Dr Karl has a M. Sc. in Biological Process Engineering (2007) and a PhD in biophysics (University of Western Australia, 2012). He has done postdocs in vector-borne diseases epidemiology and entomology at Walter and Eliza Hall Institute , James Cook University and PNG Institute of Medical Research. He is currently a Senior Research Officer in the Australian Institute of Tropical Health and Medicine at JCU and laboratory head of the entomology section at the PNG Institute of Medical Research. He has 65 research papers mainly in the field of vector-borne tropical diseases, a 14 year collaborative history with the PNG Institute of Medical Research and more than 5 years of full-time in-country research experience in PNG.

Dr Karl is currently a project leader in the NIH-funded Asia-Pacific Centre of Excellence in Malaria Research in PNG (2017-2023) and a program director in an Australian Department of Foreign Affairs and Trade-funded program to strengthen surveillance and control of malaria and arboviruses in PNG (Strive PNG, 2018-2020). Dr Karl is also leading the Global Fund to Fight Aids, Malaria and Tuberculosis-funded mosquito monitoring activities in PNG (since 2017) as well as various studies funded by the Bill and Melinda Gates Foundation, Australian National Health and Medical Research Council and the Commonwealth Scientific and Industrial Research Organisation.

Research Disciplines

• Public Health and Health Services (1117)
• Clinical Sciences (1103)
• Medical Microbiology (1108)

Socio-Economic Objectives

• Clinical Health (9201)
• Public Health (9204)
• Indigenous Health (9203)

These are the most recent publications associated with this author. To see a detailed profile of all publications stored at JCU, visit ResearchOnline@JCU. Hover over Altmetrics badges to see social impact.

Journal Articles

• Gruenberg M, Hofmann N, Nate E, Karl S, Robinson L, Lanke K, Smith T, Bousema T and Felger I (2020) qRT-PCR versus IFA-based quantification of male and female gametocytes in low-density Plasmodium falciparum infections and their relevance for transmission. Journal of Infectious Diseases, 221 (4), pp. 598-607, DOI:10.1093/infdis/jiz420.
• Demok S, Endersby-Harshman N, Vinit R, Timinao L, Robinson L, Susapu M, Makita L, Laman M, Hoffmann A and Karl S (2019) Insecticide resistance status of Aedes aegypti and Aedes albopictus mosquitoes in Papua New Guinea. Parasites & Vectors, 12, Article: 333, DOI:10.1186/s13071-019-3585-6.
• Keven J, Katusele M, Vinit R, Koimbu G, Vincent N, Thomsen E, Karl S, Reimer L and Walker E (2019) Species abundance, composition, and nocturnal activity of female Anopheles (Diptera: Culicidae) in malaria-endemic villages of Papua New Guinea: assessment with barrier screen sampling. Malaria Journal, 18, Article: 96, DOI:10.1186/s12936-019-2742-x.
• Nguitragool W, Karl S, White M, Koepfli C, Felger I, Singhasivanon P, Mueller I and Sattabongkot J (2019) Highly heterogeneous residual malaria risk in western Thailand. International Journal for Parasitology, 49 (6), pp. 455-462, DOI:10.1016/j.ijpara.2019.01.004.
• Quah Y, Waltmann A, Karl S, White M, Vahi V, Darcy A, Pitakaka F, Whittaker M, Tisch D, Barry A, Barnadas C, Kazura J and Mueller I (2019) Molecular epidemiology of residual Plasmodium vivax transmission in a paediatric cohort in Solomon Islands. Malaria Journal, 18, Article: 106, DOI:10.1186/s12936-019-2727-9.
• Unger H, Hansa A, Buffet C, Hasang W, Teo A, Randall L, Ome-Kaius M, Karl S, Anuan A, Beeson J, Mueller I, Stock S and Rogerson S (2019) Sulphadoxine-pyrimethamine plus azithromycin may improve birth outcomes through impacts on inflammation and placental angiogenesis independent of malarial infection. Scientific Reports, 9, Article: 2260, DOI:10.1038/s41598-019-38821-2.
• Koimbu G, Czeher C, Katusele M, Sakur M, Kilepak L, Tandrapah A, Hetzel M, Pulford J, Robinson L and Karl S (2018) Status of insecticide resistance in Papua New Guinea: an update from nation-wide monitoring of Anopheles mosquitoes. American Journal of Tropical Medicine and Hygiene, 98 (1), pp. 162-165, DOI:10.4269/ajtmh.17-0454.
• Waltmann A, Koepfli C, Tessier N, Karl S, Fola A, Darcy A, Wini L, Harrison G, Barnadas C, Jennison C, Karunajeewa H, Boyd S, Whittaker M, Kazura J, Bahlo M, Mueller I and Barry A (2018) Increasingly inbred and fragmented populations of Plasmodium vivax associated with the eastward decline in malaria transmission across the Southwest Pacific. PLoS Neglected Tropical Diseases, 12 (1), DOI:10.1371/journal.pntd.0006146.
• Schofield L, Ioannidis L, Karl S, Robinson L, Tan Q, Poole D, Betuela I, Hill D, Siba P, Hansen D, Mueller I and Eriksson E (2017) Synergistic effect of IL-12 and IL-18 induces TIM3 regulation of gamma delta T cell function and decreases the risk of clinical malaria in children living in Papua New Guinea. BMC Medicine, 15, Article: 114, DOI:10.1186/s12916-017-0883-8.
• Karl S, Laman M, Moore B, Benjamin J, Salib M, Lorry L, Maripal S, Siba P, Robinson L, Mueller I and Davis T (2016) Risk factors for Plasmodium falciparum and Plasmodium vivax gametocyte carriage in Papua New Guinean children with uncomplicated malaria. Acta Tropica, 160, pp. 1-8, DOI:10.1016/j.actatropica.2016.04.002.
• Waltmann A, Karl S, Chiu C and Mueller I (2016) Limited degradation of the Plasmodium falciparum gametocyte marker pfs25 mRNA exposed to tropical temperatures: considerations for malaria transmission field studies. American Journal of Tropical Medicine and Hygiene, 94 (4), pp. 886-889, DOI:10.4269/ajtmh.15-0531.
• Candido R, Favero V, Duke M, Karl S, Gutiérrez L, Woodward R, Graeff-Teixeira C, Jones M and St. Pierre T (2015) The affinity of magnetic microspheres for Schistosoma eggs. International Journal for Parasitology, 45 (1), pp. 43-50, DOI:10.1016/j.ijpara.2014.08.011.

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ResearchOnline@JCU stores 19+ research outputs authored by Dr Stephan Karl from 2014 onwards.

Current and recent Research Funding to JCU is shown by funding source and project.

Advisory Accreditation: I can be on your Advisory Panel as a Primary or Secondary Advisor.

These Higher Degree Research projects are either current or by students who have completed their studies within the past 5 years at JCU. Linked titles show theses available within ResearchOnline@JCU.

Current

• Defining transmission of malaria parasites from humans to mosquitos in Papua New Guinea (PhD , Primary Advisor)

The map shows research collaborations by institution from the past 7 years.
Note: Map points are indicative of the countries or states that institutions are associated with.