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High Prevalence of Strongyloides among South Asian Migrants in Primary Care―Associations with Eosinophilia and Gastrointestinal Symptoms
Open AccessArticle

High Prevalence of Strongyloidiasis in Spain: A Hospital-Based Study

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Barcelona Institute for Global Health, ISGlobal-Hospital Clinic, Universitat de Barcelona, 08036 Barcelona, Spain
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Department of Global Public Health, Karolinska Institutet, 171 77 Solna, Sweden
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Tropical Medicine Unit, Hospital de Poniente, El Ejido, 04700 Almería, Spain
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Department of Infectious Diseases, Vall d’Hebron University Hospital, PROSICS Barcelona, 08035 Barcelona, Spain
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Department of Infectious Diseases, Hospital Universitari Bellvitge, 08907 Barcelona, Spain
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Infectious Diseases Department, Hospital del Mar-IMIM, 08003 Barcelona, Spain
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Department of Microbiology, Hospital Sant Pau, 08041 Barcelona, Spain
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Department of Infectious Diseases, Hospital Clinic, 08036 Barcelona, Spain
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Department of Microbiology, Vall d’Hebron University Hospital, PROSICS Barcelona, 08035 Barcelona, Spain
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Department of Microbiology, Hospital Universitari Bellvitge, 08907 Barcelona, Spain
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Tropical Medicine Unit, Distrito Poniente, 04700 Almería, Spain
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Tropical Medicine Unit Vall d’Hebron-Drassanes, PROSICS Barcelona, 08035 Barcelona, Spain
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Parasitology Department, Centro Nacional de Microbiologia—Instituto de Salud Carlos III, 28020 Madrid, Spain
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Department of Microbiology, Hospital Clínic, Barcelona 08036, Spain
*
Author to whom correspondence should be addressed.
STRONG-SEMTSI Working Group: Manuel Jesús Soriano-Pérez, Ana Belén Lozano-Serrano, Gracia Cruz, Philip Wikman, Guillermo Girones, Jose Maria Saugar, Mercè Gurgui Ferrer, Lorena Soto Reyes.
Pathogens 2020, 9(2), 107; https://doi.org/10.3390/pathogens9020107
Received: 11 January 2020 / Revised: 7 February 2020 / Accepted: 8 February 2020 / Published: 11 February 2020
(This article belongs to the Special Issue Prevalence of Strongyloidiasis and Schistosomiasis)
Introduction: Strongyloidiasis is a prevailing helminth infection ubiquitous in tropical and subtropical areas, however, seroprevalence data are scarce in migrant populations, particularly for those coming for Asia. Methods: This study aims at evaluating the prevalence of S. stercoralis at the hospital level in migrant populations or long term travellers being attended in out-patient and in-patient units as part of a systematic screening implemented in six Spanish hospitals. A cross-sectional study was conducted and systematic screening for S. stercoralis infection using serological tests was offered to all eligible participants. Results: The overall seroprevalence of S. stercoralis was 9.04% (95%CI 7.76–10.31). The seroprevalence of people with a risk of infection acquired in Africa and Latin America was 9.35% (95%CI 7.01–11.69), 9.22% (7.5–10.93), respectively. The number of individuals coming from Asian countries was significantly smaller and the overall prevalence in these countries was 2.9% (95%CI −0.3–6.2). The seroprevalence in units attending potentially immunosuppressed patients was significantly lower (5.64%) compared with other units of the hospital (10.20%) or Tropical diseases units (13.33%) (p < 0.001). Conclusions: We report a hospital-based strongyloidiasis seroprevalence of almost 10% in a mobile population coming from endemic areas suggesting the need of implementing strongyloidiasis screening in hospitalized patients coming from endemic areas, particularly if they are at risk of immunosuppression.
Keywords: strongyloidiasis; Strongyloides stercoralis; prevalence; migrants; Spain strongyloidiasis; Strongyloides stercoralis; prevalence; migrants; Spain
MDPI and ACS Style

Requena-Méndez, A.; Salas-Coronas, J.; Salvador, F.; Gomez-Junyent, J.; Villar-Garcia, J.; Santin, M.; Muñoz, C.; González-Cordón, A.; Cabezas Fernández, M.T.; Sulleiro, E.; Arenas, M.M.; Somoza, D.; Vazquez-Villegas, J.; Treviño, B.; Rodríguez, E.; Valls, M.E.; LLaberia-Marcual, J.; Subirá, C.; Muñoz, J., on behalf of the STRONG-SEMTSI Working Group; High Prevalence of Strongyloidiasis in Spain: A Hospital-Based Study. Pathogens 2020, 9, 107.

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