IJERPH, Vol. 16, Pages 2954: Recent Incidence of Human Malaria Caused by Plasmodium knowlesi in the Villages in Kudat Peninsula, Sabah, Malaysia: Mapping of The Infection Risk Using Remote Sensing Data

IJERPH, Vol. 16, Pages 2954: Recent Incidence of Human Malaria Caused by Plasmodium knowlesi in the Villages in Kudat Peninsula, Sabah, Malaysia: Mapping of The Infection Risk Using Remote Sensing Data International Journal of Environmental Research and Public Health doi: 10.3390/ijerph16162954 Authors: Shigeharu Sato Bumpei Tojo Tomonori Hoshi Lis Izni Fanirah Minsong Omar Kwang Kugan Nelbon Giloi Kamruddin Ahmed Saffree Mohammad Jeffree Kazuhiko Moji Kiyoshi Kita Plasmodium knowlesi (Pk) is a malaria parasite that naturally infects macaque monkeys in Southeast Asia. Pk malaria, the zoonosis transmitted from the infected monkeys to the humans by Anopheles mosquito vectors, is now a serious health problem in Malaysian Borneo. To create a strategic plan to control Pk malaria, it is important to estimate the occurrence of the disease correctly. The rise of Pk malaria has been explained as being due to ecological changes, especially deforestation. In this research, we analysed the time-series satellite images of MODIS (MODerate-resolution Imaging Spectroradiometer) of the Kudat Peninsula in Sabah and created the “Pk risk map” on which the Land-Use and Land-Cover (LULC) information was visualised. The case number of Pk malaria of a village appeared to have a correlation with the quantity of two specific LULC classes, the mosaic landscape of oil palm groves and the nearby land-use patches of dense forest, surrounding the village. Apply...
Source: International Journal of Environmental Research and Public Health - Category: Environmental Health Authors: Tags: Article Source Type: research

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Platelets are anucleate cells produced by megakaryocytes. In recent years, a robust body of literature supports the evolving role of platelets as key sentinel and effector cells in infectious diseases, especially critical in bridging hemostatic, inflammatory, and immune continuums. Upon intravascular pathogen invasion, platelets can directly sense viral, parasitic, and bacterial infections through pattern recognition receptors and integrin receptors or pathogen: immunoglobulin complexes through Fc and complement receptors—although our understanding of these interactions remains incomplete. Constantly scanning for are...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
ConclusionThe P. berghei ookinete development assay is an excellent high throughput assay for efficiently identifying antimalarial molecules targeting early mosquito stage parasite development. Currently no high throughput transmission-blocking assay is capable of identifying all transmission-blocking molecules.
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
The recent resurgence of interest in sterile insect techniques to control vector mosquitoes has renewed interest in novel methods for observing mating behavior. Malarial vectors of the Anopheles gambiae complex a...
Source: Parasites and Vectors - Category: Microbiology Authors: Tags: Methodology Source Type: research
by David F. Read, Kate Cook, Yang Y. Lu, Karine G. Le Roch, William Stafford Noble Empirical evidence suggests that the malaria parasitePlasmodium falciparum employs a broad range of mechanisms to regulate gene transcription throughout the organism ’s complex life cycle. To better understand this regulatory machinery, we assembled a rich collection of genomic and epigenomic data sets, including information about transcription factor (TF) binding motifs, patterns of covalent histone modifications, nucleosome occupancy, GC content, and global 3D genome architecture. We used these data to train machine learning models ...
Source: PLoS Computational Biology - Category: Biology Authors: Source Type: research
This study aimed to investigate the effect of MCs activation on malaria disease severity using KunMing mice with Plasmodium berghei ANKA (PbANKA) infection treated with MCs degranulator (compound 48/80, C48/80) or MCs stabilizer (disodium cromoglycate, DSCG). PbANKA infection caused a dramatic increase in MCs density and level of MCs degranulation in cervical lymph node (CLN) and skin. Compared with infected control, C48/80 treatment had shortened survival time, increased parasitemia, exacerbated liver inflammation and CLN hyperplasia, accompanied with increase in vascular leakage and leukocyte number. The infected mice wi...
Source: Frontiers in cellular and infection microbiology - Category: Microbiology Source Type: research
It may be possible to eradicate malaria—one of history’s deadliest diseases—from the planet by 2050, according to a coalition of 41 leading scientists, economists and health-policy experts writing in the Lancet. “Malaria is one of the oldest and deadliest diseases of humankind,” says Sir Richard Feachem, one of the report’s authors and co-chair of the Lancet commission on malaria eradication. “If we, humankind, were to take on this challenge and eradicate malaria by 2050, it would be an achievement of historic proportions. There would be nothing quite like it.” Malaria, a mos...
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In this study, genetic variations in drug resistance markers of Plasmodium falciparum were determined in parasites from asymptomatic populations located in three geographically dispersed townships of Myanmar by PCR and sequencing. Mutations in dihydrofolate reductase (pfdhfr), dihydropteroate synthase (pfdhps), chloroquine resistance transporter (pfcrt), multidrug resistance protein 1 (pfmdr1), multidrug resistance-associated protein 1 (pfmrp1), and Kelch protein 13 (k13) were present in 92.3%, 97.6%, 84.0%, 98.8%, and 68.3% of the parasites, respectively. The pfcrt K76T, pfmdr1 N86Y, pfmdr1 I185K, and pfmrp1 I876V mutatio...
Source: Genes - Category: Genetics & Stem Cells Authors: Tags: Article Source Type: research
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Source: Biosensors and Bioelectronics - Category: Biotechnology Source Type: research
Purpose of review Malaria threatens the lives of over 200 million individuals with the disease each year. Plasmodium falciparum is the predominant cause of severe malaria which may be lethal and result in neurocognitive sequelae despite appropriate treatment. We review recent advances regarding the pathophysiology of severe malaria and treatment recommendations for severe disease in the United States. Recent findings Infected red blood cell (iRBC) sequestration in microvascular beds is a critical factor in the development of severe malaria syndromes. Interactions between iRBC variant adhesive peptides and the endothel...
Source: Current Opinion in Infectious Diseases - Category: Infectious Diseases Tags: TROPICAL AND TRAVEL-ASSOCIATED DISEASES: Edited by Christina Coyle Source Type: research
Authors: Mouatassem TF, Faraj C, Guemmouh R, Rais N, Lalami AEO Abstract Mosquitoes occupy a major health problem, as a potential vector for the transmission of many pathogens, the most important of which in Morocco are Plasmodium parasites and West Nile fever virus. Acquiring knowledge about the biotypology of these mosquitoes is an essential step in any control strategy. Thus, the objective of this study is to draw up an inventory of the culicidian fauna in the Fez region (North-central part of Morocco) and to determine the physicochemical parameters influencing the production of mosquito larvae of aquatic habita...
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