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A. Olsen · SciRah

Researcher profile · Semantic Scholar

A. Olsen

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A. Olsen — researcher profile on SciRah

h-index: 37
Works: 106
Citations: 4,341

Most-cited papers

Strongyloidiasis: the most neglected of the neglected tropical diseases?
A. Olsen, L. van Lieshout, H. Marti, Ton Polderman +6 more
2009562 citations Open access
Semantic Scholar
Remote sensing, geographical information system and spatial analysis for schistosomiasis epidemiology and ecology in Africa
C. Simoonga, J. Utzinger, S. Brooker, P. Vounatsou +4 more
2009Parasitology139 citations Open access
Semantic Scholar
Epidemiology of helminth infections and their relationship to clinical malaria in southwest Uganda.
A. Shapiro, E. Tukahebwa, Jennifer Kasten, Siân E. Clarke +5 more
2005Transactions of the Royal Society of Tropical Medicine and Hygiene138 citations
Semantic Scholar
Environmental DNA for improved detection and environmental surveillance of schistosomiasis
M. E. Sengupta, Micaela Hellström, H. Kariuki, A. Olsen +8 more
2019Proceedings of the National Academy of Sciences of the United States of America129 citations Open access
Semantic Scholar
Effects of iron and multimicronutrient supplementation on geophagy: a two-by-two factorial study among Zambian schoolchildren in Lusaka.
M. Nchito, P. Geissler, L. Mubila, H. Friis +1 more
2004Transactions of the Royal Society of Tropical Medicine and Hygiene117 citations
Semantic Scholar
Geophagy and its association with geohelminth infection in rural schoolchildren from northern KwaZulu-Natal, South Africa.
E. Saathoff, A. Olsen, J. Kvalsvig, P. Geissler
2002Transactions of the Royal Society of Tropical Medicine and Hygiene110 citations
Semantic Scholar
A STUDY OF RISK FACTORS FOR INTESTINAL HELMINTH INFECTIONS USING EPIDEMIOLOGICAL AND ANTHROPOLOGICAL APPROACHES
A. Olsen, H. Samuelsen, W. Onyango-Ouma
2001Journal of Biosocial Science101 citations Open access
Semantic Scholar
Efficacy of ivermectin and albendazole alone and in combination for treatment of soil-transmitted helminths in pregnancy and adverse events: a randomized open label controlled intervention trial in Masindi district, western Uganda.
R. Ndyomugyenyi, N. Kabatereine, A. Olsen, P. Magnussen
2008American Journal of Tropical Medicine and Hygiene90 citations
Semantic Scholar
Defining persistent hotspots Areas that fail to decrease meaningfully in prevalence after multiple years of mass drug administration with praziquantel for control of schistosomiasis
Charles H. Kinung'Hi, S. Olsen, A. Magnussen, P. Colley +9 more
201787 citations
Semantic Scholar
Genetic analysis of Trichuris suis and Trichuris trichiura recovered from humans and pigs in a sympatric setting in Uganda.
Sofie Nissen, A. Al-Jubury, Tina V. A. Hansen, A. Olsen +3 more
2012Veterinary parasitology87 citations
Semantic Scholar
Prevalence of fishborne zoonotic parasites in important cultured fish species in the Mekong Delta, Vietnam
Thiện Cử Phạm, A. Dalsgaard, T. N. Bui, A. Olsen +1 more
2007Parasitology Research87 citations
Semantic Scholar
Malaria and hookworm infections in relation to haemoglobin and serum ferritin levels in pregnancy in Masindi district, western Uganda.
R. Ndyomugyenyi, N. Kabatereine, A. Olsen, P. Magnussen
2008Transactions of the Royal Society of Tropical Medicine and Hygiene86 citations
Semantic Scholar
Sedimentation of helminth eggs in water.
M. E. Sengupta, S. Thamsborg, T. J. Andersen, A. Olsen +1 more
2011Water Research85 citations
Semantic Scholar
Patterns of Schistosoma haematobium infection, impact of praziquantel treatment and re-infection after treatment in a cohort of schoolchildren from rural KwaZulu-Natal/South Africa
E. Saathoff, A. Olsen, Pascal Magnussen, J. Kvalsvig +2 more
2004BMC Infectious Diseases79 citations Open access
Semantic Scholar
Patterns of geohelminth infection, impact of albendazole treatment and re-infection after treatment in schoolchildren from rural KwaZulu-Natal/South-Africa
E. Saathoff, A. Olsen, J. Kvalsvig, C. Appleton
2004BMC Infectious Diseases79 citations Open access
Semantic Scholar
Use of Moringa oleifera seed extracts to reduce helminth egg numbers and turbidity in irrigation water.
M. E. Sengupta, B. Keraita, A. Olsen, O. Boateng +3 more
2012Water Research78 citations
Semantic Scholar
Prevalence of gastrointestinal nematodes in growing pigs in Kabale District in Uganda
Sofie Nissen, Idahella H. Poulsen, P. Nejsum, A. Olsen +3 more
2011Tropical Animal Health and Production78 citations
Semantic Scholar
Efficacy and safety of drug combinations in the treatment of schistosomiasis, soil-transmitted helminthiasis, lymphatic filariasis and onchocerciasis.
A. Olsen
2007Transactions of the Royal Society of Tropical Medicine and Hygiene73 citations
Semantic Scholar
Persistent Hotspots in Schistosomiasis Consortium for Operational Research and Evaluation Studies for Gaining and Sustaining Control of Schistosomiasis after Four Years of Mass Drug Administration of Praziquantel
N. Kittur, C. King, C. Campbell, S. Kinung'hi +13 more
2019American Journal of Tropical Medicine and Hygiene65 citations Open access
Semantic Scholar
Uptake of Preventive Treatment for Intestinal Schistosomiasis among School Children in Jinja District, Uganda: A Cross Sectional Study
Simon Muhumuza, A. Olsen, Anne Ruhweza Katahoire, F. Nuwaha
2013PLoS ONE62 citations Open access
Semantic Scholar
Seasonal prevalence and incidence of Cryptosporidium spp. and Giardia duodenalis and associated diarrhoea in children attending pre-school in Kafue, Zambia.
J. Siwila, I. Phiri, H. Enemark, M. Nchito +1 more
2011Transactions of the Royal Society of Tropical Medicine and Hygiene61 citations
Semantic Scholar
Intestinal helminths and protozoa in children in pre-schools in Kafue district, Zambia.
J. Siwila, I. Phiri, H. Enemark, M. Nchito +1 more
2010Transactions of the Royal Society of Tropical Medicine and Hygiene61 citations
Semantic Scholar
Gaining and sustaining schistosomiasis control: study protocol and baseline data prior to different treatment strategies in five African countries
A. Ezeamama, C. He, Ye Shen, Xiao-Ping Yin +20 more
2016BMC Infectious Diseases60 citations Open access
Semantic Scholar
Ecologic covariates of hookworm infection and reinfection in rural Kwazulu-natal/south Africa: a geographic information system-based study.
E. Saathoff, A. Olsen, B. Sharp, J. Kvalsvig +2 more
2005American Journal of Tropical Medicine and Hygiene60 citations Open access
Semantic Scholar
The impact of iron supplementation on reinfection with intestinal helminths and Schistosoma mansoni in western Kenya.
A. Olsen, J. Nawiri, H. Friis
2000Transactions of the Royal Society of Tropical Medicine and Hygiene54 citations
Semantic Scholar
Cryptosporidium and Giardia in Danish organic pig farms: Seasonal and age-related variation in prevalence, infection intensity and species/genotypes.
H. H. Petersen, Jian-Min Wang, K. Katakam, H. Mejer +4 more
2015Veterinary parasitology52 citations Open access
Semantic Scholar
Low-dose iron supplementation does not increase HIV-1 load.
A. Olsen, D. Mwaniki, H. Krarup, H. Friis
2004Journal of Acquired Immune Deficiency Syndromes52 citations Open access
Semantic Scholar
Albendazole and mebendazole have low efficacy against Trichuristrichiura in school-age children in Kabale District, Uganda.
A. Olsen, Harriet Namwanje, P. Nejsum, A. Roepstorff +1 more
2009Transactions of the Royal Society of Tropical Medicine and Hygiene51 citations Open access
Semantic Scholar
Prevalence of zoonotic trematode parasites in fish fry and juveniles in fish farms of the Mekong Delta, Vietnam
Cu Pham Thien, A. Dalsgaard, N. Nguyễn, A. Olsen +1 more
200948 citations
Semantic Scholar
Effects of multimicronutrient supplementation on helminth reinfection: a randomized, controlled trial in Kenyan schoolchildren.
A. Olsen, F. Thiong'o, J. Ouma, D. Mwaniki +4 more
2003Transactions of the Royal Society of Tropical Medicine and Hygiene46 citations
Semantic Scholar
Efficacy of single and double doses of albendazole and mebendazole alone and in combination in the treatment of Trichuris trichiura in school-age children in Uganda.
Harriet Namwanje, N. Kabatereine, A. Olsen
2011Transactions of the Royal Society of Tropical Medicine and Hygiene45 citations Open access
Semantic Scholar
Intestinal schistosomiasis among preschool children along the shores of Lake Victoria in Uganda.
A. Nalugwa, A. Olsen, M. E. Tukahebwa, F. Nuwaha
2015Acta Tropica43 citations
Semantic Scholar
Evaluation and optimization of the Circulating Cathodic Antigen (POC-CCA) cassette test for detecting Schistosoma mansoni infection by using image analysis in school children in Mwanza Region, Tanzania
Miriam Casacuberta, Safari Kinunghi, B. Vennervald, A. Olsen
2016Parasite Epidemiology and Control41 citations Open access
Semantic Scholar
The epidemiology and small-scale spatial heterogeneity of urinary schistosomiasis in Lusaka province, Zambia.
C. Simoonga, L. Kazembe, T. Kristensen, A. Olsen +3 more
2008Geospatial Health41 citations Open access
Semantic Scholar
Ecological covariates of Ascaris lumbricoides infection in schoolchildren from rural KwaZulu‐Natal, South Africa
E. Saathoff, A. Olsen, Jane D. Kvalsvig, C. Appleton +2 more
2005Tropical medicine & international health39 citations
Semantic Scholar
The proportion of helminth infections in a community in western Kenya which would be treated by mass chemotherapy of schoolchildren.
A. Olsen
1998Transactions of the Royal Society of Tropical Medicine and Hygiene38 citations
Semantic Scholar
Lessons Learned in Conducting Mass Drug Administration for Schistosomiasis Control and Measuring Coverage in an Operational Research Setting
S. Binder, C. Campbell, J. Castleman, N. Kittur +20 more
2020American Journal of Tropical Medicine and Hygiene36 citations Open access
Semantic Scholar
Single Versus Double Dose Praziquantel Comparison on Efficacy and Schistosoma mansoni Re-Infection in Preschool-Age Children in Uganda: A Randomized Controlled Trial
A. Nalugwa, F. Nuwaha, E. Tukahebwa, A. Olsen
2015PLoS Neglected Tropical Diseases34 citations Open access
Semantic Scholar
Genetic variations in the beta-tubulin gene and the internal transcribed spacer 2 region of Trichuris species from man and baboons
Tina V. A. Hansen, S. Thamsborg, A. Olsen, R. Prichard +1 more
2013Parasites & Vectors33 citations Open access
Semantic Scholar
The effect of the community-directed treatment approach versus the school-based treatment approach on the prevalence and intensity of schistosomiasis and soil-transmitted helminthiasis among schoolchildren in Tanzania.
K. Massa, P. Magnussen, A. Sheshe, R. Ntakamulenga +2 more
2009Transactions of the Royal Society of Tropical Medicine and Hygiene32 citations
Semantic Scholar
Schistosoma mansoni infection along the coast of Lake Victoria in Mwanza region, Tanzania.
A. Olsen, S. Kinung'hi, P. Magnussen
2015American Journal of Tropical Medicine and Hygiene31 citations Open access
Semantic Scholar
Iron supplementation increases small intestine permeability in primary schoolchildren in Lusaka, Zambia.
M. Nchito, H. Friis, K. Michaelsen, L. Mubila +1 more
2006Transactions of the Royal Society of Tropical Medicine and Hygiene31 citations
Semantic Scholar
Molecular diversity of avian schistosomes in Danish freshwater snails
A. Ø. Christiansen, A. Olsen, K. Buchmann, P. Kania +2 more
2015Parasitology Research30 citations
Semantic Scholar
UNDERSTANDING LOW UPTAKE OF MASS TREATMENT FOR INTESTINAL SCHISTOSOMIASIS AMONG SCHOOL CHILDREN: A QUALITATIVE STUDY IN JINJA DISTRICT, UGANDA
Simon Muhumuza, A. Olsen, F. Nuwaha, Anne Ruhweza Katahoire
2014Journal of Biosocial Science29 citations Open access
Semantic Scholar
Cross-sectional parasitological survey for helminth infections among fish farmers in Nghe An province, Vietnam.
A. Olsen, L. K. Thuan, K. Murrell, A. Dalsgaard +2 more
2006Acta Tropica29 citations
Semantic Scholar
Experience with school-based interventions against soil-transmitted helminths and extension of coverage to non-enrolled children.
A. Olsen
2003Acta Tropica29 citations
Semantic Scholar
Effectiveness of a Pre-treatment Snack on the Uptake of Mass Treatment for Schistosomiasis in Uganda: A Cluster Randomized Trial
Simon Muhumuza, A. Olsen, Anne Ruhweza Katahoire, A. Kiragga +1 more
2014PLoS Medicine27 citations Open access
Semantic Scholar
Transport of Cryptosporidium parvum Oocysts in Soil Columns following Applications of Raw and Separated Liquid Slurries
H. H. Petersen, H. Enemark, A. Olsen, M. G. Mostofa Amin +1 more
2012Applied and Environmental Microbiology26 citations Open access
Semantic Scholar
Impact of repeated mass treatment on human Oesophagostomum and hookworm infections in northern Ghana
J. Ziem, P. Magnussen, A. Olsen, J. Horton +2 more
2006Tropical medicine & international health25 citations
Semantic Scholar
Oesophagostomum bifurcum-induced nodular pathology in a highly endemic area of Northern Ghana.
J. Ziem, N. Spannbrucker, P. Magnussen, A. Olsen +5 more
2005Transactions of the Royal Society of Tropical Medicine and Hygiene24 citations
Semantic Scholar

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P. Magnussen×12
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P. Magnussen — researcher profile on SciRah
S. Thamsborg×7
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S. Thamsborg — researcher profile on SciRah
A. Dalsgaard×7
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A. Dalsgaard — researcher profile on SciRah
C. Appleton×6
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E. Saathoff — researcher profile on SciRah

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P. Nejsum — researcher profile on SciRah

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F. Nuwaha — researcher profile on SciRah

N. Kabatereine×4

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N. Kabatereine — researcher profile on SciRah

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M. Nchito — researcher profile on SciRah

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J. Kvalsvig — researcher profile on SciRah

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S. Binder — researcher profile on SciRah

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C. Campbell — researcher profile on SciRah