ArticleThe American journal of tropical medicine and hygiene2020
Operational Coverage and Timeliness of Reactive Case Detection for Malaria Elimination in Zanzibar, Tanzania.
Article in The American journal of tropical medicine and hygiene, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.
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Who cites it
18 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 citations in OpenAlex.
- Reactive Case Detection and Treatment and Reactive Drug Administration for Reducing Malaria Transmission: A Systematic Review and Meta-Analysis.The American journal of tropical medicine and hygiene · 2024Pooled it
- Trial
- The November-2023-March-2024 malaria epidemic in Zanzibar: a spatiotemporal epidemiological analysis.Malaria journal · 2025Article
- Determinants of locally acquired malaria infections in Zanzibar: a cross-sectional study.Malaria journal · 2025Article
- A combined school survey and reactive case detection reveals minimal local transmission of malaria in the Highlands Region of Papua New Guinea.Malaria journal · 2025Article
- Implementation and fidelity of reactive surveillance and response strategies for malaria elimination: a systematic review and meta-analysis.BMJ public health · 2025Article
- Challenges in diagnosis of clinical and subclinical Plasmodium falciparum infections in Ghana and feasibility of reactive interventions to shrink the subclinical reservoir.Malaria journal · 2024Article
- Test-treat-track-test-treat (5T) approach for Schistosoma haematobium elimination on Pemba Island, Tanzania.BMC infectious diseases · 2024Article
- Using a mobile nanopore sequencing lab for end-to-end genomic surveillance of Plasmodium falciparum: A feasibility study.PLOS global public health · 2024Article
- Risk of imported malaria infections in Zanzibar: a cross-sectional study.Infectious diseases of poverty · 2023Article
- Multiplexed ddPCR-amplicon sequencing reveals isolated Plasmodium falciparum populations amenable to local elimination in Zanzibar, Tanzania.Nature communications · 2023Article
- Modelling the impact of interventions on imported, introduced and indigenous malaria infections in Zanzibar, Tanzania.Nature communications · 2023Article
- Digital Technologies to Enhance Infectious Disease Surveillance in Tanzania: A Scoping Review.Healthcare (Basel, Switzerland) · 2023Article
- Trends in treatment-seeking for fever in children under five years old in 151 countries from 1990 to 2020.PLOS global public health · 2023Article
- Malaria elimination in Zanzibar: where next?The Pan African medical journal · 2023Article
- The impact of reactive case detection on malaria transmission in Zanzibar in the presence of human mobility.Epidemics · 2022Article
- Malaria infection prevalence and sensitivity of reactive case detection in Zanzibar.International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2020Article
- Molecular methods for tracking residual Plasmodium falciparum transmission in a close-to-elimination setting in Zanzibar.Malaria journal · 2020Article
Corrections and comments
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Authors and funding
7 authors at 5 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Since 2012, the Zanzibar Malaria Elimination Program has been implementing reactive case detection (RACD). Health facility (HF) staff send individual malaria case notifications by using mobile phones, triggering a review of HF records and malaria testing and treatment at the household level by a district malaria surveillance officer. We assessed the completeness and timeliness of this system, from case notification to household-level response. We reviewed two years (2015-2016) of primary register information in 40 randomly selected HFs on Zanzibar's two islands Unguja and Pemba and database records of case notifications from all registered HFs for the period 2013-16. The operational coverage of the system was calculated as proportion of HF-registered cases that were successfully reviewed and followed up at their household. Timeliness was defined as completion of each step within 1 day. Public HFs notified almost all registered cases (91% in Unguja and 87% in Pemba), and 74% of cases registered at public HFs were successfully followed up at their household in Unguja and 79% in Pemba. Timely operational coverage (defined as each step, diagnosis to notification, notification to review, and review to household-level response, completed within 1 day) was achieved for only 25% of registered cases in Unguja and 30% in Pemba. Records and data from private HFs on Unguja indicated poor notification performance in the private sector. Although the RACD system in Zanzibar achieved high operational coverage, timeliness was suboptimal. Patients diagnosed with malaria at private HFs and hospitals appeared to be largely missed by the RACD system.
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