Publications

Coffeng L.E, Vlaminck J, Cools P, Denwood M, Albonico M, Ame S.M, Ayana M, Dana D, Cringoli G, de Vlas S.J, Fenwick A, French M, Kazienga A, Keiser J, Knopp S, Leta G, Matoso L.F, Maurelli M.P, Montresor A, Mirams G, Mekonnen Z, Corrêa-Oliveira R, Pinto S.A, Rinaldi L, Sayasone S, Steinmann P, Thomas E, Vercruysse J, Levecke B. A general framework to support cost-efficient fecal egg count methods and study design choices for large-scale STH deworming programs-monitoring of therapeutic drug efficacy as a case study. PLoS Negl Trop Dis. 2023;17(5):e0011071. DOI: 10.1371/journal.pntd.0011071

Trippler L, Knopp S, Welsche S, Webster B.L, Stothard J.R, Blair L, Allan F, Ame S.M, Juma S, Kabole F, Ali S.M, Rollinson D, Pennance T. The long road to schistosomiasis elimination in Zanzibar: a systematic review covering 100 years of research, interventions and control milestones. Adv Parasitol. 2023;122:71-191. DOI: 10.1016/bs.apar.2023.06.001

De Rosa E, Person B, Knopp S, Ali J.M, Lyimo J.H, Kabole F, Rollinson D. A descriptive qualitative case study of the experiences, perceptions, and attitudes of pregnant women on Unguja island, Zanzibar, towards antischistosomal treatment. Acta Trop. 2022;225:106143. DOI: 10.1016/j.actatropica.2021.106143

Hoekstra P.T, Casacuberta-Partal M, van Lieshout L, Corstjens Plam, Tsonaka R, Assaré R.K, Silué K.D, N'Goran E.K, N'Gbesso Y.K, Brienen E.A.T, Roestenberg M, Knopp S, Utzinger J, Coulibaly J.T, van Dam G.J. Limited efficacy of repeated praziquantel treatment in Schistosoma mansoni infections as revealed by highly accurate diagnostics, PCR and UCP-LF CAA (RePST trial). PLoS Negl Trop Dis. 2022;16(12):e0011008. DOI: 10.1371/journal.pntd.0011008

Pennance T, Ame S.M, Amour A.K, Suleiman K.R, Muhsin M.A, Kabole F, Ali S.M, Archer J, Allan F, Emery A, Rabone M, Knopp S, Rollinson D, Cable J, Webster B.L. Transmission and diversity of Schistosoma haematobium and S. bovis and their freshwater intermediate snail hosts Bulinus globosus and B. nasutus in the Zanzibar Archipelago, United Republic of Tanzania. PLoS Negl Trop Dis. 2022;16(7):e0010585. DOI: 10.1371/journal.pntd.0010585

Pennance T, Neves M.I, Webster B.L, Gower C.M, Knopp S, Khamis I.S, Ame S.M, Ali S.M, Rabone M, Emery A, Allan F, Muhsin M.A, Suleiman K.R, Kabole F, Walker M, Rollinson D, Webster J.P. Potential drivers for schistosomiasis persistence: population genetic analyses from a cluster-randomized urogenital schistosomiasis elimination trial across the Zanzibar islands. PLoS Negl Trop Dis. 2022;16(10):e0010419. DOI: 10.1371/journal.pntd.0010419

Trippler L, Ali M.N, Ame S.M, Ali S.M, Kabole F, Hattendorf J, Knopp S. GPS-based fine-scale mapping surveys for schistosomiasis assessment: a practical introduction and documentation of field implementation. Infect Dis Poverty. 2022;11:8. DOI: 10.1186/s40249-021-00928-y

Trippler L, Ali S.M, Ame S.M, Hattendorf J, Suleiman K.R, Ali M.N, Juma S, Kabole F, Knopp S. Fine-scale-mapping of Schistosoma haematobium infections at the school and community levels and intermediate host snail abundance in the north of Pemba Island: baseline cross-sectional survey findings before the onset of a 3-year intervention stu. Parasit Vectors. 2022;15:292. DOI: 10.1186/s13071-022-05404-6

Klohe K, Koudou B.G, Fenwick A, Fleming F, Garba A, Gouvras A, Harding-Esch E.M, Knopp S, Molyneux D, D'Souza S, Utzinger J, Vounatsou P, Waltz J, Zhang Y, Rollinson D. A systematic literature review of schistosomiasis in urban and peri-urban settings. PLoS Negl Trop Dis. 2021;15(2):e0008995. DOI: 10.1371/journal.pntd.0008995

Pearson M.S, Tedla B.A, Mekonnen G.G, Proietti C, Becker L, Nakajima R, Jasinskas A, Doolan D.L, Amoah A.S, Knopp S, Rollinson D, Ali S.M, Kabole F, Hokke C.H, Adegnika A.A, Field M.A, van Dam G, Corstjens P.L.A.M, Mduluza T, Mutapi F, Oeuvray C, Greco B, Chaiyadet S, Laha T, Cai P, McManus D.P, Bottazzi M.E, Felgner P.L, Sotillo J, Loukas A. Immunomics-guided discovery of serum and urine antibodies for diagnosing urogenital schistosomiasis: a biomarker identification study. Lancet Microbe. 2021;2(11):e617-e626. DOI: 10.1016/S2666-5247(21)00150-6

Person B, Rollinson D, Ali S.M, Mohammed U.A, A'Kadir F M, Kabole F, Knopp S. Evaluation of a urogenital schistosomiasis behavioural intervention among students from rural schools in Unguja and Pemba islands, Zanzibar. Acta Trop. 2021;220:105960. DOI: 10.1016/j.actatropica.2021.105960

Trippler L, Ame S.M, Hattendorf J, Juma S, Abubakar S, Ali S.M, Kabole F, Rollinson D, Knopp S. Impact of seven years of mass drug administration and recrudescence of Schistosoma haematobium infections after one year of treatment gap in Zanzibar: repeated cross-sectional studies. PLoS Negl Trop Dis. 2021;15(2):e0009127. DOI: 10.1371/journal.pntd.0009127

Trippler L, Hattendorf J, Ali S.M, Ame S.M, Juma S, Kabole F, Knopp S. Novel tools and strategies for breaking schistosomiasis transmission: study protocol for an intervention study. BMC Infect Dis. 2021;21:1024. DOI: 10.1186/s12879-021-06620-8

Allan F, Ame S.M, Tian-Bi Y.T, Hofkin B.V, Webster B.L, Diakité N.R, N'Goran E.K, Kabole F, Khamis I.S, Gouvras A.N, Emery A.M, Pennance T, Rabone M, Kinung'hi S, Hamidou A.A, Mkoji G.M, McLaughlin J.P, Kuris A.M, Loker E.S, Knopp S, Rollinson D. Snail-related contributions from the Schistosomiasis Consortium for Operational Research and Evaluation program including xenomonitoring, focal mollusciciding, biological control, and modeling. Am J Trop Med Hyg. 2020;103(Suppl. 1):66-79. DOI: 10.4269/ajtmh.19-0831

Archer J, Barksby R, Pennance T, Rostron P, Bakar F, Knopp S, Allan F, Kabole F, Ali S.M, Ame S.M, Rollinson D, Webster B.L. Analytical and clinical assessment of a portable, isothermal recombinase polymerase amplification (RPA) assay for the molecular diagnosis of urogenital schistosomiasis. Molecules. 2020;25(18):4175. DOI: 10.3390/molecules25184175

Campbell C.H, Binder S, King C.H, Knopp S, Rollinson D, Person B, Webster B, Allan F, Utzinger J, Ame S.M, Ali S.M, Kabole F, N'Goran E.K, Tediosi F, Salari P, Ouattara M, Diakite N.R, Hattendorf J, Andros T, Kittur N, Colley D.G. SCORE operational research on moving toward interruption of schistosomiasis transmission. Am J Trop Med Hyg. 2020;103(Suppl. 1):58-65. DOI: 10.4269/ajtmh.19-0825

Colley D.G, Fleming F.M, Matendechero S.H, Knopp S, Rollinson D, Utzinger J, Castleman J.D, Kittur N, King C.H, Campbell C.H, Kabole F.M, Kinung'hi S, Ramzy R.M.R, Binder S. Contributions of the Schistosomiasis Consortium for Operational Research and Evaluation (SCORE) to schistosomiasis control and elimination: key findings and messages for future goals, thresholds, and operational research. Am J Trop Med Hyg. 2020;103(Suppl. 1):125-134. DOI: 10.4269/ajtmh.19-0787

Corstjens P.L.A.M, de Dood C.J, Knopp S, Clements M.N, Ortu G, Umulisa I, Ruberanziza E, Wittmann U, Kariuki T, LoVerde P, Secor W.E, Atkins L, Kinung'hi S, Binder S, Campbell C.H, Colley D.G, van Dam G.J. Circulating Anodic Antigen (CAA): a highly sensitive diagnostic biomarker to detect active Schistosoma infections-improvement and use during SCORE. Am J Trop Med Hyg. 2020;103(Suppl. 1):50-57. DOI: 10.4269/ajtmh.19-0819

Hoekstra P.T, Casacuberta-Partal M, van Lieshout L, Corstjens Plam, Tsonaka R, Assaré R.K, Silue K.D, Meite A, N'Goran E.K, N'Gbesso Y.K, Amoah A.S, Roestenberg M, Knopp S, Utzinger J, Coulibaly J.T, van Dam G.J. Efficacy of single versus four repeated doses of praziquantel against Schistosoma mansoni infection in school-aged children from Côte d'Ivoire based on Kato-Katz and POC-CCA: an open-label, randomised controlled trial (RePST). PLoS Negl Trop Dis. 2020;14(3):e0008189. DOI: 10.1371/journal.pntd.0008189

Keller D, Rothen J, Dangy J.P, Saner C, Daubenberger C, Allan F, Ame S.M, Ali S.M, Kabole F, Hattendorf J, Rollinson D, Seyfarth R, Knopp S. Performance of a real-time PCR approach for diagnosing Schistosoma haematobium infections of different intensity in urine samples from Zanzibar. Infect Dis Poverty. 2020;9:128. DOI: 10.1186/s40249-020-00726-y

Kittur N, Campbell C.H, Binder S, Shen Y, Wiegand R, Mwanga J.R, Kinung'hi S.M, Musuva R.M, Odiere M.R, Matendechero S.H, Knopp S, Colley D.G. Discovering, defining, and summarizing persistent hotspots in SCORE studies. Am J Trop Med Hyg. 2020;103(Suppl. 1):24-29. DOI: 10.4269/ajtmh.19-0815

Monnier N, Barth-Jaeggi T, Knopp S, Steinmann P. Core components, concepts and strategies for parasitic and vector-borne disease elimination with a focus on schistosomiasis: a landscape analysis. PLoS Negl Trop Dis. 2020;14(10):e0008837. DOI: 10.1371/journal.pntd.0008837

Moser W, Keiser J, Speich B, Sayasone S, Knopp S, Hattendorf J. One mean to rule them all? The arithmetic mean based egg reduction rate can be misleading when estimating anthelminthic drug efficacy in clinical trials. PLoS Negl Trop Dis. 2020;14(4):e0008185. DOI: 10.1371/journal.pntd.0008185

Pennance T, Archer J, Lugli E.B, Rostron P, Llanwarne F, Ali S.M, Amour A.K, Suleiman K.R, Li S, Rollinson D, Cable J, Knopp S, Allan F, Ame S.M, Webster B.L. Development of a molecular snail xenomonitoring assay to detect Schistosoma haematobium and Schistosoma bovis infections in their Bulinus snail hosts. Molecules. 2020;25(17):4011. DOI: 10.3390/molecules25174011

Salari P, Fürst T, Knopp S, Rollinson D, Kabole F, Khamis M.I, Omar M.A, Bacon O, Ali S.M, Utzinger J, Tediosi F. Financial costs of the Zanzibar elimination of schistosomiasis transmission project. Am J Trop Med Hyg. 2020;103(6):2260-2267. DOI: 10.4269/ajtmh.20-0252

Salari P, Fürst T, Knopp S, Utzinger J, Tediosi F. Cost of interventions to control schistosomiasis: a systematic review of the literature. PLoS Negl Trop Dis. 2020;14(3):e0008098. DOI: 10.1371/journal.pntd.0008098

The Economist Intelligence Unit. Breaking the cycle of neglect: reducing the economic and societal burden of parasitic worms in sub-Saharan Africa. London: The Economist Intelligence Unit Limited, 2020

Knopp S, Ame S.M, Hattendorf J, Ali S.M, Khamis I.S, Bakar F, Khamis M.A, Person B, Kabole F, Rollinson D. Correction to: Urogenital schistosomiasis elimination in Zanzibar: accuracy of urine filtration and haematuria reagent strips for diagnosing light intensity Schistosoma haematobium infections. Parasit Vectors. 2019;12:149. DOI: 10.1186/s13071-019-3397-8

Knopp S, Ame S.M, Person B, Hattendorf J, Rabone M, Juma S, Muhsin J, Khamis I.S, Hollenberg E, Mohammed K.A, Kabole F, Ali S.M, Rollinson D. A 5-year intervention study on elimination of urogenital schistosomiasis in Zanzibar: parasitological results of annual cross-sectional surveys. PLoS Negl Trop Dis. 2019;13(5):e0007268. DOI: 10.1371/journal.pntd.0007268

Knopp S, Person B, Ame S.M, Ali S.M, Hattendorf J, Juma S, Muhsin J, Khamis I.S, Mohammed K.A, Utzinger J, Hollenberg E, Kabole F, Rollinson D. Evaluation of integrated interventions layered on mass drug administration for urogenital schistosomiasis elimination: a cluster-randomised trial. Lancet Glob Health. 2019;7(8):e1118-e1129. DOI: 10.1016/S2214-109X(19)30189-5

Rostron P, Pennance T, Bakar F, Rollinson D, Knopp S, Allan F, Kabole F, Ali S.M, Ame S.M, Webster B.L. Development of a recombinase polymerase amplification (RPA) fluorescence assay for the detection of Schistosoma haematobium. Parasit Vectors. 2019;12:514. DOI: 10.1186/s13071-019-3755-6

Tian-Bi Y.N.T, Webster B, Konan C.K, Allan F, Diakité N.R, Ouattara M, Salia D, Koné A, Kakou A.K, Rabone M, Coulibaly J.T, Knopp S, Meïte A, Utzinger J, N'Goran E.K, Rollinson D. Molecular characterization and distribution of Schistosoma cercariae collected from naturally infected bulinid snails in northern and central Côte d’Ivoire. Parasit Vectors. 2019;12:117. DOI: 10.1186/s13071-019-3381-3

Gyorkos T.W, Montresor A, Belizario V, Biggs B.A, Bradley M, Brooker S.J, Casapia M, Cooper P, Deb S, Gilbert N.L, Imtiaz R, Khieu V, Knopp S, Lincetto O, Mofid L.S, Mupfasoni D, Vail C, Vercruysse J. The right to deworming: the case for girls and women of reproductive age. PLoS Negl Trop Dis. 2018;12(11):e0006740. DOI: 10.1371/journal.pntd.0006740

Hoekstra P.T, Casacuberta Partal M, Amoah A.S, van Lieshout L, Corstjens Plam, Tsonaka S, Assaré R.K, Silue K.D, Meite A, N'Goran E.K, N'Gbesso Y.K, Roestenberg M, Knopp S, Utzinger J, Coulibaly J.T, van Dam G.J. Repeated doses of Praziquantel in Schistosomiasis Treatment (RePST) - single versus multiple praziquantel treatments in school-aged children in Côte d'Ivoire: a study protocol for an open-label, randomised controlled trial. BMC Infect Dis. 2018;18:662. DOI: 10.1186/s12879-018-3554-2

Knopp S, Ame S.M, Hattendorf J, Ali S.M, Bakar F, Khamis M.A, Person B, Kabole F, Rollinson D. Urogenital schistosomiasis elimination in Zanzibar: accuracy of urine filtration and haematuria reagent strips for diagnosing light intensity Schistosoma haematobium infections. Parasit Vectors. 2018;11:552. DOI: 10.1186/s13071-018-3136-6

Palmeirim M.S, Hürlimann E, Knopp S, Speich B, Belizario V.Jr, Joseph S.A, Vaillant M, Olliaro P, Keiser J. Efficacy and safety of co-administered ivermectin plus albendazole for treating soil-transmitted helminths: a systematic review meta-analysis and individual patient data analysis. PLoS Negl Trop Dis. 2018;12(4):e0006458. DOI: 10.1371/journal.pntd.0006458

Sikalengo G, Hella J, Mhimbira F, Rutaihwa L.K, Bani F, Ndege R, Sasamalo M, Kamwela L, Said K, Mhalu G, Mlacha Y, Hatz C, Knopp S, Gagneux S, Reither K, Utzinger J, Tanner M, Letang E, Weisser M, Fenner L. Distinct clinical characteristics and helminth co-infections in adult tuberculosis patients from urban compared to rural Tanzania. Infect Dis Poverty. 2018;7:24. DOI: 10.1186/s40249-018-0404-9

Tian-Bi N.T, Ouattara M, Knopp S, Coulibaly J.T, Hürlimann E, Webster B, Allan F, Rollinson D, Meïté A, Diakité N.R, Konan C.K, N'Goran E.K, Utzinger J. Interrupting seasonal transmission of Schistosoma haematobium and control of soil-transmitted helminthiasis in northern and central Côte d’Ivoire: a SCORE study protocol. BMC Public Health. 2018;18:186. DOI: 10.1186/s12889-018-5044-2

Amelio P, Portevin D, Reither K, Mhimbira F, Mpina M, Tumbo A, Nickel B, Marti H, Knopp S, Ding S, Penn-Nicholson A, Darboe F, Ohmiti K, Scriba T.J, Pantaleo G, Daubenberger C, Perreau M. Mixed Th1 and Th2 Mycobacterium tuberculosis-specific CD4 T cell responses in patients with active pulmonary tuberculosis from Tanzania. PLoS Negl Trop Dis. 2017;11(7):e0005817. DOI: 10.1371/journal.pntd.0005817

Mhimbira F, Hella J, Said K, Kamwela L, Sasamalo M, Maroa T, Chiryamkubi M, Mhalu G, Schindler C, Reither K, Knopp S, Utzinger J, Gagneux S, Fenner L. Prevalence and clinical relevance of helminth co-infections among tuberculosis patients in urban Tanzania. PLoS Negl Trop Dis. 2017;11(2):e0005342. DOI: 10.1371/journal.pntd.0005342

Said K, Hella J, Knopp S, Nassoro T, Shija N, Aziz F, Mhimbira F, Schindler C, Mwingira U, Mandalakas A.M, Manji K, Tanner M, Utzinger J, Fenner L. Schistosoma, other helminth infections, and associated risk factors in preschool-aged children in urban Tanzania. PLoS Negl Trop Dis. 2017;11(11):e0006017. DOI: 10.1371/journal.pntd.0006017

Assaré R.K, Hürlimann E, Ouattara M, N'Guessan N.A, Tian-Bi Y.T, Yapi A, Yao P.K, Coulibaly J.T, Knopp S, N'Goran E.K, Utzinger J. Sustaining the control of Schistosoma mansoni in western Côte d'Ivoire: baseline findings before the implementation of a randomized trial. Am J Trop Med Hyg. 2016;94(2):352-360. DOI: 10.4269/ajtmh.15-0530

Assaré R.K, Tian-Bi Y.T, Yao P.K, N'Guessan N.A, Ouattara M, Yapi A, Coulibaly J.T, Meite A, Hürlimann E, Knopp S, Utzinger J, N'Goran E.K. Sustaining control of schistosomiasis mansoni in western Côte d'Ivoire: results from a SCORE study, one year after initial praziquantel administration. PLoS Negl Trop Dis. 2016;10(1):e0004329. DOI: 10.1371/journal.pntd.0004329

Becker S.L, Yap P, Horié N.S, Alirol E, Barbé B, Bhatta N.K, Bhattarai N.R, Bottieau E, Chatigre J.K, Coulibaly J.T, Fofana H.K.M, Jacobs J, Karki P, Khanal B, Knopp S, Koirala K, Mahendradhata Y, Mertens P, Meyanti F, Murhandarwati E.H, N'Goran E.K, Peeling R.W, Pradhan B, Ravinetto R, Rijal S, Sacko M, Saye R, Schneeberger P.H.H, Schurmans C, Silué K.D, Steinmann P, van Loen H, Verdonck K, van Lieshout L, von Müller L, Yao J.A, Boelaert M, Chappuis F, Polman K, Utzinger J. Experiences and lessons from a multicountry NIDIAG study on persistent digestive disorders in the tropics. PLoS Negl Trop Dis. 2016;10(11):e0004818. DOI: 10.1371/journal.pntd.0004818

Boelaert M, NIDIAG Consortium. Clinical research on neglected tropical diseases: challenges and solutions. PLoS Negl Trop Dis. 2016;10(11):e0004853. DOI: 10.1371/journal.pntd.0004853

Celone M, Person B, Ali S.M, Lyimo J.H, Mohammed U.A, Khamis A.N, Mohammed Y.S, Mohammed K.A, Rollinson D, Knopp S. Increasing the reach: involving local muslim religious teachers in a behavioral intervention to eliminate urogenital schistosomiasis in Zanzibar. Acta Trop. 2016;163:142-148. DOI: 10.1016/j.actatropica.2016.08.004

Knopp S, Person B, Ame S.M, Ali S.M, Muhsin J, Juma S, Khamis I.S, Rabone M, Blair L, Fenwick A, Mohammed K.A, Rollinson D. Praziquantel coverage in schools and communities targeted for the elimination of urogenital schistosomiasis in Zanzibar: a cross-sectional survey. Parasit Vectors. 2016;9:5. DOI: 10.1186/s13071-015-1244-0

Knopp S. Interview: Dr. Steffi Knopp, NHM & Swiss TPH [Video]. In this interview, Dr. Steffi Knopp (from the Natural History Museum London & Swiss TPH) speaks to ISNTD about recent research at NHM on the impact of WASH & behaviour change programmes on schistosomiasis infection rates in Zanzibar. Dr. Knopp also discusses the positive role of religious community leaders & mosques, some current challenges in behaviour change communication & comic book approaches, and the NHM's important role for science & science communication.. [Date Accessed: 22.08.2017]

Leuenberger A, Nassoro T, Said K, Fenner L, Sikalengo G, Letang E, Montresor A, Zhou X.N, Steinmann P, Marti H, Utzinger J, Knopp S. Assessing stool quantities generated by three specific Kato-Katz thick smear templates employed in different settings. Infect Dis Poverty. 2016;5:58. DOI: 10.1186/s40249-016-0150-9

Pennance T, Person B, Muhsin M.A, Khamis A.N, Muhsin J, Khamis I.S, Mohammed K.A, Kabole F, Rollinson D, Knopp S. Urogenital schistosomiasis transmission on Unguja Island, Zanzibar: characterisation of persistent hot-spots. Parasit Vectors. 2016;9:646. DOI: 10.1186/s13071-016-1847-0

Person B, Ali S.M, A'Kadir F.M, Ali J.N, Mohammed U.A, Mohammed K.A, Rollinson D, Knopp S. Community knowledge, perceptions, and practices associated with urogenital schistosomiasis among school-aged children in Zanzibar, United Republic of Tanzania. PLoS Negl Trop Dis. 2016;10(7):e0004814. DOI: 10.1371/journal.pntd.0004814

Person B, Knopp S, Ali S.M, A'Kadir F M, Khamis A.N, Ali J.N, Lymo J.H, Mohammed K.A, Rollinson D. Community co-designed schistosomiasis control interventions for school-aged children in Zanzibar. J Biosoc Sci. 2016;48(Suppl 1):S56-S73. DOI: 10.1017/S0021932016000067

Assaré R.K, Hürlimann E, Ouattara M, N'Guessan A.N, Tian-Bi T.Y.N, Yapi A, Coulibaly J.T, Knopp S, N'Goran K.E, Utzinger J. Control of Schistosoma mansoni in western Côte d'Ivoire: baseline findings before the implementation of a randomised trial. Trop Med Int Health, 2015;20(Suppl. 1):238. Abstracts of the 9th European Congress on Tropical Medicine and International Health, 6-10 September 2015, Basel, Switzerland

Assaré R.K, Lai Y.S, Yapi A, Tian-Bi Y.N.T, Ouattara M, Yao P.K, Knopp S, Vounatsou P, Utzinger J, N'Goran E.K. The spatial distribution of Schistosoma mansoni infection in four regions of western Côte d'Ivoire. Geospat Health. 2015;10(345):69-79. DOI: 10.4081/gh.2015.345

Bergquist R, Yang G.J, Knopp S, Utzinger J, Tanner M. Surveillance and response: tools and approaches for the elimination stage of neglected tropical diseases. Acta Trop. 2015;141(Pt B):229-234. DOI: 10.1016/j.actatropica.2014.09.017

Knopp S, Corstjens P.L, Koukounari A, Cercamondi C.I, Ame S.M, Ali S.M, de Dood C.J, Mohammed K.A, Utzinger J, Rollinson D, van Dam G.J. Sensitivity and specificity of a urine circulating anodic antigen test for the diagnosis of Schistosoma haematobium in low endemic settings. PLoS Negl Trop Dis. 2015;9(5):e0003752. DOI: 10.1371/journal.pntd.0003752

Knopp S, Person B, Ame S.M, Ali S.M, Mohammed K.A, Rollinson D. Elimination of urogenital schistosomiasis in Zanzibar: challenges for an integrated multidisciplinary research programme. Trop Med Int Health, 2015;20(Suppl. 1):230-231

Mashoud N.S, Knopp S, Lweno O, Abdul U, Mohammed A, Schindler T, Rothen J, Masimba J, Denis K, Mohammed A.S, Althaus F, Abdulla S, Tanner M, Daubenberger C, Genton B. Geohelminth co-infections associated with outcome of benzimidazole treatment for individual species. Trop Med Int Health, 2015;20(Suppl. 1):321-322

Masoud N.S, Lenz N, Schindler T, Knopp S, Lweno O, Abdul U, Mohamed A, Rothen J, Masimba J, Kwaba D, Mohammed A.S, Althaus F, Abdulla S, Tanner M, Daubenberger C, Genton B. The impact of soil transmitted helminth on malaria clinical presentation and treatment outcome: a case control study among children in Bagamoyo district, coastal region of Tanzania. Trop Med Int Health, 2015;20(Suppl. 1):41-42. Abstracts of the 9th European Congress on Tropical Medicine and International Health, 6-10 September 2015, Basel, Switzerland

Olliaro P.L, Vaillant M, Diawara A, Coulibaly J.T, Garba A, Keiser J, King C.H, Knopp S, Landoure A, N'Goran E.K, Raso G, Scherrer A.U, Sousa-Figueiredo J.C, Stete K, Zhou X.N, Utzinger J. Toward measuring Schistosoma response to praziquantel treatment with appropriate descriptors of egg excretion. PLoS Negl Trop Dis. 2015;9(6):e0003821. DOI: 10.1371/journal.pntd.0003821

Olliaro P.L, Vaillant M.T, Diawara A, Coulibaly J.T, Garba A, Keiser J, King C.H, Knopp S, Landoure A, N'Goran E.K, Raso G, Scherrer A.U, Sousa-Figueiredo J.C, Stete K, Zhou X.N, Utzinger J, Speich B, Albonico M, Halpenny C, Kihara J, Prichard R.K. How to measure responses to anthelmintic treatments? Centile distribution of individual versus group mean egg reduction rates. Trop Med Int Health, 2015;20(Suppl. 1):304-305

Salim N, Knopp S, Lweno O, Abdul U, Mohamed A, Schindler T, Rothen J, Masimba J, Kwaba D, Mohammed A.S, Althaus F, Abdulla S, Tanner M, Daubenberger C, Genton B. Distribution and risk factors for Plasmodium and helminth co-infections: a cross-sectional survey among children in Bagamoyo district, coastal region of Tanzania. PLoS Negl Trop Dis. 2015;9(4):e0003660. DOI: 10.1371/journal.pntd.0003660

Utzinger J, Becker S.L, van Lieshout L, van Dam G.J, Knopp S. New diagnostic tools in schistosomiasis. Clin Microbiol Infect. 2015;21(6):529-542. DOI: 10.1016/j.cmi.2015.03.014.

Webster B.L, Rabone M, Pennance T, Emery A.M, Allan F, Gouvras A, Knopp S, Garba A, Hamidou A.A, Mohammed K.A, Ame S.M, Rollinson D, Webster J.P. Erratum to: Development of novel multiplex microsatellite polymerase chain reactions to enable high-throughput population genetic studies of Schistosoma haematobium. Parasit Vectors. 2015;8:519. DOI: 10.1186/s13071-015-1134-5

Webster B.L, Rabone M, Pennance T, Emery A.M, Allan F, Gouvras A, Knopp S, Garba A, Hamidou A.A, Mohammed K.A, Ame S.M, Rollinson D, Webster J.P. Development of novel multiplex microsatellite polymerase chain reactions to enable high-throughput population genetic studies of Schistosoma haematobium. Parasit Vectors. 2015;8:432. DOI: 10.1186/s13071-015-1044-6

Assaré R.K, Knopp S, N'Guessan N.A, Yapi A, Tian-Bi Y.N, Yao P.K, Coulibaly J.T, Ouattara M, Meité A, Fenwick A, N'Goran E.K, Utzinger J. Sustaining control of Schistosomiasis mansoni in moderate endemicity areas in western Côte d'Ivoire: a SCORE study protocol. BMC Public Health. 2014;14:1290. DOI: 10.1186/1471-2458-14-1290

Knopp S, Salim N, Schindler T, Karagiannis-Voules D.A, Rothen J, Lweno O, Mohammed A.S, Singo R, Benninghoff M, Nsojo A.A, Genton B, Daubenberger C. Diagnostic accuracy of Kato-Katz, FLOTAC, Baermann and PCR methods for the detection of light-intensity hookworm and Strongyloides stercoralis infections in Tanzania. Am J Trop Med Hyg. 2014;90(3):535-545. DOI: 10.4269/ajtmh.13-0268

Levecke B, Brooker S.J, Knopp S, Steinmann P, Sousa-Figueiredo J.C, Stothard J.R, Utzinger J, Vercruysse J. Effect of sampling and diagnostic effort on the assessment of schistosomiasis and soil-transmitted helminthiasis and drug efficacy: a meta-analysis of six drug efficacy trials and one epidemiological survey. Parasitology. 2014;141(14):1826-1840. DOI: 10.1017/S0031182013002266

Olliaro P.L, Vaillant M, Diawara A, Coulibaly J.T, Garba A, Keiser J, King C.H, Knopp S, Landouré A, N'Goran E.K, Raso G, Scherrer A.U, Sousa-Figueiredo J.C, Stete K, Zhou X.N, Utzinger J. Comparing methods to assess schistosoma response to praziquantel treatment. Am J Trop Med Hyg, 2014;91(5 Suppl. 1):112

Salim N, Schindler T, Abdul U, Rothen J, Genton B, Lweno O, Mohammed A.S, Masimba J, Kwaba D, Abdulla S, Tanner M, Daubenberger C, Knopp S. Enterobiasis and strongyloidiasis and associated co-infections and morbidity markers in infants, preschool- and school-aged children from rural coastal Tanzania: a cross-sectional study. BMC Infect Dis. 2014;14:644. DOI: 10.1186/s12879-014-0644-7

Tomczyk S, Deribe K, Brooker S.J, Clark H, Rafique K, Knopp S, Utzinger J, Davey G. Association between footwear use and neglected tropical diseases: a systematic review and meta-analysis. PLoS Negl Trop Dis. 2014;8(11):e3285. DOI: 10.1371/journal.pntd.0003285

Becker S.L, Vogt J, Knopp S, Panning M, Warhurst D.C, Polman K, Marti H, von Müller L, Yansouni C.P, Jacobs J, Bottieau E, Sacko M, Rijal S, Meyanti F, Miles M.A, Boelaert M, Lutumba P, van Lieshout L, N'Goran E.K, Chappuis F, Utzinger J. Persistent digestive disorders in the tropics: causative infectious pathogens and reference diagnostic tests. BMC Infect Dis. 2013;13:37. DOI: 10.1186/1471-2334-13-37

Coulibaly J.T, N'gbesso Y.K, Knopp S, N'Guessan N.A, Silue K.D, van Dam G.J, N'Goran E.K, Utzinger J. Accuracy of urine circulating cathodic antigen test for the diagnosis of Schistosoma mansoni in preschool-aged children before and after treatment. PLoS Negl Trop Dis. 2013;7(3):e2109. DOI: 10.1371/journal.pntd.0002109

Knopp S, Becker S.L, Ingram K.J, Keiser J, Utzinger J. Diagnosis and treatment of schistosomiasis in children in the era of intensified control. Expert Rev Anti Infect Ther. 2013;11(11):1237-1258. DOI: 10.1586/14787210.2013.844066

Knopp S, Person B, Ame S.M, Mohammed K.A, Ali S.M, Khamis I.S, Rabone M, Allan F, Gouvras A, Blair L, Fenwick A, Utzinger J, Rollinson D. Elimination of schistosomiasis transmission in Zanzibar: baseline findings before the onset of a randomized intervention trial. PLoS Negl Trop Dis. 2013;7(10):e2474. DOI: 10.1371/journal.pntd.0002474

Knopp S, Stothard J.R, Rollinson D, Mohammed K.A, Khamis I.S, Marti H, Utzinger J. From morbidity control to transmission control: time to change tactics against helminths on Unguja Island, Zanzibar. Acta Trop. 2013;128(2):412-422. DOI: 10.1016/j.actatropica.2011.04.010

Lello J, Knopp S, Mohammed K.A, Khamis I.S, Utzinger J, Viney M.E. The relative contribution of co-infection to focal infection risk in children. Proc Biol Sci. 2013;280(1754):20122813. DOI: 10.1098/rspb.2012.2813

Rollinson D, Knopp S, Levitz S, Stothard J.R, Tschuem Tchuenté L.A, Garba A, Mohammed K.A, Schur N, Person B, Colley D.G, Utzinger J. Time to set the agenda for schistosomiasis elimination. Acta Trop. 2013;128(2):423-440. DOI: 10.1016/j.actatropica.2012.04.013

Coulibaly J.T, Fürst T, Silué K.D, Knopp S, Hauri D, Ouattara M, Utzinger J, N'Goran E.K. Intestinal parasitic infections in schoolchildren in different settings of Côte d'Ivoire: effect of diagnostic approach and implications for control. Parasit Vectors. 2012;5:135. DOI: 10.1186/1756-3305-5-135

Coulibaly J.T, N'Gbesso Y, Knopp S, Keiser J, N'Goran E.K, Utzinger J. Efficacy and safety of praziquantel in preschool-aged children in an area co-endemic for Schistosoma mansoni and S. haematobium. PLoS Negl Trop Dis. 2012;6(12):e1917. DOI: 10.1371/journal.pntd.0001917