Stephan Karl
- stephan.karl@jcu.edu.au
https://orcid.org/0000-0002-4294-6481- Principal Research Fellow, Malaria and Vector Biology
- Australian Institute of Tropical Health & Medicine
Projects
10
Publications
77
Awards
0
Contact Details
Principal Research Fellow, Malaria and Vector Biology
Biography
Associate Professor Stephan Karl is a Principal Research Fellow in the Australian Institute of Tropical Health and Medicine and leads the Vector-Borne Diseases Research Group at James Cook University. He also heads the Entomology Section at the Papua New Guinea Institute of Medical Research, where he directs a multidisciplinary research program of more than 50 staff.
An internationally recognised authority on malaria and arboviral diseases, Dr Karl integrates entomology, epidemiology, diagnostics, mathematical modelling and implementation science to improve disease surveillance and control and anticipate the effects of climate and environmental change. He has authored 109 research papers and leads a major portfolio supported by Australian and international funders.
His research has directly shaped global and national policy. His work on insecticide-treated nets contributed to the redevelopment of World Health Organization evaluation guidelines and changed procurement and quality-monitoring practices in Papua New Guinea. He also established PNG’s national insecticide-resistance monitoring program and leads research on emerging vector-control technologies, climate-related disease risks and next-generation diagnostic and surveillance tools.
Through long-term partnerships across PNG and the Pacific, Dr Karl translates evidence into policy and practice while building enduring regional scientific capability and strengthening health security.
Research
Projects
Mapping of Lymphatic Filariasis (LF) Prevalence in Papua New Guinea (PNG). (Old ID 28943)
01 Oct 2022 - 30 Apr 2024
Testing of insecticidal and repellency (Old ID 27123)
03 May 2021 - 02 May 2022
Substandard bed nets and malaria: Causes, Impact and Solutions (Old ID 26858)
01 Jan 2021 - 31 Mar 2025
Newly adopted tools and network against disease transmission (NATNAT). (Old ID 26848)
01 Oct 2019 - 31 Dec 2023
Plasmodium vivax transmission blocking studies in the South Pacific (Old ID 23455)
01 Dec 2018 - 30 Nov 2022
Field-based evaluation of a novel magneto-optical technique to diagnose malaria (Old ID 26456)
01 Jan 2017 - 30 Jun 2021
Teaching
Research Advisor Accreditation
Advisor Type
Primary
Output
Voss, Sofie; Andre, Helena; Kock, Florian; Karl, Marion; Josiassen, Alexander (2026) 'Guiding pro-environmental behaviour: examining the impact of cognitive and behavioural interventions on sustainable food choices in hospitality'. Journal of Sustainable Tourism, 34 (1):21-41. [DOI]
Teeluck, Mohabeer; Adegboye, Oyelola; Karl, Stephan; Iyaloo, Diana P.; McBryde, Emma (2025) 'Understanding the Effect of a Changing Climate on the Re-Emergence of Mosquito-Borne Diseases in Vulnerable Small Island Nations: A Systematic Review'. Zoonoses and Public Health, 72 (3):223-247. [DOI]
Millat-Martínez, Pere; Katusele, Michelle; Kasian, Bernadine; Omera, Elias; Jamea, Esther; Lorry, Lina; Casellas, Aina; Ouchi, Dan; Wali, Chilaka; Raulo, Sylvia; Elizah, Arthur; Kaman, Peter; Dau, Absalom; Sakur, Muker; Kilepak, Lemen; Yabu, Siub; Koata, Nelson; Kave, John; Toa, Michael; Urakusie, Christopher; Kongs, Charles; Kisba, Frank; Laman, Moses; Mitjà, Oriol; Pomat, William; Bassat, Quique; Karl, Stephan; Baro, Bàrbara (2025) 'Human and entomological determinants of malaria transmission in the Lihir Islands of Papua New Guinea: A cross-sectional study'. PLoS Neglected Tropical Diseases, 19 (1). [DOI]
Karl, S.; Skinner, E. B.; McEwen, S.; Keven, J.; Kisomb, J.; Robinson, L. J.; Laman, M. (2025) 'Climate Change Is Expected to Expand Malaria Transmission Range and Population at Risk in Papua New Guinea'. Geohealth, 9 (10). [DOI]
Orbán, Ágnes; Schumacher, Jan-Jonas; Mucza, Szilvia; Strinic, Ana; Molnár, Petra; Babai, Réka; Halbritter, András; Vértessy, Beáta G.; Karl, Stephan; Krohns, Stephan; Kézsmárki, István (2024) 'Magneto-optical assessment of Plasmodium parasite growth via hemozoin crystal size'. Scientific Reports, 14 . [DOI]
Keven, John B.; Vinit, Rebecca; Katusele, Michelle; Reimer, Lisa J.; Zimmerman, Peter A.; Karl, Stephan; Walker, Edward D. (2024) 'Genetic differentiation and bottleneck effects in the malaria vectors Anopheles farauti and Anopheles punctulatus after an LLIN-based vector control program in Papua New Guinea'. Ecology and Evolution, 14 (2). [DOI]
Global, asynchronous partial sweeps at multiple insecticide resistance genes in Aedes mosquitoes
2024
Schmidt, Thomas L.; Endersby-Harshman, Nancy M.; van Rooyen, Anthony R.J.; Katusele, Michelle; Vinit, Rebecca; Robinson, Leanne J.; Laman, Moses; Karl, Stephan; Hoffmann, Ary A. (2024) 'Global, asynchronous partial sweeps at multiple insecticide resistance genes in Aedes mosquitoes'. Nature Communications, 15 . [DOI]
Insufficient duration of insecticidal efficacy of Yahe® insecticide-treated nets in Papua New Guinea
2024
Bubun, Nakei; Anetul, Evodia; Koinari, Melanie; Johnson, Petrina H.; Makita, Leo S.; Freeman, Timothy W.; Robinson, Leanne J.; Laman, Moses; Karl, Stephan (2024) 'Insufficient duration of insecticidal efficacy of Yahe® insecticide-treated nets in Papua New Guinea'. Malaria Journal, 23 . [DOI]
Koinari, Melanie; Amos, Brogan; Townsend, Michael; Karl, Stephan (2023) 'Mosquito Repellent Efficacy of Australian Blue Cypress Callitris intratropica Essential Oil and a Topical Formulation under Laboratory and Field Conditions'. American Journal of Tropical Medicine and Hygiene, 109 (3):690-697. [DOI]
Journal Publication
ResearchOnline@JCU
Millat-Martínez, Pere; Baro, Bàrbara; Kasian, Bernadine; Lorry, Lina; Sanz, Sergi; Wali, Chilaka; Raulo, Sylvia; Elizah, Arthur; Koleala, Tamarah; Kaius-Ome, Maria; Karl, Stephan; Mitjà, Oriol; Laman, Moses; Pomat, William; Bassat, Quique (2023) 'A cross-sectional study to ascertain malaria prevalence among asymptomatic travellers arriving on the Lihir Group of Islands, Papua New Guinea: implications for elimination efforts'. Malaria Journal, 22 . [DOI]
Effect of short-term heating on bioefficacy of deltamethrin-coated long-lasting insecticidal nets
2022
Bubun, Nakei; Freeman, Timothy W.; Laman, Moses; Karl, Stephan (2022) 'Effect of short-term heating on bioefficacy of deltamethrin-coated long-lasting insecticidal nets'. American Journal of Tropical Medicine and Hygiene, 106 (3):828-830. [DOI]
Monteiro, Wuelton; Karl, Stephan; Kuehn, Andrea; Almeida, Anne; White, Michael; Vitor-Silva, Sheila; Melo, Gisely; Brito-Sousa, Jose Diego; Baia-Da-silva, Djane Clarys; Silva-Neto, Alexandre Vilhena; Sampaio, Vanderson; Bassat, Quique; Felger, Ingrid; Mueller, Ivo; Lacerda, Marcus (2022) 'Prevalence and force of Plasmodium vivax blood-stage infection and associated clinical malaria burden in the Brazilian Amazon'. Instituto Oswaldo Cruz, Rio de Janeiro. Memorias, 117 . [DOI]
Bubun, Nakei; Anetul, Evodia; Koinari, Melanie; Freeman, Timothy W.; Karl, Stephan (2022) 'Coating formulation change leads to inferior performance of long-lasting insecticidal nets in Papua New Guinea'. Malaria Journal, 21 . [DOI]
Koinari, Melanie; Bubun, Nakei; Amos, Brogan; Kiari, Kiari; Lahu, David; Karl, Stephan (2022) 'WHO cone bioassay boards with or without holes: relevance for bioassay outcomes in long-lasting insecticidal net studies'. Malaria Journal, 21 . [DOI]
Goi, Joelyn; Koinari, Melanie; Muker, Sakur; Vinit, Rebecca; Pomat, William; Williams, David T.; Karl, Stephan (2022) 'Comparison of Different Mosquito Traps for Zoonotic Arbovirus Vectors in Papua New Guinea'. American Journal of Tropical Medicine and Hygiene, 106 (3):823-827. [DOI]
Journal Publication
ResearchOnline@JCU
Tavul, Livingstone; Laman, Moses; Howard, Cade; Kotty, Bethuel; Samuel, Anna; Bjerum, Catherine; O’Brian, Kobie; Kumai, Steven; Amuga, Matthew; Lorry, Lina; Kerry, Zebedee; Kualawi, Melvin; Karl, Stephan; Makita, Leo; John, Lucy N.; Bieb, Sibauk; Wangi, James; Weil, Gary J.; Goss, Charles W.; Tisch, Daniel J.; Pomat, William; King, Christopher L.; Robinson, Leanne J. (2022) 'Safety and efficacy of mass drug administration with a single-dose triple-drug regimen of albendazole + diethylcarbamazine + ivermectin for lymphatic filariasis in Papua New Guinea: An open-label, cluster-randomised trial'. PLoS Neglected Tropical Diseases, 16 (2). [DOI]
Keven, John B.; Katusele, Michelle; Vinit, Rebecca; Rodríguez-Rodríguez, Daniela; Hetzel, Manuel W.; Robinson, Leanne J.; Laman, Moses; Karl, Stephan; Walker, Edward D. (2022) 'Vector composition, abundance, biting patterns and malaria transmission intensity in Madang, Papua New Guinea: assessment after 7 years of an LLIN-based malaria control programme'. Malaria Journal, 21 (1). [DOI]
Farquhar, Rachael; Dori, Annie; MacCana, Sarah; Tefuarani, Nakapi; Lavu, Evelyn; Barry, Alyssa; Karl, Stephan; Makita, Leo; Robinson, Leanne; Laman, Moses (2022) 'STRIVE PNG: using a partnership-based approach in implementation research to strengthen surveillance and health systems in Papua New Guinea'. Health Research Policy and Systems, 20 (1). [DOI]
Mueller, Ivo; Vantaux, Amelie; Karl, Stephan; Laman, Moses; Witkowski, Benoit; Pepey, Anais; Vinit, Rebecca; White, Michael; Barry, Alyssa; Beeson, James G.; Robinson, Leanne J. (2022) 'Asia-Pacific ICEMR: Understanding Malaria Transmission to Accelerate Malaria Elimination in the Asia Pacific Region'. American Journal of Tropical Medicine and Hygiene, 107 (4):131-137. [DOI]
Robinson, Leanne J.; Laman, Moses; Makita, Leo; Lek, Dysoley; Dori, Annie; Farquhar, Rachael; Vantaux, Amelie; Witkowski, Benoit; Karl, Stephan; Mueller, Ivo (2022) 'Asia-Pacific International Center of Excellence in Malaria Research: Maximizing Impact on Malaria Control Policy and Public Health in Cambodia and Papua New Guinea'. American Journal of Tropical Medicine and Hygiene, 107 (4):124-130. [DOI]
Katusele, Michelle; Lagur, Solomon; Endersby-harshman, Nancy; Demok, Samuel; Goi, Joelyn; Vincent, Naomi; Sakur, Muker; Dau, Absalom; Kilepak, Lemen; Gideon, Stephen; Pombreaw, Christine; Makita, Leo; Hoffmann, Ary; Robinson, Leanne J.; Laman, Moses; Karl, Stephan (2022) 'Insecticide resistance in malaria and arbovirus vectors in Papua New Guinea, 2017–2022'. Parasites & Vectors, 15 . [DOI]
Laman, Moses; Tavul, Livingstone; Karl, Stephan; Kotty, Bethuel; Kerry, Zebede; Kumai, Stephen; Samuel, Anna; Lorry, Lina; Timinao, Lincoln; Howard, S. Cade; Makita, Leo; John, Lucy; Bieb, Sibauk; Wangi, James; Albert, Jeffrey M.; Payne, Michael; Weil, Gary J.; Tisch, Daniel J.; Bjerum, Catherine M.; Robinson, Leanne J.; King, Christopher L. (2022) 'Mass drug administration of ivermectin, diethylcarbamazine, plus albendazole compared with diethylcarbamazine plus albendazole for reduction of lymphatic filariasis endemicity in Papua New Guinea: a cluster-randomised trial'. Lancet Infectious Diseases, 22 (8):1200-1209. [DOI]
Mbwambo, Stephen G.; Bubun, Nakei; Mbuba, Emmanuel; Moore, Jason; Mbina, Kasiani; Kamande, Dismas; Laman, Moses; Mpolya, Emmanuel; Odufuwa, Olukayode G.; Freeman, Tim; Karl, Stephan; Moore, Sarah J. (2022) 'Comparison of cone bioassay estimates at two laboratories with different Anopheles mosquitoes for quality assurance of pyrethroid insecticide-treated nets'. Malaria Journal, 21 (1). [DOI]
Schmidt, Thomas L.; Swan, Tom; Chung, Jessica; Karl, Stephan; Demok, Samuel; Yang, Qiong; Field, Matt; Muzari, Mutizwa Odwell; Ehlers, Gerhard; Brugh, Mathew; Bellwood, Rodney; Horne, Peter; Burkot, Thomas R.; Ritchie, Scott; Hoffmann, Ary A. (2021) 'Spatial population genomics of a recent mosquito invasion'. Molecular Ecology, 30 (5):1174-1189. [DOI]
Journal Publication
ResearchOnline@JCU
Timinao, Lincoln; Vinit, Rebecca; Katusele, Michelle; Koleala, Tamarah; Nate, Elma; Czeher, Cyrille; Burkot, Thmoas R.; Schofield, Louis; Felger, Ingrid; Mueller, Ivo; Laman, Moses; Robinson, Leanne J.; Karl, Stephan (2021) 'Infectivity of Symptomatic Malaria Patients to Anopheles farauti Colony Mosquitoes in Papua New Guinea'. Frontiers in Cellular and Infection Microbiology, 11 . [DOI]
Gul, Desmond; Rodríguez‑Rodríguez, Daniela; Nate, Elma; Auwan, Alma; Salib, Mary; Lorry, Lina; Keven, John B.; Katusele, Michelle; Rosado, Jason; Hofmann, Natalie; Ome-Kaise, Maria; Koepfli, Cristian; Felger, Ingrid; Kazura, James W.; Hetzel, Manuel W.; Mueller, Ivo; Karl, Stephan; Clements, Archie C.A.; Fowkes, Freya J.I.; Laman, Moses; Robinson, Leanne J. (2021) 'Investigating differences in village-level heterogeneity of malaria infection and household risk factors in Papua New Guinea'. Scientific Reports, 11 . [DOI]
Staunton, Kyran M.; Goi, Joelyn; Townsend, Michael; Ritchie, Scott A.; Crawford, Jacob E.; Snoad, Nigel; Karl, Stephan; Burkot, Thomas R. (2021) 'Effect of BG-Lures on the Male Aedes (Diptera: Culicidae) Sound Trap capture rates'. Journal of Medical Entomology, 58 (6):2425-2431. [DOI]
Timinao, Lincoln; Vinit, Rebecca; Katusele, Michelle; Schofield, Louis; Burkot, Thomas R.; Karl, Stephan (2021) 'Optimization of the feeding rate of Anopheles farauti s.s. colony mosquitoes in direct membrane feeding assays'. Parasites & Vectors, 14 . [DOI]
Orbán, Ágnes; Longley, Rhea J.; Sripoorote, Piyarat; Maneechai, Nongnuj; Nguitragool, Wang; Butykai, Ádám; Mueller, Ivo; Sattabongkot, Jetsumon; Karl, Stephan; Kézsmárki, István (2021) 'Sensitive detection of Plasmodium vivax malaria by the rotating-crystal magneto-optical method in Thailand'. Scientific Reports, 11 . [DOI]
Keven, John B; Katusele, Michelle; Rodrıguez-Rodrıguez, Daniela; Hetzel, Manuel W.; Robinson, Leanne J.; Laman, Moses; Karl, Stephan; Foran, David R; Walker, Edward D (2021) 'Nonrandom selection and multiple blood feeding of human hosts by Anopheles vectors: implications for malaria transmission in Papua New Guinea'. American Journal of Tropical Medicine and Hygiene, 105 (6):1747-1758. [DOI]
Journal Publication
ResearchOnline@JCU
Karl, Stephan; Katusele, Michelle; Freeman, Timothy W.; Moore, Sarah J. (2021) 'Quality control of long-lasting insecticidal nets: are we neglecting it?'. Trends in Parasitology, 37 (7):610-621. [DOI]
Journal Publication
ResearchOnline@JCU
Staunton, Kyran M.; Leiva, Donovan; Cruz, Alvaro; Goi, Joelyn; Aristqueta, Carlos; Liu, Jianyi; Desnoyer, Mark; Howell, Paul; Espinosa, Francia; Che Mendoza, Azael; Karl, Stephan; Crawford, Jacob E.; Xiang, Wei; Manrique-Saide, Pablo; Achee, Nicole L.; Grieco, John P.; Ritchie, Scott A.; Burkot, Thomas R.; Snoad, Nigel (2021) 'Outcomes from international field trials with Male Aedes Sound Traps: frequency-dependent effectiveness in capturing target species in relation to bycatch abundance'. PLoS Neglected Tropical Diseases, 15 (2). [DOI]
Millat‑Martínez, Pere; Gabong, Rebecca; Balanza, Núria; Luana, Sakaia; Sanz, Sergi; Raulo, Silvia; Elizah, Arthur; Wali, Chilaka; Paivu, Benjamin; Dalmas, Julian; Tabie, Samson; Karl, Stephan; Laman, Moses; Pomat, William; Mitja, Oriol; Baro, Barbara; Bassat, Quique (2021) 'Coverage, determinants of use and repurposing of long‑lasting insecticidal nets two years after a mass distribution in Lihir Islands, Papua New Guinea: a cross‑sectional study'. Malaria Journal, 20 . [DOI]
Unger, Holger W.; Longo, Valentina Laurita; Bleicher, Andie; Ome-Kaius, Maria; Karl, Stephan; Simpson, Julie A.; Karahalios, Amalia; Aitken, Elizabeth H.; Rogerson, Stephen J. (2021) 'The relationship between markers of antenatal iron stores and birth outcomes differs by malaria prevention regimen—a prospective cohort study'. BMC Medicine, 19 . [DOI]
Arndt, L.; Koleala, T.; Orbán, Á.; Ibam, C.; Lufele, E.; Timinao, L.; Lorry, L.; Butykai, Á.; Kaman, P.; Molnár, A.P.; Krohns, S.; Nate, E.; Kucsera, I.; Orosz, E.; Moore, B.; Robinson, L.J.; Laman, M.; Kézsmárki, I.; Karl, Stephan (2021) 'Magneto-optical diagnosis of symptomatic malaria in Papua New Guinea'. Nature Communications, 12 . [DOI]
Gruenberg, Maria; Hofmann, Natalie E.; Nate, Elma; Karl, Stephan; Robinson, Leanne J.; Lanke, Kjerstin; Smith, Thomas A.; Bousema, Teun; Felger, Ingrid (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):598-607. [DOI]
Molnár, Petra; Orbán, Ágnes; Izrael, Richard; Babai, Réka; Marton, Lívia; Butykai, Ádám; Karl, Stephan; Vértessy, Beáta G.; Kézsmárki, István (2020) 'Rapid and quantitative antimalarial drug efficacy testing via the magneto-optical detection of hemozoin'. Scientific Reports, 10 . [DOI]
Kattenberg, Johanna H.; Gumal, Dulcie L.; Ome-Kaius, Maria; Kiniboro, Benson; Philip, Matthew; Jally, Shadrach; Kasian, Bernadine; Sambale, Naomi; Siba, Peter M.; Karl, Stephan; Barry, Alyssa E.; Felger, Ingrid; Kazura, James W.; Mueller, Ivo; Robinson, Leanne J.; (2020) 'The epidemiology of Plasmodium falciparum and Plasmodium vivax in East Sepik Province, Papua New Guinea, pre- and post-implementation of national malaria control efforts'. Malaria Journal, 19 . [DOI]
Vinit, Rebecca; Timinao, Lincoln; Bubun, Nakei; Katusele, Michelle; Robinson, Leanne J.; Kaman, Peter; Sakur, Muker; Makita, Leo; Reimer, Lisa; Schofield, Louis; Pomat, William; Mueller, Ivo; Laman, Moses; Freeman, Tim; Karl, Stephan (2020) 'Decreased bioefficacy of long-lasting insecticidal nets and the resurgence of malaria in Papua New Guinea'. Nature Communications, 11 (7). [DOI]
Ome-Kaius, Maria; Kattenberg, Johanna Helena; Zaloumis, Sophie; Siba, Matthew; Kiniboro, Benson; Jally, Shadrach; Razook, Zahra; Mantila, Daisy; Sui, Desmond; Ginny, Jason; Rosanas-Urgell, Anna; Karl, Stephan; Obadia, Thomas; Barry, Alyssa; Rogerson, Stephen J.; Laman, Moses; Tisch, Daniel; Felger, Ingrid; Kazura, James W.; Mueller, Ivo; Robinson, Leanne J. (2019) 'Differential impact of malaria control
interventions on P. falciparum and P. vivax infections in young Papua New Guinean children'. BMC Medicine, 17 . [DOI]
Insecticide resistance status of Aedes aegypti and Aedes albopictus mosquitoes in Papua New Guinea
2019
Demok, Samuel; Endersby-Harshman, Nancy; Vinit, Rebecca; Timinao, Lincoln; Robinson, Leanne J.; Susapu, Melinda; Makita, Leo; Laman, Moses; Hoffmann, Ary; Karl, Stephan (2019) 'Insecticide resistance status of Aedes aegypti and Aedes albopictus mosquitoes in Papua New Guinea'. Parasites & Vectors, 12 . [DOI]
Keven, John B.; Katusele, Michelle; Vinit, Rebecca; Koimbu, Gussy; Vincent, Naomi; Thomsen, Edward K.; Karl, Stephan; Reimer, Lisa J.; Walker, Edward D. (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 . [DOI]
Quah, Yi Wan; Waltmann, Andreea; Karl, Stephan; White, Michael T.; Vahi, Ventis; Darcy, Andrew; Pitakaka, Freda; Whittaker, Maxine; Tisch, Daniel J.; Barry, Alyssa; Barnadas, Celine; Kazura, James; Mueller, Ivo (2019) 'Molecular epidemiology of residual Plasmodium vivax transmission in a paediatric cohort in Solomon Islands'. Malaria Journal, 18 . [DOI]
Nguitragool, Wang; Karl, Stephan; White, Michael; Koepfli, Cristian; Felger, Ingrid; Singhasivanon, Pratap; Mueller, Ivo; Sattabongkot, Jetsumon (2019) 'Highly heterogeneous residual malaria risk in western Thailand'. International Journal for Parasitology, 49 (6):455-462. [DOI]
Unger, Holger W.; Hansa, Annjaleen; Buffet, Christelle; Hasang, Wina; Teo, Andrew; Randall, Louise; Ome-Kaius, Maria; Karl, Stephan; Anuan, Ayen A.; Beeson, James G.; Mueller, Ivo; Stock, Sarah J.; Rogerson, Stephen J. (2019) 'Sulphadoxine-pyrimethamine plus azithromycin may improve birth outcomes through impacts on inflammation and placental angiogenesis independent of malarial infection'. Scientific Reports, 9 . [DOI]
He, Wen-Qiang; Karl, Stephan; White, Michael T.; Nguitragool, Wang; Monteiro, Wuelton; Kuehn, Andrea; Gruszczyk, Jakub; Franca, Camila T.; Sattabongkot, Jetsumon; Lacerda, Marcus V.G.; Thama, Wai-Hong; Mueller, Ivo (2019) 'Antibodies to Plasmodium vivax reticulocyte binding protein 2b are associated with protection against P. vivax malaria in populations living in low malaria transmission regions of Brazil and Thailand'. PLoS Neglected Tropical Diseases, 13 (8). [DOI]
White, Michael T.; Karl, Stephan; Koepfli, Cristian; Longley, Rhea J.; Hofmann, Natalie E.; Wampfler, Rahel; Felger, Ingrid; Smith, Tom; Nguitragool, Wang; Sattabongkot, Jetsumon; Robinson, Leanne; Ghani, Azra (2018) 'Plasmodium vivax and Plasmodium falciparum infection dynamics: re-infections, recrudescences and relapses'. Malaria Journal, 17 . [DOI]
Waltmann, Andrea; Koepfli, Cristian; Tessier, Natacha; Karl, Stephan; Fola, Abebe; Darcy, Andrew W.; Wini, Lyndes; Harrison, G. L. Abby; Barnadas, Céline; Jennison, Charlie; Karunajeewa, Harin; Boyd, Sarah; Whittaker, Maxine; Kazura, James; Bahlo, Melanie; Mueller, Ivo; Barry, Alyssa E. (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]
Koimbu, Gussy; Czeher, Cyrille; Katusele, Michelle; Sakur, Muker; Kilepak, Lemen; Tandrapah, Anthony; Hetzel, Manuel W.; Pulford, Justin; Robinson, Leanne; Karl, Stephan (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):162-165. [DOI]
Journal Publication
ResearchOnline@JCU
Nascimento, Joabi; Sampaio, Vanderson S.; Karl, Stephan; Kuehn, Andrea; Almeida, Anne; Vitor-Silva, Sheila; Cardoso de Melo, Gisely; Baia da Silva, Djane C.; Lopes, Stefanie C.P.; Fe', Nelson F.; Pereira Lima, Jose B.; Barbosa Guerra, Maria G.; Pimenta, Paula F.P.; Bassat, Quique; Mueller, Ivo; Lacerda, Marcus V.G.; Monteiro, Wuelton M. (2018) 'Use of anthropophilic culicid-based xenosurveillance as a proxy for Plasmodium vivax malaria burden and transmission hotspots identification'. PLoS Neglected Tropical Diseases, 12 (11). [DOI]
Tavul, Livingstone; Hetzel, Manuel W.; Teliki, Albina; Walsh, Dorish; Kiniboro, Benson; Rare, Lawrence; Pulford, Justin; Siba, Peter M.; Karl, Stephan; Makita, Leo; Robinson, Leanne; Kattenberg, Johanna H.; Laman, Moses; Oswyn, Gilchrist; Mueller, Ivo (2018) 'Efficacy of artemether–lumefantrine and dihydroartemisinin–piperaquine for the treatment of uncomplicated malaria in Papua New Guinea'. Malaria Journal, 17 . [DOI]
White, Michael T.; Walker, Patrick; Karl, Stephan; Hetzel, Manuel; Freeman, Tim; Waltmann, Andreea; Laman, Moses; Robinson, Leanne; Ghani, Azra; Mueller, Ivo (2018) 'Mathematical modelling of the impact of expanding levels of malaria control interventions on Plasmodium vivax'. Nature Communications, 9 . [DOI]
Ome-Kaius, Maria; Karl, Stephan; Wangnapi, Regina; Bolnga, John Walpe; Mola, Glen; Walker, Jane; Mueller, Ivo; Unger, Holger Werner; Rogerson, Stephen John (2017) 'Effects of Plasmodium falciparum infection on umbilical artery resistance and intrafetal blood flow distribution: a Doppler ultrasound study from Papua New Guinea'. Malaria Journal, 16 . [DOI]
Schofield, Louis; Ioannidis, Lisa J.; Karl, Stephan; Robinson, Leanne J.; Tan, Qiao Y.; Poole, Daniel P.; Betuela, Inoni; Hill, Danika L.; Siba, Peter M.; Hansen, Diana S.; Mueller, Ivo; Eriksson, Emily M/ (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 . [DOI]
Hofmann, Natalie; Karl, Stephan; Wampfler, Rahel; Kiniboro, Benson; Iga, Jonah; Waltmann, Andreea; Betuela, Inoni; Felger, Ingrid; Robinson, Leanne J.; Meuller, Ivo (2017) 'The complex relationship of exposure to new Plasmodium infections and incidence of clinical malaria in Papua New Guinea'. eLife, 6 . [DOI]
Wampfler, Rahel; Hofmann, Natalie E.; Karl, Stephan; Betuela, Inoni; Lorry, Lina; Silkey, Mariabeth; Robinson, Leanne; Mueller, Ivo; Felger, Ingrid (2017) 'Effects of liver-stage clearance by Primaquine on gametocyte carriage of Plasmodium vivax and P. falciparum'. PLoS Neglected Tropical Diseases, 11 (7). [DOI]
Sriwichai, Patchara; Karl, Stephan; Samung, Yudthana; Kiattibuti, Kirakorn; Sirichaisinthop, Jeeraphat; Mueller, Ivo; Cui, Liwang; Sattabongkot, Jetsumon (2017) 'Imported Plasmodium falciparum and locally transmitted Plasmodium vivax: cross-border malaria transmission scenario in northwestern Thailand'. Malaria Journal, 16 . [DOI]
Unger, Holger W.; Wangnapi, Regina A.; Ome-Kaius, Maria; Boeuf, Phillippe; Karl, Stephan; Mueller, Ivo; Rogerson, Stephen; (2016) 'Azithromycin-containing intermittent preventive treatment in pregnancy affects gestational weight gain, an important predictor of birthweight in Papua New Guinea - an exploratory analysis'. Maternal and Child Nutrition, 12 (4):699-712. [DOI]
Journal Publication
ResearchOnline@JCU
Karl, Stephan; Laman, Moses; Moore, Brioni R.; Benjamin, John M.; Salib, Mary; Lorry, Lina; Maripal, Samuel; Siba, Peter; Robinson, Leanne J.; Mueller, Ivo; Davis, Timothy M. E. (2016) 'Risk factors for Plasmodium falciparum and Plasmodium vivax gametocyte carriage in Papua New Guinean children with uncomplicated malaria'. Acta Tropica, 160 :1-8. [DOI]
Journal Publication
ResearchOnline@JCU
Waltmann, Andreea; Karl, Stephan; Chiu, Chris; Mueller, Ivo (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):886-889. [DOI]
Journal Publication
ResearchOnline@JCU
Karl, Stephan; White, Michael T.; Milne, George J.; Gurarie, David; Hay, Simon I.; Barry, Alyssa E.; Felger, Ingrid; Mueller, Ivo (2016) 'Spatial effects on the multiplicity of Plasmodium falciparum infections'. PLoS ONE, 11 (10). [DOI]
White, Michael T.; Shirreff, George; Karl, Stephan; Ghani, Azra C.; Mueller, Ivo (2016) 'Variation in relapse frequency and the transmission potential of Plasmodium vivax malaria'. Proceedings of the Royal Society of London Series B, Biological Sciences, 283 (1827). [DOI]
Karl, Stephan; Laman, Moses; Moore, Brioni R.; Benjamin, John; Koleala, Tamarah; Ibam, Clemencia; Kasian, Bernadine; Siba, Peter M.; Waltmann, Andreea; Mueller, Ivo; Woodward, Robert C.; St Pierre, Timothy G.; Davis, Timothy M.E. (2015) 'Gametocyte clearance kinetics determined by quantitative magnetic fractionation in Melanesian children with uncomplicated malaria treated with artemisinin combination therapy'. Antimicrobial Agents and Chemotherapy, 59 (8):4489-4496. [DOI]
Journal Publication
ResearchOnline@JCU
Candido, Renata R.F.; Favero, Vivian; Duke, Mary; Karl, Stephan; Gutiérrez, Lucía; Woodward, Robert C.; Graeff-Teixeira, Carlos; Jones, Malcolm K.; St. Pierre, Timothy G. (2015) 'The affinity of magnetic microspheres for Schistosoma eggs'. International Journal for Parasitology, 45 (1):43-50. [DOI]
Journal Publication
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Unger, Holger W.; Karl, Stephan; Wangnapi, Regina A.; Siba, Peter; Mola, Glen; Walker, Jane; Mueller, Ivo; Ome, Maria; Rogerson, Stephen J. (2015) 'Fetal size in a rural Melanesian population with minimal risk factors for growth restriction: an observational ultrasound study from Papua New Guinea'. American Journal of Tropical Medicine and Hygiene, 92 (1):178-186. [DOI]
Journal Publication
ResearchOnline@JCU
Robinson, Leanne J.; Wampfler, Rahel; Betuela, Inoni; Karl, Stephan; White, Michael T.; Suen, Connie S.N. Li Wai; Hofmann, Natalie E.; Kinboro, Benson; Waltmann, Andreea; Brewster, Jessica; Lorry, Lina; Tarongka, Nandao; Samol, Lornah; Silkey, Mariabeth; Bassat, Quique; Siba, Peter M.; Schofield, Louis; Felger, Ingrid; Mueller, Ivo (2015) 'Strategies for understanding and reducing the Plasmodium vivax and Plasmodium ovale hypnozoite reservoir in Papua New Guinean children: a randomised placebo-controlled trial and mathematical model'. PLoS Medicine, 12 (10). [DOI]
Orbán, Ágnes; Butykai, Ádám; Molnár, András; Pröhle, Zsófia; Fülöp, Gergö; Zelles, Tivadar; Forsyth, Wasan; Hill, Danika; Müller, Ivo; Schofield, Louis; Rebelo, Maria; Hänscheid, Thomas; Karl, Stephan; Kezsmárki, István (2014) 'Evaluation of a novel magneto-optical method for the detection of malaria parasites'. PLoS ONE, 9 (5):1-8. [DOI]
Horwood, Paul F.; Karl, Stephan; Mueller, Ivo; Jonduo, Marinjho H.; Pavlin, Boris I.; Dagina, Rosheila; Ropa, Berry; Bieb, Sibauk; Rosewell, Alexander; Umezaki, Masahiro; Siba, Peter M.; Greenhill, Andrew R. (2014) 'Spatio-temporal epidemiology of the cholera outbreak in Papua New Guinea, 2009–2011'. BMC Infectious Diseases, 14 (449):1-10. [DOI]
Karl, Stephan; Halder, Nilimesh; Kelso, Joel K.; Ritchie, Scott A.; Milne, George J. (2014) 'A spatial simulation model for dengue virus infection in urban areas'. BMC Infectious Diseases, 14 :1-17. [DOI]
Identification of Anisakis species (Nematoda: Anisakidae) in marine fish hosts from Papua New Guinea
2013
Koinari, M; Karl, S.; Elliot, A.; Ryan, U.; Lymbery, A.J. (2013) 'Identification of Anisakis species (Nematoda: Anisakidae) in marine fish hosts from Papua New Guinea'. Veterinary Parasitology, 193 (1-3):126-133. [DOI]
Journal Publication
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Koinari, M.; Karl, S.; Ryan, U.; Lymbery, A.J. (2013) 'Infection levels of gastrointestinal parasites in sheep and goats in Papua New Guinea'. Journal of Helminthology, 87 (4):409-415. [DOI]
Journal Publication
ResearchOnline@JCU
Koinari, M.; Karl, S.; Ng-Hublin, J.; Lymbery, A.J.; Ryan, U.M. (2013) 'Identification of novel and zoonotic Cryptosporidium species in fish from Papua New Guinea'. Veterinary Parasitology, 198 (1-2):1-9. [DOI]
Journal Publication
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Karl, Stephan; Davis, Timothy M.E.; St Pierre, Tim G. (2011) 'short report quantification of Plasmodium falciparum gametocytes by magnetic fractionation'. American Journal of Tropical Medicine and Hygiene, 84 (1):158-160. [DOI]
Journal Publication
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Karl, Stephan; Gutiérrez, Lucia; House, Michael J.; Davis, Timothy M.E.; St Pierre, Tim G. (2011) 'Short report: Nuclear magnetic resonance: a tool for malaria diagnosis?'. American Journal of Tropical Medicine and Hygiene, 85 (5):815-817. [DOI]
Journal Publication
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Schneider, Thomas; Karl, Stephan; Moore, Lee R.; Chalmers, Jeffrey J.; Williams, P. Stephen; Zborowski, Maciej (2010) 'Sequential CD34 cellfractionation by magnetophoresis in a magnetic dipole flow sorter'. Analyst, 135 (1):62-70. [DOI]
Journal Publication
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Gul, D.; Rodriguez Rodriguez, D.; Nate, E.; Hoffman, N.; Koepfli, C.; Salib, M.; Karl, S.; Hetzel, M.; Mueller, I.; Clements, A.; Fowkes, F.; Laman, M.; Robinson, L. (2021) 'Investigating within-village spatial heterogeneity of malaria infection over time on the north-coast of Papua New Guinea' International Journal of Infectious Diseases, 101 (S1) :434-434. [DOI]
Journal Contribution
ResearchOnline@JCU
Wiliams, David T.; Paradkar, Prasad; Karl, Stephan (2021) 'Arbovirus Detection in Vectors (Book Chapter)' In: Wiliams, David T., Paradkar, Prasad, and Karl, Stephan (2021) Arbovirus Detection in Vectors (Book Chapter). In: Tyagi, B.K, (ed.) Genetically Modified and other Innovative Vector Control Technologies: Eco-bio-social Considerations for Safe Application. Springer, Cham, Switzerland, pp. 277-295(Eds.). Genetically Modified and other Innovative Vector Control Technologies: Eco-bio-social Considerations for Safe Application. Cham, Switzerland : Springer. [DOI]
Book Chapter
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