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Field Evaluation of...
Field Evaluation of a High Throughput Loop Mediated Isothermal Amplification Test for the Detection of Asymptomatic Plasmodium Infections in Zanzibar
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- Aydin-Schmidt, Berit (författare)
- Karolinska Institutet
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- Morris, Ulrika (författare)
- Karolinska Institutet
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- Ding, Xavier C. (författare)
- FIND, Geneva, Switzerland.
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- Jovel, Irina (författare)
- Karolinska Institutet
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- Msellem, Mwinyi I. (författare)
- Minist Hlth, Zanzibar Malaria Eliminat Programme, Zanzibar, Tanzania.
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- Bergman, Daniel (författare)
- Karolinska Inst, Dept Microbiol Tumor & Cell Biol, Ctr Malaria Res, Stockholm, Sweden.
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- Islam, Atiqul (författare)
- Karolinska Institutet
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- Ali, Abdullah S. (författare)
- Minist Hlth, Zanzibar Malaria Eliminat Programme, Zanzibar, Tanzania.
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- Polley, Spencer (författare)
- NHS Fdn Trust, Univ Coll London Hosp, Hosp Trop Dis, Dept Clin Parasitol, London, England.
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- Gonzalez, Iveth J. (författare)
- FIND, Geneva, Switzerland.
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- Mårtensson, Andreas (författare)
- Uppsala universitet,Internationell mödra- och barnhälsovård (IMCH)
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- Björkman, Anders (författare)
- Karolinska Institutet
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Karolinska Institutet FIND, Geneva, Switzerland (creator_code:org_t)
- 2017-01-17
- 2017
- Engelska.
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Ingår i: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 12:1
- Relaterad länk:
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https://uu.diva-port... (primary) (Raw object)
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https://journals.plo...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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http://kipublication...
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Abstract
Ämnesord
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- Background New field applicable diagnostic tools are needed for highly sensitive detection of residual malaria infections in pre-elimination settings. Field performance of a high throughput DNA extraction system for loop mediated isothermal amplification (HTP-LAMP) was therefore evaluated for detecting malaria parasites among asymptomatic individuals in Zanzibar. Methods HTP-LAMP performance was evaluated against real-time PCR on 3008 paired blood samples collected on filter papers in a community-based survey in 2015. Results The PCR and HTP-LAMP determined malaria prevalences were 1.6% (95% CI 1.3-2.4) and 0.7% (95% CI 0.4-1.1), respectively. The sensitivity of HTP-LAMP compared to PCR was 40.8% (CI95% 27.0-55.8) and the specificity was 99.9% (CI95% 99.8-100). For the PCR positive samples, there was no statistically significant difference between the geometric mean parasite densities among the HTP-LAMP positive (2.5 p/mu L, range 0.2-770) and HTP-LAMP negative (1.4 p/mu L, range 0.1-7) samples (p = 0.088). Two lab technicians analysed up to 282 samples per day and the HTP-LAMP method was experienced as user friendly. Conclusions Although field applicable, this high throughput format of LAMP as used here was not sensitive enough to be recommended for detection of asymptomatic low-density infections in areas like Zanzibar, approaching malaria elimination.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Infektionsmedicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Infectious Medicine (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Pediatrik (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Pediatrics (hsv//eng)
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Aydin-Schmidt, B ...
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Morris, Ulrika
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Ding, Xavier C.
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Jovel, Irina
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Msellem, Mwinyi ...
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Bergman, Daniel
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visa fler...
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Islam, Atiqul
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Ali, Abdullah S.
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Polley, Spencer
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Gonzalez, Iveth ...
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Mårtensson, Andr ...
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Björkman, Anders
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- MEDICIN OCH HÄLSOVETENSKAP
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MEDICIN OCH HÄLS ...
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och Pediatrik
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Karolinska Institutet