Accuracy of Mobile Phone and Handheld Light Microscopy for the Diagnosis of Schistosomiasis and Intestinal Protozoa Infections in Côte d’Ivoire
Publication Date
June 27, 2016
Journal
PLOS Neglected Tropical Diseases
Authors
Jean T. Coulibaly, Mamadou Ouattara, Michael V. D’ambrosio, Daniel A. Fletcher, et al
Volume
10
Issue
6
Pages
e0004768
DOI
https://dx.plos.org/10.1371/journal.pntd.0004768
Publisher URL
http://journals.plos.org/plosntds/article?id=10.1371%2Fjournal.pntd.0004768
Web of Science
000379346200031
Scopus
84979035646
Mendeley
http://www.mendeley.com/research/accuracy-mobile-phone-handheld-light-microscopy-diagnosis-schistosomiasis-intestinal-protozoa-infect
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Mendeley | Further Information

{"title"=>"Accuracy of Mobile Phone and Handheld Light Microscopy for the Diagnosis of Schistosomiasis and Intestinal Protozoa Infections in Côte d’Ivoire", "type"=>"journal", "authors"=>[{"first_name"=>"Jean T.", "last_name"=>"Coulibaly", "scopus_author_id"=>"41260999100"}, {"first_name"=>"Mamadou", "last_name"=>"Ouattara", "scopus_author_id"=>"16638901300"}, {"first_name"=>"Michael V.", "last_name"=>"D’Ambrosio", "scopus_author_id"=>"57190307078"}, {"first_name"=>"Daniel A.", "last_name"=>"Fletcher", "scopus_author_id"=>"7202087947"}, {"first_name"=>"Jennifer", "last_name"=>"Keiser", "scopus_author_id"=>"32867784000"}, {"first_name"=>"Jürg", "last_name"=>"Utzinger", "scopus_author_id"=>"7003667858"}, {"first_name"=>"Eliézer K.", "last_name"=>"N’Goran", "scopus_author_id"=>"55341594300"}, {"first_name"=>"Jason R.", "last_name"=>"Andrews", "scopus_author_id"=>"15058787200"}, {"first_name"=>"Isaac I.", "last_name"=>"Bogoch", "scopus_author_id"=>"6506268396"}], "year"=>2016, "source"=>"PLoS Neglected Tropical Diseases", "identifiers"=>{"pmid"=>"27348755", "scopus"=>"2-s2.0-84979035646", "pui"=>"611099161", "issn"=>"19352735", "isbn"=>"1935-2727", "doi"=>"10.1371/journal.pntd.0004768", "sgr"=>"84979035646"}, "id"=>"82073d0c-2e05-30ce-8248-744d282a3b72", "abstract"=>"BACKGROUND Handheld light microscopy using compact optics and mobile phones may improve the quality of health care in resource-constrained settings by enabling access to prompt and accurate diagnosis. METHODOLOGY Laboratory technicians were trained to operate two handheld diagnostic devices (Newton Nm1 microscope and a clip-on version of the mobile phone-based CellScope). The accuracy of these devices was compared to conventional light microscopy for the diagnosis of Schistosoma haematobium, S. mansoni, and intestinal protozoa infection in a community-based survey in rural Côte d'Ivoire. One slide of 10 ml filtered urine and a single Kato-Katz thick smear from 226 individuals were subjected to the Newton Nm1 microscope and CellScope for detection of Schistosoma eggs and compared to conventional microscopy. Additionally, 121 sodium acetate-acetic acid-formalin (SAF)-fixed stool samples were examined by the Newton Nm1 microscope and compared to conventional microscopy for the diagnosis of intestinal protozoa. PRINCIPAL FINDINGS The prevalence of S. haematobium, S. mansoni, Giardia intestinalis, and Entamoeba histolytica/E. dispar, as determined by conventional microscopy, was 39.8%, 5.3%, 20.7%, and 4.9%, respectively. The Newton Nm1 microscope had diagnostic sensitivities for S. mansoni and S. haematobium infection of 91.7% (95% confidence interval (CI) 59.8-99.6%) and 81.1% (95% CI 71.2-88.3%), respectively, and specificities of 99.5% (95% CI 97.0-100%) and 97.1% (95% CI 92.2-99.1%), respectively. The CellScope demonstrated sensitivities for S. mansoni and S. haematobium of 50.0% (95% CI 25.4-74.6%) and 35.6% (95% CI 25.9-46.4%), respectively, and specificities of 99.5% (95% CI 97.0-100%) and 100% (95% CI 86.7-100%), respectively. For G. intestinalis and E. histolytica/E. dispar, the Newton Nm1 microscope had sensitivity of 84.0% (95% CI 63.1-94.7%) and 83.3% (95% CI 36.5-99.1%), respectively, and 100% specificity. CONCLUSIONS/SIGNIFICANCE Handheld diagnostic devices can be employed in community-based surveys in resource-constrained settings after minimal training of laboratory technicians to diagnose intestinal parasites.", "link"=>"http://www.mendeley.com/research/accuracy-mobile-phone-handheld-light-microscopy-diagnosis-schistosomiasis-intestinal-protozoa-infect", "reader_count"=>36, "reader_count_by_academic_status"=>{"Unspecified"=>1, "Professor > Associate Professor"=>1, "Researcher"=>3, "Student > Doctoral Student"=>1, "Student > Ph. D. Student"=>13, "Student > Postgraduate"=>3, "Other"=>1, "Student > Master"=>2, "Student > Bachelor"=>6, "Lecturer"=>1, "Lecturer > Senior Lecturer"=>1, "Professor"=>3}, "reader_count_by_user_role"=>{"Unspecified"=>1, "Professor > Associate Professor"=>1, "Researcher"=>3, "Student > Doctoral Student"=>1, "Student > Ph. D. Student"=>13, "Student > Postgraduate"=>3, "Other"=>1, "Student > Master"=>2, "Student > Bachelor"=>6, "Lecturer"=>1, "Lecturer > Senior Lecturer"=>1, "Professor"=>3}, "reader_count_by_subject_area"=>{"Engineering"=>7, "Unspecified"=>2, "Nursing and Health Professions"=>1, "Biochemistry, Genetics and Molecular Biology"=>2, "Medicine and Dentistry"=>9, "Agricultural and Biological Sciences"=>5, "Neuroscience"=>1, "Pharmacology, Toxicology and Pharmaceutical Science"=>2, "Physics and Astronomy"=>1, "Chemistry"=>3, "Immunology and Microbiology"=>3}, "reader_count_by_subdiscipline"=>{"Engineering"=>{"Engineering"=>7}, "Medicine and Dentistry"=>{"Medicine and Dentistry"=>9}, "Neuroscience"=>{"Neuroscience"=>1}, "Chemistry"=>{"Chemistry"=>3}, "Physics and Astronomy"=>{"Physics and Astronomy"=>1}, "Immunology and Microbiology"=>{"Immunology and Microbiology"=>3}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>5}, "Nursing and Health Professions"=>{"Nursing and Health Professions"=>1}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>2}, "Unspecified"=>{"Unspecified"=>2}, "Pharmacology, Toxicology and Pharmaceutical Science"=>{"Pharmacology, Toxicology and Pharmaceutical Science"=>2}}, "reader_count_by_country"=>{"South Africa"=>1}, "group_count"=>1}

Scopus | Further Information

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