{"doi":"10.1093/cid/ciab393","title":"The Operational Feasibility of Vaccination Programs Targeting Influenza Risk Groups in the World Health Organization (WHO) African and South-East Asian Regions","abstract":"BACKGROUND: Influenza vaccination is uncommon in low-resource settings. We evaluated aspects of operational feasibility of influenza vaccination programs targeting risk groups in the World Health Organization (WHO) African (AFR) and South-East Asian (SEAR) Regions. METHODS: We estimated routine immunization and influenza vaccination campaign doses, doses per vaccinator, and cold storage requirements for 1 simulated country in each region using evidence-based population distribution, vaccination schedule, and vaccine volumes. Influenza vaccination targeted persons <5 years, pregnant women, persons with chronic diseases, persons ≥65 years, and healthcare workers (HCW). For the AFR country, we compared vaccine volumes to actual storage capacities. RESULTS: Targeting HCW had a small operational impact, and subsequent findings exclude this group. During 3-month influenza vaccination campaigns, monthly doses delivered in the AFR country increased from 15.0% for ≥65 years to 93.1% for <5 years and in the SEAR country from 19.6% for pregnant women to 145.0% for persons with chronic diseases. National-level cold storage capacity requirements increased in the AFR country from 4.1% for ≥65 years to 20.3% for <5 years and in the SEAR country from 3.9% for pregnant women to 28.8% for persons with chronic diseases. Subnational-level cold storage capacity requirements increased in the AFR country from 5.9% for ≥65 years to 36.8% for <5 years and the SEAR country from 17.6% for pregnant women to 56.0% for persons with chronic diseases. CONCLUSIONS: Influenza vaccination of most risk groups will require substantial increases in doses, doses per vaccinator, and cold storage capacity in countries where infrastructure and resources are limited.","journal":"Clinical Infectious Diseases","year":2021,"id":196765,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":5,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.7879,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2021-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":226542,"name":"Stephen Yu","orcid":"0000-0002-0107-5771","position":1,"is_corresponding":false},{"id":227086,"name":"Amanda J. Driscoll","orcid":"0000-0003-1385-960X","position":2,"is_corresponding":false},{"id":559412,"name":"Sarah Williams","orcid":"0000-0002-7413-0233","position":3,"is_corresponding":false},{"id":559410,"name":"Joanie Robertson","orcid":"0000-0002-6648-2976","position":4,"is_corresponding":false},{"id":559411,"name":"Jui-Shan Hsu","orcid":"0000-0001-6382-1920","position":5,"is_corresponding":false},{"id":415859,"name":"Wilbur H. Chen","orcid":"0000-0001-7741-5536","position":6,"is_corresponding":false},{"id":560016,"name":"Robin Biellik","orcid":null,"position":7,"is_corresponding":false},{"id":299788,"name":"Samba O. Sow","orcid":"0000-0002-6335-5066","position":8,"is_corresponding":false},{"id":378162,"name":"Sonali Kochhar","orcid":"0000-0002-1150-5691","position":9,"is_corresponding":false},{"id":38212,"name":"Kathleen M. Neuzil","orcid":"0000-0001-9480-2714","position":10,"is_corresponding":false},{"id":61306,"name":"Justin R. Ortiz","orcid":"0000-0002-3138-5965","position":0,"is_corresponding":true}],"reference_count":20,"raw_metadata":null,"created_at":"2026-07-18T23:50:15.704473Z","pmid":"33949661","pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}