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COVID-19 Predeparture Test Results and Vaccination Coverage among US-Bound Refugees, 2020-2022
Emerging Infectious Diseases
|July 24, 2025
Summary
Predeparture COVID-19 testing identified a 2.6% positivity rate among US-bound refugees. Vaccination coverage increased significantly, reaching 71% for adult refugees by late 2022.
Area of Science:
- Public Health
- Infectious Disease Epidemiology
- Immigration Health
Background:
- Understanding the health status of refugees before arrival is crucial for public health.
- COVID-19 posed a significant global health challenge, impacting all populations, including vulnerable groups like refugees.
- Data on pre-travel COVID-19 testing and vaccination for refugees resettling in the US were limited.
Purpose of the Study:
- To characterize predeparture COVID-19 test positivity rates among refugees destined for the United States.
- To assess the trends and coverage of COVID-19 vaccination among US-bound adult refugees.
- To inform public health strategies for refugee resettlement and disease prevention.
Main Methods:
- Analysis of predeparture COVID-19 testing data for US-bound refugees from November 2020 to June 2022.
- Review of vaccination records for adult US-bound refugees from November 2020 to December 2022.
- Calculation of positivity rates and vaccination coverage percentages.
Main Results:
- A total of 23,972 refugees underwent 28,465 COVID-19 tests, with 2.6% testing positive.
- Reverse transcription PCR (RT-PCR) accounted for 87% of all tests performed.
- COVID-19 vaccination coverage among 24,831 adult refugees increased from 0% to 71% during the study period.
Conclusions:
- Predeparture COVID-19 screening identified a low but present positivity rate among US-bound refugees.
- Significant progress was made in increasing COVID-19 vaccination coverage within this population.
- These findings support the importance of pre-travel health screenings and vaccination initiatives for refugee resettlement.
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