight measurement markers associated with malnutrition.
Conflict can impact health systems, compromising disease elimination goals
Conflict in the Eastern Mediterranean Region impacted health infrastructure and compromised the success of the region’s measles elimination goal. At the same time that rates of migration and displacement skyrocketed, the number of measles cases in the region doubled, from 10,072 cases in 2010 to 20,898 in 2015.
Immunization activities in countries of conflict are achieved through global partners support
During the humanitarian crisis in the Syrian Arab Republic, the constant support from WHO, UNICEF, and local NGOs resulted in immunizations against VPDs reaching over 90% of children.
Sustaining immunization activities during conflict can be achieved through programmatic support from global partners
During the conflict in Yemen, efforts spearheaded by WHO, with coordination among partners and effective use of resources, especially GAVI, resulted in continued high pentavalent vaccine coverage decreasing only 3% from 2010 to 2015. Yemen also remained polio-free through 2015 and smoothly introduced two new vaccines (MR and IPV).