Open forum infectious diseases · 2025
Clinical Findings in Migrants With Asymptomatic Plasmodium Infections.
СтатьяНазвание и аннотация: Перевод в очереди
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Eliasson Isabelle, Wyss Katja, Tafesse Bogale Rebecca, Forsblom Sofia, Lindquist Emil, Rönnberg Caroline, Hansson Magnus, Beshara Soheir, Nordling Irene, Hertting Olof, Wångdahl Andreas, Färnert Anna
Аннотация
BACKGROUND: Migrants from malaria-endemic areas may have asymptomatic parasitemia that persists after relocating to nonendemic countries. Recommendations on malaria screening and treatment of asymptomatic infections in migrants are lacking. The aim of this study was to explore the clinical features of subclinical blood-stage Plasmodium infections in migrants, to inform screening and management strategies.
METHODS: A retrospective observational study was performed to evaluate clinical data from medical records of asymptomatic sub-Saharan African migrants identified with parasitic infection within a screening study in Stockholm, Sweden. Clinical data from hospital outpatient visits were compared between malaria polymerase chain reaction (PCR)-positive and PCR-negative individuals, the latter assessed for schistosomiasis and/or strongyloidiasis.
RESULTS: Clinical features and chemistry tests from 65 Plasmodium PCR-positive individuals were compared with data from 54 PCR-negative individuals. Study participants with Plasmodium infection had a higher proportion of anemia (21.1% vs 6.1%, P = .048), elevated erythrocyte sedimentation rate (ESR) (58.1% vs 25.0%, P = .008), raised plasma/serum immunoglobulin M (30.5% vs 10.5%, P = .030), and splenomegaly (25.4% vs 2.5%, P = .002). After antimalarial treatment, splenomegaly and laboratory parameters improved in Plasmodium-infected individuals.
CONCLUSIONS: Migrants with subclinical Plasmodium infection have a high proportion of splenomegaly and abnormal laboratory findings, such as anemia and elevated ESR. Screening and treatment of subclinical malaria infections could prevent adverse outcomes and should be considered both in endemic and nonendemic settings.
METHODS: A retrospective observational study was performed to evaluate clinical data from medical records of asymptomatic sub-Saharan African migrants identified with parasitic infection within a screening study in Stockholm, Sweden. Clinical data from hospital outpatient visits were compared between malaria polymerase chain reaction (PCR)-positive and PCR-negative individuals, the latter assessed for schistosomiasis and/or strongyloidiasis.
RESULTS: Clinical features and chemistry tests from 65 Plasmodium PCR-positive individuals were compared with data from 54 PCR-negative individuals. Study participants with Plasmodium infection had a higher proportion of anemia (21.1% vs 6.1%, P = .048), elevated erythrocyte sedimentation rate (ESR) (58.1% vs 25.0%, P = .008), raised plasma/serum immunoglobulin M (30.5% vs 10.5%, P = .030), and splenomegaly (25.4% vs 2.5%, P = .002). After antimalarial treatment, splenomegaly and laboratory parameters improved in Plasmodium-infected individuals.
CONCLUSIONS: Migrants with subclinical Plasmodium infection have a high proportion of splenomegaly and abnormal laboratory findings, such as anemia and elevated ESR. Screening and treatment of subclinical malaria infections could prevent adverse outcomes and should be considered both in endemic and nonendemic settings.