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Malaria surveillance

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https://www.readbyqxmd.com/read/28096860/determination-of-asymptomatic-malaria-among-afghani-and-pakistani-immigrants-and-native-population-in-south-of-kerman-province-iran
#1
Mohammad Bagher Amirshekari, Mehdi Nateghpour, Ahmad Raeisi, Afsaneh Motevalli Haghi, Leila Farivar, Gholamhosein Edrissian
BACKGROUND: This study was proposed to monitor the situation of asymptomatic malaria among the native population and Afghani and Pakistani immigrants in Kahnooj and Ghale-Ganj districts from Kerman Province, Southeastern Iran. METHODS: A number of 180 and 120 individuals from Kahnooj and Ghale-Ganj respectively were registered and considered based on a cross-sectional surveillance method. From 300 registered cases, 200 individuals (66.7%) were selected among Afghani and Pakistani immigrants and the rest (33...
April 2016: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28078947/monitoring-of-plasmodium-infection-in-humans-and-potential-vectors-of-malaria-in-a-newly-emerged-focus-in-southern-iran
#2
Mohsen Kalantari, Zahra Soltani, Mostafa Ebrahimi, Masoud Yousefi, Masoumeh Amin, Ayda Shafiei, Kourosh Azizi
Despite control programs, which aim to eliminate malaria from Iran by 2025, transmission of malaria has not been removed from the country. This study aimed to monitor malaria from asymptomatic parasitaemia and clinical cases from about one year of active case surveillance and potential vectors of malaria in the newly emerged focus of Mamasani and Rostam, southern Iran during 2014-2015. Samples were collected and their DNAs were extracted for Polymerase Chain Reaction (PCR) assay using specific primers for detection of Plasmodium species...
January 12, 2017: Pathogens and Global Health
https://www.readbyqxmd.com/read/28073733/antibiotic-therapy-and-staphylococcal-skin-infections-in-a-tropical-malarial-zone-guyana-practices-in-conventional-and-exceptional-situations
#3
S-P Corcostegui, H Lefort, A Dia, V Pommier de Santi, C Carfantan, J Galant, E Lightburne, P Guénot, X Deparis, R Migliani, J-J Morand
A problem of community-acquired Staphylococcus aureus skin infections emerged in the French armed forces in 2004, in a malaria-endemic areas. The high incidence rate led us to evaluate military staff practices. This was a cross-sectional survey of doctors and nurses deployed as officers in French Guyana since 2006. The definition of skin and soft-tissue infection came from the criteria for epidemiological surveillance of the armed forces. We studied the management of antibiotic therapy and its related difficulties...
November 1, 2016: Médecine et Santé Tropicales
https://www.readbyqxmd.com/read/28070009/a-malaria-ecology-index-predicted-spatial-and-temporal-variation-of-malaria-burden-and-efficacy-of-antimalarial-interventions-based-on-african-serological-data
#4
Gordon C McCord, Jesse K Anttila-Hughes
Reducing the global health burden of malaria is complicated by weak reporting systems for infectious diseases and a paucity of vital statistics registration. This limits our ability to predict changes in malaria health burden intensity, target antimalarial resources where needed, and identify malaria impacts in retrospective data. We refined and deployed a temporally and spatially varying Malaria Ecology Index (MEI) incorporating climatological and ecological data to estimate malaria transmission strength and validate it against cross-sectional serology data from 39,875 children from seven sub-Saharan African countries...
January 9, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28069653/the-molecular-epidemiology-of-pf-k13-mutations-in-senegal-using-targeted-amplicon-deep-sequencing
#5
Eldin Talundzic, Yaye D Ndiaye, Awa B Deme, Christian Olsen, Dhruviben S Patel, Shweta Biliya, Rachel Daniels, Fredrik O Vannberg, Sarah K Volkman, Venkatachalam Udhayakumar, Daouda Ndiaye
The emergence of Plasmodium falciparum (Pf) resistance to artemisinin in Southeast Asia threatens malaria control and elimination activities worldwide. Multiple polymorphisms in the Pf kelch gene found in chromosome 13 (Pfk13) have been associated with artemisinin resistance. Surveillance of potential drug resistance loci within a population that may emerge under increasing drug pressure is an important public health activity. In this context, P. falciparum infections from an observational surveillance study in Senegal were genotyped using targeted amplicon deep sequencing (TADS) for Pfk13 polymorphisms...
January 9, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28069065/exploring-the-potential-of-using-cattle-for-malaria-vector-surveillance-and-control-a-pilot-study-in-western-kenya
#6
Margaret M Njoroge, Inaki Tirados, Steven W Lindsay, Glyn A Vale, Stephen J Torr, Ulrike Fillinger
BACKGROUND: Malaria vector mosquitoes with exophilic and zoophilic tendencies, or with a high acceptance of alternative blood meal sources when preferred human blood-hosts are unavailable, may help maintain low but constant malaria transmission in areas where indoor vector control has been scaled up. This residual transmission might be addressed by targeting vectors outside the house. Here we investigated the potential of insecticide-treated cattle, as routinely used for control of tsetse and ticks in East Africa, for mosquito control...
January 10, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28061853/location-location-location-environmental-factors-better-predict-malaria-positive-individuals-during-reactive-case-detection-than-index-case-demographics-in-southern-province-zambia
#7
David A Larsen, Tokozile Ngwenya-Kangombe, Sanford Cheelo, Busiku Hamainza, John Miller, Anna Winters, Daniel J Bridges
BACKGROUND: Decreasing malaria transmission leads to increasing heterogeneity with increased risk in both hot spots (locations) and hot pops (certain demographics). In Southern Province, Zambia, reactive case detection has formed a part of malaria surveillance and elimination efforts since 2011. Various factors may be associated with finding malaria infections during case investigations, including the demographics of the incident case and environmental characteristics of the location of the incident case...
January 6, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28057165/current-and-future-diagnostic-tests-for-ebola-virus-disease
#8
Bharti Singh, Advaita Ganguly, Hoon H Sunwoo
Ebola virus disease (EVD) is a major public health concern with a high mortality rate in infected individuals. Outbreaks of Ebola have been widespread-there is no rapid, sensitive, specific, and affordable diagnostic test for the virus, nor there is any treatment for the disease. Overlapping symptoms of other endemic diseases, such as malaria and cholera, make it difficult to diagnose EVD. For clinical management, outbreak investigation, and proper surveillance, EVD requires a detection system, which should be fast, sensitive, specific, efficient, affordable, and user-friendly with in-country staff...
October 2016: Journal of Pharmacy & Pharmaceutical Sciences: a Publication of the Canadian Society for Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28056949/the-treatment-of-non-malarial-febrile-illness-in-papua-new-guinea-findings-from-cross-sectional-and-longitudinal-studies-of-health-worker-practice
#9
Olga P M Saweri, Manuel W Hetzel, Ivo Mueller, Peter M Siba, Justin Pulford
BACKGROUND: The Papua New Guinea Department of Health recently shifted from a presumptive to a 'test and treat' malaria case management policy. This shift was supported by the widespread introduction of malaria rapid diagnostic tests in health facilities across the country. Health workers received training and job-aids detailing how to conduct and interpret a malaria rapid diagnostic test and how to treat test positive cases; however, little instruction on treating non-malaria febrile cases was provided...
January 5, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28049524/maldi-tof-ms-as-an-innovative-tool-for-detection-of-plasmodium-parasites-in-anopheles-mosquitoes
#10
Maureen Laroche, Lionel Almeras, Emilie Pecchi, Yassina Bechah, Didier Raoult, Angèle Viola, Philippe Parola
BACKGROUND: Malaria is still a major public health issue worldwide, and one of the best approaches to fight the disease remains vector control. The current methods for mosquito identification include morphological methods that are generally time-consuming and require expertise, and molecular methods that require laboratory facilities with relatively expensive running costs. Matrix-Assisted Laser Desorption Ionization Time-Of-Flight Mass Spectrometry (MALDI-TOF MS) technology, routinely used for bacterial identification, has recently emerged in the field of entomology...
January 3, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28049489/evidence-of-non-plasmodium-falciparum-malaria-infection-in-k%C3%A3-dougou-s%C3%A3-n%C3%A3-gal
#11
Rachel F Daniels, Awa Bineta Deme, Jules F Gomis, Baba Dieye, Katelyn Durfee, Julie I Thwing, Fatou B Fall, Mady Ba, Medoune Ndiop, Aida S Badiane, Yaye Die Ndiaye, Dyann F Wirth, Sarah K Volkman, Daouda Ndiaye
BACKGROUND: Expanded malaria control efforts in Sénégal have resulted in increased use of rapid diagnostic tests (RDT) to identify the primary disease-causing Plasmodium species, Plasmodium falciparum. However, the type of RDT utilized in Sénégal does not detect other malaria-causing species such as Plasmodium ovale spp., Plasmodium malariae, or Plasmodium vivax. Consequently, there is a lack of information about the frequency and types of malaria infections occurring in Sénégal...
January 3, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28049486/towards-eliminating-malaria-in-high-endemic-countries-the-roles-of-community-health-workers-and-related-cadres-and-their-challenges-in-integrated-community-case-management-for-malaria-a-systematic-review
#12
REVIEW
Bruno F Sunguya, Linda B Mlunde, Rakesh Ayer, Masamine Jimba
BACKGROUND: Human resource for health crisis has impaired global efforts against malaria in highly endemic countries. To address this, the World Health Organization (WHO) recommended scaling-up of community health workers (CHWs) and related cadres owing to their documented success in malaria and other disease prevention and management. Evidence is inconsistent on the roles and challenges they encounter in malaria interventions. This systematic review aims to summarize evidence on roles and challenges of CHWs and related cadres in integrated community case management for malaria (iCCM)...
January 3, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28040684/assessment-of-the-french-national-health-insurance-information-system-as-a-tool-for-epidemiological-surveillance-of-malaria
#13
François Delon, Aurélie Mayet, Marc Thellier, Eric Kendjo, Rémy Michel, Lénaïck Ollivier, Gilles Chatellier, Guillaume Desjeux
OBJECTIVE: Epidemiological surveillance of malaria in France is based on a hospital laboratory sentinel surveillance network. There is no comprehensive population surveillance. The objective of this study was to assess the ability of the French National Health Insurance Information System to support nationwide malaria surveillance in continental France. MATERIALS AND METHODS: A case identification algorithm was built in a 2-step process. First, inclusion rules giving priority to sensitivity were defined...
December 31, 2016: Journal of the American Medical Informatics Association: JAMIA
https://www.readbyqxmd.com/read/28039354/changing-antimalarial-drug-resistance-patterns-identified-by-surveillance-at-three-sites-in-uganda
#14
Patrick Tumwebaze, Stephen Tukwasibwe, Aimee Taylor, Melissa Conrad, Emmanuel Ruhamyankaka, Victor Asua, Andrew Walakira, Joaniter Nankabirwa, Adoke Yeka, Sarah G Staedke, Bryan Greenhouse, Samuel L Nsobya, Moses R Kamya, Grant Dorsey, Philip J Rosenthal
We assessed Plasmodium falciparum drug resistance markers in parasites collected in 2012, 2013, and 2015 at 3 sites in Uganda. The prevalence and frequency of parasites with mutations in putative transporters previously associated with resistance to aminoquinolines, but increased sensitivity to lumefantrine (pfcrt 76T; pfmdr1 86Y and 1246Y), decreased markedly at all sites. Antifolate resistance mutations were common, with apparent emergence of mutations (pfdhfr 164L; pfdhps 581G) associated with high level resistance...
December 29, 2016: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27998292/genetic-evidence-that-the-makira-region-in-northeastern-madagascar-is-a-hotspot-of-malaria-transmission
#15
Benjamin L Rice, Christopher D Golden, Evelin Jean Gasta Anjaranirina, Carolina Mastella Botelho, Sarah K Volkman, Daniel L Hartl
BACKGROUND: Encouraging advances in the control of Plasmodium falciparum malaria have been observed across much of Africa in the past decade. However, regions of high relative prevalence and transmission that remain unaddressed or unrecognized provide a threat to this progress. Difficulties in identifying such localized hotspots include inadequate surveillance, especially in remote regions, and the cost and labor needed to produce direct estimates of transmission. Genetic data can provide a much-needed alternative to such empirical estimates, as the pattern of genetic variation within malaria parasite populations is indicative of the level of local transmission...
December 20, 2016: Malaria Journal
https://www.readbyqxmd.com/read/27989728/mayaro-virus-a-forest-virus-primed-for-a-trip-to-the-city
#16
Ian M Mackay, Katherine E Arden
Mayaro virus (MAYV) is an emerging arthropod-borne virus (arbovirus). Infection by MAYV can produce Mayaro virus disease (MAYVD) which is usually a clinically diagnosed, acute, febrile illness associated with prolonged and painful joint inflammation and swelling. MAYVD may be clinically indistinguishable from dengue, chikungunya fever, malaria, rabies, measles or other arboviral diseases. The full spectrum of disease, sequelae, routes of infection, virus shedding and any rarer means of transmission remain undefined...
December 2016: Microbes and Infection
https://www.readbyqxmd.com/read/27982304/anopheles-fauna-of-coastal-cayenne-french-guiana-modelling-and-mapping-of-species-presence-using-remotely-sensed-land-cover-data
#17
Antoine Adde, Isabelle Dusfour, Emmanuel Roux, Romain Girod, Sébastien Briolant
Little is known about the Anopheles species of the coastal areas of French Guiana, or their spatiotemporal distribution or environmental determinants. The present study aimed to (1) document the distribution of Anopheles fauna in the coastal area around Cayenne, and (2) investigate the use of remotely sensed land cover data as proxies of Anopheles presence. To characterise the Anopheles fauna, we combined the findings of two entomological surveys that were conducted during the period 2007-2009 and in 2014 at 37 sites...
December 2016: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/27968827/operational-challenges-to-the-1-3-7-surveillance-strategy-for-malaria-elimination-in-china-a-qualitative-study
#18
Guang-Yu Lu, Yao-Bao Liu, Claudia Beiersmann, Yu Feng, Jun Cao, Olaf Müller
BACKGROUND: China aims to eliminate malaria by 2020. In 2012, China launched its 1-3-7 malaria surveillance strategy, which refers to case reporting within one day, case investigation within three days, and focus investigation and public health actions within seven days. The aim of this study was to identify operational challenges to the 1-3-7 surveillance strategy. METHODS: This qualitative study was conducted in northwestern (Gansu Province) and southeastern (Jiangsu Province) China...
October 2016: Lancet
https://www.readbyqxmd.com/read/27941968/reactive-case-detection-for-plasmodium-vivax-malaria-elimination-in-rural-amazonia
#19
Pablo S Fontoura, Bruna F Finco, Nathália F Lima, Jaques F de Carvalho, Joseph M Vinetz, Márcia C Castro, Marcelo U Ferreira
BACKGROUND: Malaria burden in Brazil has reached its lowest levels in 35 years and Plasmodium vivax now accounts for 84% of cases countrywide. Targeting residual malaria transmission entrenched in the Amazon is the next major challenge for ongoing elimination efforts. Better strategies are urgently needed to address the vast reservoir of asymptomatic P. vivax carriers in this and other areas approaching malaria elimination. METHODS: We evaluated a reactive case detection (RCD) strategy tailored for P...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27939610/changes-in-malaria-epidemiology-in-africa-and-new-challenges-for-elimination
#20
REVIEW
Irene N Nkumama, Wendy P O'Meara, Faith H A Osier
Although the burden of Plasmodium falciparum malaria is gradually declining in many parts of Africa, it is characterized by spatial and temporal variability that presents new and evolving challenges for malaria control programs. Reductions in the malaria burden need to be sustained in the face of changing epidemiology whilst simultaneously tackling significant pockets of sustained or increasing transmission. Large-scale, robust surveillance mechanisms that measure rather than estimate the actual burden of malaria over time from large areas of the continent where such data are lacking need to be prioritized...
December 6, 2016: Trends in Parasitology
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