Abstract
BackgroundDespite overall good vaccination coverage in many countries, vaccine hesitancy has hindered full coverage and exposed groups to the risk of outbreaks. Somali immigrant groups have been known to have low measles vaccination coverage, leading to outbreaks in their communities. Current research indicates a general lack of trust in the healthcare system, the use of alternative information sources and inadequate health literacy can be contributing factors. We explore measles vaccine coverage in children born to Somali parents in Norway, whether it has changed over time and factors that may influence coverage.MethodsData was extracted from the National Population Register on all children born in Norway from 2000 to 2016, where both parents originated from Somalia. Date of birth, gender, residential area at birth and date of immigration and emigration for both parents was linked to information on measles vaccination from the National Immunisation Register.ResultsWe found that children born to Somali immigrants in Norway had suboptimal measles vaccine coverage at 2 years; for children born in 2016 the coverage was 85%. Coverage declined between 2000 and 2016, and at a greater rate for boys than girls. Children born to mothers residing in Norway for 6 years or more had lower coverage compared to those with mothers residing less than 2 years prior to their birth. Children born in the capital and surrounding county had significantly lower coverage than children born elsewhere in Norway.DiscussionNew targeted interventions are needed to improve measles vaccine coverage among Somali immigrants in Norway. Some possible strategies include using Somali social media platforms, improving communication with Somali parents and tighter cooperation between various countries’ vaccination programmes.
Highlights
Despite overall good vaccination coverage in many countries, vaccine hesitancy has hindered full coverage and exposed groups to the risk of outbreaks
Inadequate health literacy and underutilization of preventive services among Somali women in Norway has been reported [12, 13]. Based on these factors and previous measles outbreaks, we investigated measles vaccine coverage in children born in Norway to Somali parents and examined factors that are associated with nonvaccination in order to guide future studies and targeted measures to improve coverage in this group
Children born in Norway to Somali immigrants had lower measles vaccine coverage than the national average and this discrepancy increased over time
Summary
Despite overall good vaccination coverage in many countries, vaccine hesitancy has hindered full coverage and exposed groups to the risk of outbreaks. Somali immigrant groups have been known to have low measles vaccination coverage, leading to outbreaks in their communities. An increase in measles outbreaks in Europe in 2016– 2019 has been attributed to a decline in vaccination coverage, partly due to vaccine hesitancy. If suboptimal vaccination coverage persists, there will continue to be a high risk of widespread measles circulation in Europe [1]. The largest outbreaks occurred in countries with low measles vaccination coverage, outbreaks occurred in countries with high national coverage. This can be explained by gaps in the vaccination coverage in subgroups of the population sharing a common community, age, or religious affiliation [2]
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