Stephan Karl

WHO cone bioassay boards with or without holes: relevance for bioassay outcomes in long-lasting insecticidal net studies.

Melanie Koinari, Nakei Bubun, Brogan Amos, Kiari Kiari, David Lahu, Stephan Karl

Journal article  |  2022  |  Malar J

BACKGROUND: The World Health Organization (WHO) cone bioassay is a key method used to evaluate the bioefficacy of long-lasting ins..

Coating formulation change leads to inferior performance of long-lasting insecticidal nets in Papua New Guinea.

Nakei Bubun, Evodia Anetul, Melanie Koinari, Timothy W Freeman, Stephan Karl

Journal article  |  2022  |  Malar J

BACKGROUND: Long-lasting insecticidal nets (LLINs) play a key role in reducing malaria transmission in endemic countries. In a pre..

Insecticide resistance in malaria and arbovirus vectors in Papua New Guinea, 2017-2022.

Michelle Katusele, Solomon Lagur, Nancy Endersby-Harshman, Samuel Demok, Joelyn Goi, Naomi Vincent, Muker Sakur, Absalom Dau, Lemen Kilepak, Stephen Gideon, Christine Pombreaw, Leo Makita, Ary Hoffmann, Leanne J Robinson, Moses Laman, Stephan Karl

Journal article  |  2022  |  Parasit Vectors

BACKGROUND: Insecticide resistance (IR) monitoring is essential for evidence-based control of mosquito-borne diseases. While wides..

Asia-Pacific ICEMR: Understanding Malaria Transmission to Accelerate Malaria Elimination in the Asia Pacific Region.

Ivo Mueller, Amelie Vantaux, Stephan Karl, Moses Laman, Benoit Witkowski, Anais Pepey, Rebecca Vinit, Michael White, Alyssa Barry, James G Beeson, Leanne J Robinson

Journal article  |  2022  |  Am J Trop Med Hyg

Gaining an in-depth understanding of malaria transmission requires integrated, multifaceted research approaches. The Asia-Pacific ..

Asia-Pacific International Center of Excellence in Malaria Research: Maximizing Impact on Malaria Control Policy and Public Health in Cambodia and Papua New Guinea.

Leanne J Robinson, Moses Laman, Leo Makita, Dysoley Lek, Annie Dori, Rachael Farquhar, Amelie Vantaux, Benoit Witkowski, Stephan Karl, Ivo Mueller

Journal article  |  2022  |  Am J Trop Med Hyg

The Asia-Pacific International Center of Excellence in Malaria Research (ICEMR) was funded in 2016 to conduct a coordinated set of..

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.

Moses Laman, Livingstone Tavul, Stephan Karl, Bethuel Kotty, Zebede Kerry, Stephen Kumai, Anna Samuel, Lina Lorry, Lincoln Timinao, S Cade Howard, Leo Makita, Lucy John, Sibauk Bieb, James Wangi, Jeffrey M Albert, Michael Payne, Gary J Weil, Daniel J Tisch, Catherine M Bjerum, Leanne J Robinson, et al.

Journal article  |  2022  |  Lancet Infect Dis

BACKGROUND: A single co-administered dose of a triple-drug regimen (ivermectin, diethylcarbamazine, and albendazole) has been show..

Comparison of cone bioassay estimates at two laboratories with different Anopheles mosquitoes for quality assurance of pyrethroid insecticide-treated nets.

Stephen G Mbwambo, Nakei Bubun, Emmanuel Mbuba, Jason Moore, Kasiani Mbina, Dismas Kamande, Moses Laman, Emmanuel Mpolya, Olukayode G Odufuwa, Tim Freeman, Stephan Karl, Sarah J Moore

Journal article  |  2022  |  Malar J

BACKGROUND: Quality assurance (QA) of insecticide-treated nets (ITNs) delivered to malaria-endemic countries is conducted by measu..

STRIVE PNG: using a partnership-based approach in implementation research to strengthen surveillance and health systems in Papua New Guinea

Rachael Farquhar, Annie Dori, Sarah MacCana, Nakapi Tefuarani, Evelyn Lavu, Alyssa Barry, Stephan Karl, Leo Makita, Leanne Robinson, Moses Laman

Journal article  |  2022  |  HEALTH RESEARCH POLICY AND SYSTEMS

Successful implementation research requires effective and equitable relationships between policy-makers, researchers and implement..

Safety and efficacy of mass drug administration with a single-dose triple-drug regimen of albendazole plus diethylcarbamazine plus ivermectin for lymphatic filariasis in Papua New Guinea: An open-label, cluster-randomised trial

Livingstone Tavul, Moses Laman, Cade Howard, Bethuel Kotty, Anna Samuel, Catherine Bjerum, Kobie O'Brian, Steven Kumai, Matthew Amuga, Lina Lorry, Zebedee Kerry, Melvin Kualawi, Stephan Karl, Leo Makita, Lucy N John, Sibauk Bieb, James Wangi, Gary J Weil, Charles W Goss, Daniel J Tisch, et al.

Journal article  |  2022  |  PLOS NEGLECTED TROPICAL DISEASES

BACKGROUND: Papua New Guinea (PNG) has a high burden of lymphatic filariasis (LF) caused by Wuchereria bancrofti, with an estimate..

Comparison of Different Mosquito Traps for Zoonotic Arbovirus Vectors in Papua New Guinea.

Joelyn Goi, Melanie Koinari, Sakur Muker, Rebecca Vinit, William Pomat, David T Williams, Stephan Karl

Journal article  |  2022  |  Am J Trop Med Hyg

Vector surveillance is important to control mosquito-borne diseases. We compared the efficacies of three mosquito-trapping devices..