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Billy Ngasala
Researcher at Muhimbili University of Health and Allied Sciences
Publications - 99
Citations - 3144
Billy Ngasala is an academic researcher from Muhimbili University of Health and Allied Sciences. The author has contributed to research in topics: Malaria & Plasmodium falciparum. The author has an hindex of 27, co-authored 68 publications receiving 2552 citations. Previous affiliations of Billy Ngasala include Karolinska University Hospital & Uppsala University.
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Journal ArticleDOI
Assessing agreement between malaria slide density readings
Neal Alexander,Neal Alexander,David Schellenberg,Billy Ngasala,Billy Ngasala,Max Petzold,Chris Drakeley,Colin J. Sutherland +7 more
TL;DR: The proposed method defines limits of acceptable agreement in a way which allows for the natural increase in variability with parasite density, which includes defining the levels of between-reader variability, which are consistent with random variation: disagreements within these limits should not trigger additional readings.
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Outcome of artemether-lumefantrine treatment for uncomplicated malaria in HIV-infected adult patients on anti-retroviral therapy.
TL;DR: After 28 days of follow-up, AL was statistically safe and effective in the treatment of uncomplicated malaria in the NVP-arm, and the results of this study provide an indication of the possible impact of EFV on the performance of AL and the likelihood of it affecting uncomplication falciparum malaria treatment outcome.
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Efficacy of single dose primaquine with artemisinin combination therapy on P. falciparum gametocytes and transmission : A WWARN individual patient meta-analysis
Kasia Stepniewska,Georgina S Humphreys,Bronner P. Gonçalves,Elaine Craig,Roly Gosling,Philippe J Guerin,Ric N. Price,Karen I. Barnes,Jaishree Raman,Jaishree Raman,Jaishree Raman,Menno R. Smit,Umberto D'Alessandro,Will Stone,Will Stone,Anders Björkman,Aaron M. Samuels,Maria I Arroyo-Arroyo,Guido J. H. Bastiaens,Joelle Brown,Alassane Dicko,Badria B. El-Sayed,Salah-Eldin G El-zaki,Alice C Eziefula,Alice C Eziefula,Simon Kariuki,Titus K. Kwambai,Titus K. Kwambai,Amanda Maestre,Andreas Mårtensson,Dominic Mosha,Richard Mwaiswelo,Billy Ngasala,Joseph Okebe,Michelle E. Roh,Patrick Sawa,Alfred B. Tiono,Ingrid Chen,Chris Drakeley,Teun Bousema,Teun Bousema +40 more
TL;DR: Transmission blocking is achieved with 0.25 mg/kg PQ and gametocyte persistence and infectivity are lower when PQ is combined with artemether-lumefantrine compared to dihydroartemisinin-piperaquine, which indicates near complete prevention of transmission to mosquitoes.
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The Malaria-Protective Human Glycophorin Structural Variant DUP4 Shows Somatic Mosaicism and Association with Hemoglobin Levels.
Walid Algady,Sandra Louzada,Danielle Carpenter,Paulina Brajer,Anna Färnert,Anna Färnert,Ingegerd Rooth,Billy Ngasala,Billy Ngasala,Fengtang Yang,Marie-Anne Shaw,Edward J. Hollox +11 more
TL;DR: DUP4 is a complex structural variant that may be susceptible to somatic variation and show that DUP4 is associated with a malarial-related phenotype in a longitudinally followed population.
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Adherence to artemether-lumefantrine drug combination: a rural community experience six years after change of malaria treatment policy in Tanzania
TL;DR: The overall adherence six years after the change of malaria treatment policy was low and it is, therefore, important to continuously monitor the level of adherence to treatment in order to get the current situation and institute corrective measures on time.