qRT-PCR versus IFA-based quantification of male and female gametocytes in low-density <em>Plasmodium falciparum</em> infections and their relevance... (Publications)
Accurate quantification of female and male gametocytes and sex ratios in asymptomatic low-density malaria infections are important for assessing their transmission potential. Gametocytes often escape detection [...] negligible for human-to-mosquito transmission.Estimating the transmission potential of ultralow-density malaria infections informs interventions. Almost all infections with > /=1 female and male gametocyte per
Understanding the gap between access and use: a qualitative study on barriers and facilitators to insecticide-treated net use in Ghana (Publications)
a lack of information on the connection between the use of ITNs and malaria prevention. Falling ill or losing a loved one to malaria was the most powerful motivator for consistent ITN use. Participants
Sequence and diversity of T-cell receptor beta-chain V and J genes of the owl monkey <em>Aotus nancymaae</em> (Publications)
to infection with the human malaria parasite Plasmodium falciparum and has therefore been recommended by the World Health Organization as a model for the evaluation of malaria vaccine candidates. Recently
Very high carriage of gametocytes in asymptomatic low-density <em>Plasmodium falciparum</em> and <em>P. vivax</em> infections in western Thailand (Publications)
Plasmodium spp. are common in low endemicity areas worldwide, but outside Africa, their contribution to malaria transmission is poorly understood. Community-based studies with highly sensitive molecular diagnostics [...] gametocytes indicates that these infections may contribute substantially to the maintenance of local malaria transmission.
Peri-domestic vector control interventions using attractive targeted sugar baits and push-pull strategies (Publications)
Great challenges to sustained malaria and arbovirus control remain, including transmission by vectors that occur outdoors or outside of sleeping hours, the enormous scale of larval breeding in urban centres [...] finding could potentially be due to the size of these studies, because community-level protection from malaria using removal trapping has been demonstrated.
Safety and protective efficacy of PfSPZ vaccine administered to HIV negative and positive Tanzanian adults (Publications)
PfSPZ Vaccine, composed of attenuated Plasmodium falciparum (Pf) sporozoites (SPZ), protects against malaria. We conducted this clinical trial to assess the safety and efficacy of PfSPZ Vaccine in HIV positive [...] ts received 5 doses of PfSPZ Vaccine or normal saline over 28 days followed by controlled human malaria infection (CHMI) 3 weeks later. RESULTS: There were no solicited adverse events in the 9 HIV- and
Pathogens that cause acute febrile illness among children and adolescents in Burkina Faso, Madagascar and Sudan (Publications)
(11-19 years-old). Leading clinical diagnoses were respiratory tract infections [45.9% (282/615)], malaria [27.3% (168/615)], and gastrointestinal tract infections [10.7% (66/615)]. Through the TaqMan-Array [...] the most prevalent pathogen (10.2%). Overall, 69% (357/516) of patients with clinical diagnoses of malaria, respiratory, or gastrointestinal infections were prescribed a WHO-guideline-recommended empiric
<em>Plasmodium falciparum </em>infection and clinical indicators in relation to net coverage in central Côte d'Ivoire (Publications)
Sleeping under a net, particularly a long-lasting insecticidal net (LLIN), is associated with reduced malaria morbidity and mortality, but requires high coverage and adherence. In this study, parasitologically [...] and associations with net coverage explored. In Bozi and Yoho, LLINs were provided by the national malaria control programme, prior to the study and an additional catch-up coverage was carried out in Bozi
Implementing new health interventions in developing countries: why do we lose a decade or more? (Publications)
We undertook an analysis of the time required to begin implementation of four vaccines and three malaria interventions. We evaluated five milestones for each intervention, and assessed if the milestones [...] implementing any of the vaccines, increasing to an average of only 4% of LICs after 10 years. Each malaria intervention was used by an average of 7% of LICs after five years and 37% after 10 years. Four of
Antiparasitic chaiyaphumines from entomopathogenic <em>Xenorhabdus</em> sp. PB61.4 (Publications)
(1) showed good activity against Plasmodium falciparum (IC50 of 0.61 muM), the causative agent of malaria, and was active against other protozoal tropical disease causing agents