International reviewed publications (69) and book chapters (3)

Nejsum, P., Hawash, M., Betson, M., Stothard, R., Gasser, R.B., Andersen, L. (2017). Ascaris phylogeny based on multiple whole mtDNA genomes, Journal of Molecular Epidemiology and Evolutionary Genetics of Infectious Diseases, accepted
Skallerup, P., Nejsum, P., Cirera, S., Skovgaard, K., Pipper, C.B., Fredholm, M., Jørgensen, C.B., Thamsborg, S.M. Profiling gene expression in mesenteric lymph nodes in pigs with different levels of resistance to Ascaris suum. Acta Parasitologica, accepted
Vlaminck, J., Masure, D., Wang, T., Nejsum, P., Hokke, C.H., Geldhof, P. (2016). A phosphorylcholine-containing glycolipid-like antigen present on the surface of infective stage larvae of Ascaris spp. is a major antibody target in infected pigs and humans. PLoS Neglected Tropical Diseases, accepted
Dige, A., Rasmussen, T.K., Nejsum, P., Hagemann-Madsen, R., Agnholt, J., Dahlerup, J.F. Hvas, C.L. Mucosal and systemic immune modulation from Trichuris trichiura in a self-infected individual. Parasite Immunology, accepted
Laan, L.C., Williams, A.R., Stavenhagen, K., Giera, M., Kooij, G., Vlasakov, I., Kalay, H., Kringel, H., Nejsum, P., Thamsborg S.M., Wuhrer, M., Dijkstra, C.D., Cummings,. RD., van Die, I. (2016). The whipworm (Trichuris suis) secretes prostaglandin E2 to suppress proinflammatory properties in human dendritic cells. FASEB J, accepted.
Hansen, T.V.A., Hansen, M., Nejsum, P., Mejer, H., Denwood, M., Thamsborg, S.M.T. (2016). Glucose absorption by the bacillary band of Trichuris muris. PLoS Neglected Tropical Diseases, 10:e0004971.
Søe, M.J., Kapel, C.M.O., Nejsum, P. (2016). Ascaris from humans and pigs appear to be reproductively isolated species. PLoS Neglected Tropical Diseases, 10:e0004855
Curis hertil
Drag, M., Höglund, J., Nejsum, P., Thamsborg, S.M., Enemark, H.L. (2016). The level of embryonation influences detection of Ostertagia ostertagi eggs by semi-quantitative PCR. Parasites and Vectors, 9:368
Hansen, E.P., Kringel, H., Thamsborg, S.M., Jex, A., Nejsum, P. (2016). Profiling circulating miRNAs in serum from pigs infected with the porcine whipworm, Trichuris suis. Veterinary Parasitology, 223: 3033
Hansen, E.P., Tejedor, A.M., Thamsborg, S.M., Hansen, T.V.A., Dahlerup, J.F., Nejsum, P. (2016). Faecal egg counts and expulsion dynamics of the whipworm, Trichuris trichiura following self-infection. Journal of Helminthology, 90: 298-302
Christiansen, A.Ø., Olsen, A., Buchmann, K., Kania, P.W., Nejsum, P., Vennervald, B.J. (2016). Molecular diversity of avian schistosomes in Danish freshwater snails. Parasitology Research, 115: 1027-1037
Hawash, M.B.F., Betson, M., Al-Gabury, A., Ketzis, J., Willingham, A.L., Bertelsen, M.F., Cooper, P.J., Littlewood, D.T.J., Zhu, X.Q., Nejsum, P. (2016). Whipworms in humans and pigs: Origins and demography. Parasites and Vectors, 9:37
Betson, M., Søe, M.J., Nejsum, P. (2015). Human trichuriasis: whipworm genetics, phylogeny, transmission and future research directions. Current Tropical Medicine Reports, 2: 209-2017
Williams, A.R., Ramsay, A., Hansen, T.V.A., Ropiak, H.M., Mejer, H., Nejsum, P., Mueller-Harvey, I., Thamsborg, S.M. Anthelmintic activity of trans-cinnamaldehyde and A- and B-type proanthocyanidins derived from cinnamon (Cinnamomum verum). Scientific Reports, 5: 14791
Braae, U.C., Kabululu, M., Nørmark, M.E., Nejsum, P., Ngowi, H.A., Johansen, M.V. (2015). Taenia hydatigena cysticercosis in slaughtered pigs, goats, and sheep from Mbeya, Tanzania. Tropical Animal Health and Production, 47:1523–1530
Luna-Olivares, L., Ferdushy, T., Kyvsgaard, N.C., Nejsum, P., Thamsborg, S.M., Iburg, T.M. (2015). The jejunal cellular responses in chickens infected with a single dose of Ascaridia galli eggs. Parasitology Research, 114: 2507-2515
Hawash, M.B.F., Andersen, L.O., Gasser R.B., Stensvold, C.R., Nejsum, P. (2015). Mitochondrial genome analyses suggest multiple Trichuris species in humans, baboons, and pigs from different geographical regions. PLOS Neglected Tropical Diseases, e0004059
Kringel, H., Thamsborg, S.M., Petersen, H.H., Göring, H.H.H., Skallerup, P., Nejsum, P. (2015). Serum antibody responses in pigs trickle-infected with Ascaris and Trichuris: Heritabilities and associations with parasitological findings. Veterinary Parasitology, 211: 306-311
Siwilaa, J., Mwaseb, E.T., Nejsum, P., Simonsen, P.E. (2015). Filarial infections in domestic dogs in Lusaka, Zambia. Veterinary Parasitology, 210: 250-254
Hansen E.P., Kringel H., Williams A.R., Nejsum, P. (2015). Secretion of RNA-containing extracellular vesicles by the porcine whipworm, Trichuris suis. Journal of Parasitology, accepted
Hansen, E.P., Tejedor, A.M., Thamsborg, S.M., Hansen, T.V.A., Dahlerup, J.F., Nejsum, P. (2015). Faecal egg counts and expulsion dynamics of the whipworm, Trichuris trichiura following self-infection. Journal of Helminthology, accepted
Luna-Olivares, L., Ferdushy, T., Kyvsgaard, N.C., Nejsum, P., Thamsborg, S.M., Iburg, T.M. (2015). The jejunal cellular responses in chickens infected with a single dose of Ascaridia galli eggs. Parasitology Research, accepted
Meekums, H., Hawash, M.B.F., Sparks, A.M., Oviedo, Y., Sandoval, C., Chiro, M.E., Stothard, J.R., Cooper, P.J., Nejsum, P., Betson, M. (2015).  A genetic analysis of Trichuris trichiura and Trichuris suis from Ecuador. Parasites and Vectors, 8:168
Ferdushy, T., Luna-Olivares, L.A., Nejsum, P., Thamsborg, S.M., Kyvsgaard, N.C. (2015). The use of genetically marked infection cohorts to study changes in establishment rates during the time course of a repeated Ascaridia galli infection in chickens. International Journal of Parasitology, 45: 393-398
Poulsen C.S, Skov S., Yoshida A., Skallerup P., Maruyama H., Thamsborg S.M., Nejsum P. (2015). Differential serodiagnostics of Toxocara canis and Toxocara cati - is it possible? Parasite Immunology, 37:204-207
Skallerup P., Thamsborg S.M., Jørgensen C.B., Mejer H., Göring H.H., Archibald A.L., Fredholm M., Nejsum, P. (2015). Detection of a quantitative trait locus associated with resistance to infection with Trichuris suis in pigs. Veterinary Parasitology, 210: 264-269
Zhu, X., Korhonen, P.K., Young, N.D., Cai, H., Nejsum, P., von Samson-Himmelstjerna, G., Boag, P.R., Tan, P., Fang, W., Hall, R.S., Hofmann, A., Sternberg, P.W., Jex, A.R., Gasser, R.B. (2015). Genetic blueprint of the zoonotic pathogen Toxocara canis. Nature Communications, 6:6145
Søe M.J., Nejsum P., Fredensborg B.L., Kapel C.M.O. (2015). DNA typing of ancient parasite eggs from environmental samples identifies human and animal infections in Viking-age settlements. Journal of Parasitology, 10: 57-63.
Jex A.R., Nejsum, P., Schwarz, E.M., Hu, L., Young N.D., Hall, R.S., Korhonen, P.K., Liao, S., Thamsborg, S.M., Xia, J., Xu, P., Wang, S., Harris, T.W., Scheerlinck, J.Y., Hofmann, A., Sternberg, P.W., Wang, J., Gasser, R.B. (2014). Genome and transcriptome of the porcine whipworm Trichuris suis. Nature Genetics, 46: 701-706
Ferdushy, T., Schou, T.W., Norup, L.R., Dalgaard, T.S., Thamsborg, S.M. Nejsum, P., Permin, A., Juul-Madsen, H.R., Kyvsgaard, N.C. (2014). Acquisition of resistance after continuous infection with Ascaridia galli in chickens. Parasitology, 141: 1603-1610.
Betson, M., Nejsum, P., Bendall R.P., Deb R.M., Stothard, J.R. (2014). Molecular epidemiology of ascariasis: A global perspective on the transmission dynamics of Ascaris in people and pigs. Journal of Infectious Diseases, 210: 932-941.


Hansen, T.V.A., Friis, C., Nejsum, P., Olsen, A., Thamsborg, S.M. (2014). Uptake of benzimidazoles by Trichuris suis in vivo in pigs. International Journal for Parasitology: Drugs and Drug Resistance, 4: 112-117.

Hansen, T.V.A., Nejsum, P., Friis, C., Olsen, A., Thamsborg, S.M. (2014). Trichuris suis and Oesophagostomum dentatum show different sensitivity and accumulation of fenbendazole, albendazole and levamisole in vitro. PLOS Neglected Tropical Diseases, 8: e2752

Skallerup, P., Thamsborg, S.M., Jørgensen, C.B., Enemark, H., Yoshida, A., Göring, H.H.H., Fredholm, M., Nejsum, P.  (2014). Functional study of a genetic marker allele associated with resistance to Ascaris suum in pigs. Parasitology 141:777-787.

Samuelsson, F., Nejsum, P., Raundrup, K., Hansen, T.V.A, Kapel, C.M.O (2013).Warble infestations from Hypoderma tarandi (diptera; Oestridae) recorded for the first time in West Greenland muskoxen. International Journal for Parasitology: Parasites and Wildlife, 2: 214-216.

Liu, G.H., Gasser, R.B., Nejsum, P., Wang, Y., Chen, Q., Song, H.Q., Zhu, X.Q. (2013). Mitochondrial and nuclear ribosomal DNA evidence support the existence of a new Trichuris species in the endangered François’ Leaf-Monkey. PlosOne, 8:e66249.
Ferdushy, T., Luna-Olivares, L., Nejsum, P., Roepstorff, A, Thamsborg,  S.M., Kyvsgaard, N.C. (2013). Population dynamics of Ascaridia galli following single infection in young chickens. Parasitology, 140:1078-1084.
Andersen, U.V., Howe, D.K., Lyons, E.T., Olsen, S.N., Monrad, J., Nejsum, P., Nielsen, M.K. (2013). SvSXP: A Strongylus vulgaris antigen for prepatent diagnosis of infection. Parasites and Vectors, 6:84. 
Andersen, L., Röser D., Nejsum, P., Nielsen, H.V., Stensvold, C.R. (2013). Is supplementary bead beating for DNA extraction from nematode eggs using the NucliSENS® easyMag® protocol necessary? Journal of Clinical Microbiology, 51:1345-1347.
Hansen T.V.A, Nejsum, P., Olsen, A., Thamsborg, S.M. (2013). Whipworm (Trichuris spp.) infections in animals: Genetics of β-tubulin and susceptibility to benzimidazoles. Veterinary Parasitology, 193:141-149.
Ferrero, M.R.,  Röser, D., Nielsen, H.V. Olsen, A., Nejsum, P. (2013).Genetic variation in mitochondrial DNA among Enterobius vermicularis in Denmark. Parasitology, 140:109-114. 
Röser D., Nejsum, P., Carlsgart, A.J., Nielsen, H.V., Stensvold, C.R. (2013). DNA of Dientamoeba fragilis detected in eggs of Enterobius vermicularis. Experimental Parasitology 133: 57-61.
Betson, M.,  Nejsum, P., Stothard, J.R. (2013). New insights into evolutionary-history and phylogeography of Ascaris. In: C. Holland editor. Ascaris and ascariasis. Elsevier, London, UK, pp.  265-285.
Thamsborg S.M., Nejsum, P., Mejer, H. Impact of Ascaris suum in livestock. (2013). In: C. Holland editor. Ascaris and ascariasis. Elsevier, London, UK, pp. 363-381
Jex A.R., Shiping L., Li, B., Young N.D., Hall, R.S., Li, Y., Geldhof, P., Nejsum, P., Sternberg, P.W., Wang, J., Yang, H., Gasser, R.B. (2013). Decoding the Ascaris suum genome using massively parallel sequencing and advanced bioinformatic methods – unprecedented prospects for fundamental and applied research. In: C. Holland editor. Ascaris and ascariasis. Elsevier, London, UK, pp. 287-314
Ferdushy, T., Nejsum, P., Roepstorff, A, Thamsborg,  S.M., Kyvsgaard, N.C. (2012). Ascaridia galli in chickens: Intestinal localization and comparison of 3 methods to isolate the larvae within the first week of infection. Parasitology Research 111:2273-2279.

Vlamincka, J., Nejsum, P., Vangroenweghe, F., Thamsborg, S.M., Vercruysse, J., Geldhof, P. (2012). Evaluation of a serodiagnostic test using Ascaris suum haemoglobin for the detection of roundworm infestation on conventional pig farms. Veterinary Parasitology, 189:267-273.

Höglund, J., Morrison, D. A., Engström, A, Nejsum, P., Jansson, D. S. (2012). Population genetic structure of Ascaridia galli re-emerging in non-caged laying hens, Parasites and Vectors, 5:97.

Nissen, S., Al-Jubury, A., Hansen, T.V.A., Olsen, A., Christensen, H.,  Thamsborg, S. M., Nejsum, P., (2012). Genetic analysis of Trichuris recovered from human and pigs in a sympatric setting in Uganda. Veterinary Parasitology, 88:68-77.

Nejsum, P., Betson, M., Bendall R.P., Thamsborg, S.M., Stothard, J.R. (2012). Assessing the zoonotic potential of Ascaris suum and Trichuris suis: looking to the future from an analysis of the past, Journal of Helminthology, 86: 148-155.

Skallerup, P., Nejsum, P., Jørgensen, C.B.,  Fredholm, M, Göring, H.H.H., Karlskov-Mortensen, P., Archibald, A., & Thamsborg, S. M., (2012). Detection of a Quantitative Trait Locus associated with resistance to Ascaris suum infection in pigs. International Journal for Parasitology: 42: 383-391.

Luna-Olivares, L., Ferdushy, T., Kyvsgaard, N.C., Nejsum, P., Thamsborg, S.M., Roepstorff, A., Iburg, T.M. (2012). Localization of Ascaridia galli larvae in the jejunum of chickens 3 days post infection, 185: 186-193.

Liu, G.H., Gasser, R.B., Su, A., Nejsum, P., Wei, S.J., Peng, L., Lin, R.Q., Li, M.W., Zhu, X.Q. (2012) Clear genetic distinctiveness of Trichuris trichiura from Trichuris suis based on analyses of mitochondrial datasets, PloS Neglected Tropical Diseases, 6: e1539.

Betson, M., Nejsum, P., Llewellyn-Hughes, J., Griffin, C., Atuhaire, A., Arinaitwe, M., Adriko, M., Ruggiana, A., Turyakira, G.. Kabatereine, N.B., Stothard, J.R. (2012). Genetic diversity within Ascaris in mothers and children in south-western Uganda, Transactions of the Royal Society of Tropical Medicine and Hygiene 106: 75-83.

Jex A.R., Shiping L., Li, B., Young N.D., Hall, R.S., Li, Y., Yang, L., Zeng, N., Xu, X., Xiong, X., Chen, F., Wu X., Zhang, G., Fang, X., Kang, Y., Anderson, G.A., Campbell B.E., Vlaminck, J., Wang, T., Cantacessi C., Schwarz, E.M., Ranganathan, S., Geldhof, P., Nejsum, P., Sternberg, P.W., Yang, H., Wang, J., Wang, J., Gasser, R.B. (2011). Ascaris suum draft genome, Nature, 479: 529-533

Bendall R.P., Barlow, M., Betson, M., Stothard, J.R. Nejsum, P. (2011). Zoonotic Ascariasis, United Kingdom. Emerging Infectious Diseases, 17:1964-1966.

Cantacessi C., Young N.D., Nejsum, P., Jex A.R., Campbell B.E.Thamsborg, S.M.,  Hall R.S., Scheerlinck, J.,  Gasser RB. The transcriptome of Trichuris suis – first molecular insights into a parasite with curative properties for key immune diseases of humans, PlosOne 6:e23590.

Roepstorff, A., Mejer, H., Nejsum, P., Thamsborg, S.M. (2011). Helminth parasites in pigs: new challenges in pig production and current research highlights. Veterinary Parasitology, 180:72-81

Betson, M., Halstead, F.D., Nejsum, P., Imison, E., Khamis, I., Sousa-Figueiredo, J.C., Rollinson, D. & Stothard, J.R. (2011). A molecular epidemiological investigation of Ascaris on Unguja, Zanzibar using isoenyzme analysis, DNA barcoding and microsatellite DNA profiling. Transactions of the Royal Society of Tropical Medicine and Hygiene 105: 370-379.

Nissen, S., Poulsen, I. H., Nejsum, P., Olsen, A., Roepstorff, A., Rubaire-Akiiki, C. & Thamsborg, S. M. (2011). Prevalence of gastrointestinal nematodes in growing pigs in Kabale District in Uganda. Tropical and Animal Health Production 43:567-572.

Thamsborg, S. M., Roepstorff, A., Nejsum, P. & Mejer H. (2010). Alternative approaches to control of parasites in livestock: Nordic and Baltic perspectives. Acta Veterinaria Scandinavica 52:S27.

Nejsum, P., Bertelsen, M. F., Betson, M., Stothard, J. R. & Murrell, K. D. (2010). Molecular evidence for sustained transmission of zoonotic Ascaris suum among zoo chimpanzees (Pan troglodytes), Veterinary Parasitology 171:273-276.

Katakam, K. K., Nejsum, P., Kyvsgaard, N., Jørgensen, C. & Thamsborg S. M. (2010). Molecular and parasitological tools for the study of Ascaridia galli population dynamics in chickens. Avian Pathology 39:81-85.

Nejsum, P., Thamsborg, S. M., Petersen H.H., Kringel, H., Fredholm, M. & Roepstorff, A. (2009). Population dynamics of Trichuris suis in trickle infected pigs. Parasitology 136: 691-697.

Nejsum, P., Thamsborg, S. M., Petersen H.H., Kringel, H., Fredholm, M. & Roepstorff, A. (2009). Population dynamics of Ascaris suum in trickle infected pigs. Journal of Parasitology 95: 1048-1053.

Olsen, A. Namwanje, H. Nejsum, P. Roepstorff, A. & Thamsborg S.M. (2009). Albendazole and mebendazole have low efficacy against Trichuris trichiura in school age children in Kabale District. Transactions of the Royal Society of Tropical Medicine and Hygiene 103: 443-446.

Nejsum, P., Roepstorff, A., Jørgensen, C., Fredholm, M., Göring, H.H., Anderson, T.J.C & Thamsborg, S. M. (2009). High heritability for Ascaris and Trichuris infection levels in pigs. Heredity 102: 357-364.

Carlsgart, J., Roepstorff, A & Nejsum, P.  (2009). Multiplex PCR on single unembryonated Ascaris (roundworm) eggs. Parasitology Research 104: 939-943.

Nejsum, P., Roepstorff, A., Jørgensen, C., Fredholm, M., Anderson T.J.C., & Thamsborg S.M. (2009). The dynamics of genetically marked roundworm infections in pigs. Parasitology 136:193-201.

Nejsum, P., Thamsborg, S. M., Jørgensen, C., Fredholm, M., & Roepstorff, A.(2008). A novel technique for identification of Ascaris suum cohorts in pigs. Veterinary Parasitology 154:171-174.

Nejsum, P., Grøndahl, C. & Murrell, K.D. (2006). Molecular evidence for the infection of Zoo chimpanzees by pig Ascaris. Veterinary Parasitology 139:203-210.

Nejsum, P., Jørgensen, C. B., Fredholm, M., Roepstorff, A. and Thamsborg, S. M. (2005). Host and parasite genetics in pig helminth infections. Proceedings of the Abildgaard Symposium ‘Helminth infections in animals and man: Population dynamics, host susceptibility and immunomodulatory effects’. Webster, P., Thamsborg, S. M. (eds.), Copenhagen, Denmark, 26 August 2005, 25-32.

Nejsum, P., Frydenberg, J., Roepstorff, A. & Parker, E.D. (2005). Population structure in Ascaris suum (Nematoda) among domestic swine in Denmark as measured by whole genome DNA fingerprinting. Hereditas 142:7-14.

Nejsum, P., Parker, E.D., Frydenberg, J., Roepstorff, A., Boes, J., Haque. R., Astrup, I., Prag, J., & Sørensen, U.S. (2005) Human Ascariasis is a Zoonosis in Denmark. Journal of Clinical Microbiology 43:1142-1148.