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Malaria autochthonous

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https://www.readbyqxmd.com/read/29311638/an-assay-for-the-identification-of-plasmodium-simium-infection-for-diagnosis-of-zoonotic-malaria-in-the-brazilian-atlantic-forest
#1
Denise Anete Madureira de Alvarenga, Richard Culleton, Anielle de Pina-Costa, Danielle Fonseca Rodrigues, Cesare Bianco, Sidnei Silva, Ana Júlia Dutra Nunes, Julio César de Souza, Zelinda Maria Braga Hirano, Sílvia Bahadian Moreira, Alcides Pissinatti, Filipe Vieira Santos de Abreu, André Luiz Lisboa Areas, Ricardo Lourenço-de-Oliveira, Mariano Gustavo Zalis, Maria de Fátima Ferreira-da-Cruz, Patricia Brasil, Cláudio Tadeu Daniel-Ribeiro, Cristiana Ferreira Alves de Brito
Zoonotic malaria poses a unique problem for malaria control. Autochthonous cases of human malaria in the Atlantic Forest have recently been attributed to Plasmodium simium, a parasite that commonly infects non-human primates in this Brazilian biome. However, due to its close similarity at both the morphological and molecular level to Plasmodium vivax, the diagnosis of P. simium in this region remains problematic. Therefore, a diagnostic assay able to accurately identify P. simium is important for malaria surveillance...
January 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29236924/ecological-characterisation-and-infection-of-anophelines-diptera-culicidae-of-the-atlantic-forest-in-the-southeast-of-brazil-over-a-10-year-period-has-the-behaviour-of-the-autochthonous-malaria-vector-changed
#2
Julyana Cerqueira Buery, Helder Ricas Rezende, Licia Natal, Leonardo Santana da Silva, Regiane Maria Tironi de Menezes, Blima Fux, Rosely Dos Santos Malafronte, Aloisio Falqueto, Crispim Cerutti Junior
BACKGROUND In southeastern Brazil, autochthonous cases of malaria can be found near Atlantic Forest fragments. Because the transmission cycle has not been completely clarified, the behaviour of the possible vectors in those regions must be observed. A study concerning the entomological aspects and natural infection of anophelines (Diptera: Culicidae) captured in the municipalities of the mountainous region of Espírito Santo state was performed in 2004 and 2005. Similarly, between 2014 and 2015, 12 monthly collections were performed at the same area of the study mentioned above...
February 2018: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/29232457/imported-malaria-in-northern-italy-epidemiology-and-clinical-features-observed-over-18-years-in-the-teaching-hospital-of-brescia
#3
Paola Zanotti, Silvia Odolini, Lina Rachele Tomasoni, Cecilia Grecchi, Silvio Caligaris, Maurizio Gulletta, Alberto Matteelli, Veronica Cappa, Francesco Castelli
Background: Even though malaria incidence is decreasing worldwide, travel-related cases reported in Europe have remained stable in recent years. In Italy, incidence had increased in the 1990s, reaching a peak in 1999; a slow decline was then reported over the subsequent decade. To our knowledge, few published data are available on imported malaria in Italy since 2010. In this article we aimed to analyse trends in imported malaria in the teaching hospital of Brescia, northern Italy, over the last 18 years...
January 1, 2018: Journal of Travel Medicine
https://www.readbyqxmd.com/read/29211239/urban-malaria-transmission-in-a-non-endemic-area-in-the-andean-region-of-colombia
#4
Pablo E Chaparro, Karen Molina, Alberto Alzate, Julio Padilla, Myriam Arévalo-Herrera, Sócrates Herrera
BACKGROUND: Rapid urbanisation in difficult socio-economic conditions such as inadequate housing infrastructure, lack of public services, improper sanitation, and poor water drainage systems in vegetation-rich areas lead to ecological conditions that are conducive to the breeding of mosquitoes and transmission of malaria, in semi-urban and urban settings. OBJECTIVES: This study aimed to describe the cases of malaria that were reported in the peri-urban areas of Pereira (Colombia), between 2008 and 2015...
December 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/29175392/genetic-ancestry-effects-on-the-distribution-of-toll-like-receptors-tlrs-gene-polymorphisms-in-a-population-of-the-atlantic-forest-s%C3%A3-o-paulo-brazil
#5
Lilian O Guimarães, Miklos Maximiliano Bajay, Eliana F Monteiro, Gerhard Wunderlich, Sidney E Santos, Karin Kirchgatter
The innate immune system governed by toll-like receptors (TLRs) provides the first line of defense against pathogens. Surface-localized TLR1 and TLR6 are known to detect parasite components. TLR encoding genes were shown to display signatures of recent positive selection in Europeans and might be involved in local adaptation at immune-related genes. To verify the influence of Brazilian population admixture on the distribution of polymorphisms in TLRs, we analyzed the genotype frequencies of 24 polymorphisms distributed across five TLR genes in a Southeastern Brazilian population where autochthonous cases of malaria occur in small foci of transmission...
November 23, 2017: Human Immunology
https://www.readbyqxmd.com/read/29166907/quantifying-seasonal-and-diel-variation-in-anopheline-and-culex-human-biting-rates-in-southern-ecuador
#6
Sadie J Ryan, Catherine A Lippi, Philipp H Boersch-Supan, Naveed Heydari, Mercy Silva, Jefferson Adrian, Leonardo F Noblecilla, Efraín B Ayala, Mayling D Encalada, David A Larsen, Jesse T Krisher, Lyndsay Krisher, Lauren Fregosi, Anna M Stewart-Ibarra
BACKGROUND: Quantifying mosquito biting rates for specific locations enables estimation of mosquito-borne disease risk, and can inform intervention efforts. Measuring biting itself is fraught with ethical concerns, so the landing rate of mosquitoes on humans is often used as a proxy measure. Southern coastal Ecuador was historically endemic for malaria (Plasmodium falciparum and Plasmodium vivax), although successful control efforts in the 2000s eliminated autochthonous transmission (since 2011)...
November 22, 2017: Malaria Journal
https://www.readbyqxmd.com/read/29145859/singapore-s-anopheles-sinensis-form-a-is-susceptible-to-plasmodium-vivax-isolates-from-the-western-thailand-myanmar-border
#7
Sook-Cheng Pang, Chiara Andolina, Benoit Malleret, Peter R Christensen, Sai-Gek Lam-Phua, Muhammad Aliff Bin Abdul Razak, Chee-Seng Chong, Daiqin Li, Cindy S Chu, Bruce Russell, Laurent Rénia, Lee-Ching Ng, Francois Nosten
BACKGROUND: Singapore has been certified malaria-free by the World Health Organization since November 1982. However, sporadic autochthonous malaria outbreaks do occur. In one of the most recent outbreaks of vivax malaria, an entomological investigation identified Anopheles sinensis as the most probable vector. As metaphase karyotype studies divided An. sinensis into two forms, A and B, with different vector competence: the investigation of vector competence of An. sinensis found in Singapore was thus pursued using Plasmodium vivax field isolates from the Thailand-Myanmar border...
November 16, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28903890/human-parasitic-diseases-in-bulgaria-2013-2014
#8
Iskra Rainova, Rumen Harizanov, Iskren Kaftandjiev, Nina Tsvetkova, Ognyan Mikov, Eleonora Kaneva
BACKGROUND: In Bulgaria, more than 20 autochthonous human parasitic infections have been described and some of them are widespread. Over 50 imported protozoan and helminthic infections represent diagnostic and therapeutic challenge and pose epidemiological risk due to the possibility of local transmission. AIMS: To establish the distribution of autochthonous and imported parasitic diseases among the population of the country and to evaluate their significance for the public health system...
September 13, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28867401/outbreak-of-human-malaria-caused-by-plasmodium-simium-in-the-atlantic-forest-in-rio-de-janeiro-a-molecular-epidemiological-investigation
#9
Patrícia Brasil, Mariano Gustavo Zalis, Anielle de Pina-Costa, Andre Machado Siqueira, Cesare Bianco Júnior, Sidnei Silva, André Luiz Lisboa Areas, Marcelo Pelajo-Machado, Denise Anete Madureira de Alvarenga, Ana Carolina Faria da Silva Santelli, Hermano Gomes Albuquerque, Pedro Cravo, Filipe Vieira Santos de Abreu, Cassio Leonel Peterka, Graziela Maria Zanini, Martha Cecilia Suárez Mutis, Alcides Pissinatti, Ricardo Lourenço-de-Oliveira, Cristiana Ferreira Alves de Brito, Maria de Fátima Ferreira-da-Cruz, Richard Culleton, Cláudio Tadeu Daniel-Ribeiro
BACKGROUND: Malaria was eliminated from southern and southeastern Brazil over 50 years ago. However, an increasing number of autochthonous episodes attributed to Plasmodium vivax have recently been reported from the Atlantic Forest region of Rio de Janeiro state. As the P vivax-like non-human primate malaria parasite species Plasmodium simium is locally enzootic, we performed a molecular epidemiological investigation to determine whether zoonotic malaria transmission is occurring. METHODS: We examined blood samples from patients presenting with signs or symptoms suggestive of malaria as well as from local howler monkeys by microscopy and PCR...
August 31, 2017: Lancet Global Health
https://www.readbyqxmd.com/read/28662650/non-imported-malaria-in-non-endemic-countries-a-review-of-cases-in-spain
#10
Emilia Velasco, Diana Gomez-Barroso, Carmen Varela, Oliva Diaz, Rosa Cano
Spain declared the elimination of malaria in 1964. In non-endemic areas, the overwhelming majority of malaria cases are acquired abroad, and locally acquired infections are rare events. In Spain, malaria is a statutorily notifiable disease. During these fifty years more than ten thousand malaria cases have been reported, and about 0.8% of them did not have a history of recent travel. In this report, it was carried out a review of the ways in which malaria can be transmitted in non-endemic areas and a short description of the Spanish cases, aggregated by their transmission mechanisms...
June 29, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28615868/some-probable-factors-affecting-the-malaria-situation-before-and-at-the-beginning-of-a-pre-elimination-program-in-southeastern-iran
#11
Jalil Nejati, Seyed Mehdi Tabatabaei, Masoud Salehi, Abedin Saghafipour, Ehssan Mozafari
The area southeast of Iran still copes with malaria as an unstable infectious disease and includes the most autochthonous malaria reports in the country. This comprehensive study was carried out for the evaluation of environmental factors, welfare indicators and health facilities on the malaria situation before and at the beginning of a pre-elimination programme in this area. The probable factors affecting the malaria situation, including the water-pipe network, electricity, rainfall, long-lasting integrated nets (LLINs), indoor residual spraying and malaria diagnosis-treatment centres were analysed using SPSS software...
June 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28426114/infectious-diseases-and-migrant-worker-health-in-singapore-a-receiving-country-s-perspective
#12
REVIEW
Sapna P Sadarangani, Poh Lian Lim, Shawn Vasoo
Background: Approximately 1.4 million migrant workers reside in Singapore, presenting unique infectious disease challenges to both migrants and Singapore. Methods: A Pubmed, MEDLINE (Ovid), EBSCO Host (Global Health) and Google Scholar search was performed for both peer, non-peer reviewed articles and reports relevant to migrant health in Singapore, published between 1 January 1989 and 1 September 2016. Additional studies were identified from citations within searched articles...
July 1, 2017: Journal of Travel Medicine
https://www.readbyqxmd.com/read/28222159/the-role-of-spatial-mobility-in-malaria-transmission-in-the-brazilian-amazon-the-case-of-porto-velho-municipality-rond%C3%A3-nia-brazil-2010-2012
#13
COMPARATIVE STUDY
Jussara Rafael Angelo, Tony Hiroshi Katsuragawa, Paulo Chagastelles Sabroza, Lino Augusto Sander de Carvalho, Luiz Hildebrando Pereira da Silva, Carlos Afonso Nobre
BACKGROUND: This study aims to describe the role of mobility in malaria transmission by discussing recent changes in population movements in the Brazilian Amazon and developing a flow map of disease transmission in this region. METHODOLOGY/PRINCIPAL FINDINGS: This study presents a descriptive analysis using an ecological approach on regional and local scales. The study location was the municipality of Porto Velho, which is the capital of Rondônia state, Brazil...
2017: PloS One
https://www.readbyqxmd.com/read/28187764/new-potential-plasmodium-brasilianum-hosts-tamarin-and-marmoset-monkeys-family-callitrichidae
#14
Denise A M Alvarenga, Anielle Pina-Costa, Cesare Bianco, Silvia B Moreira, Patricia Brasil, Alcides Pissinatti, Claudio T Daniel-Ribeiro, Cristiana F A Brito
BACKGROUND: Non-human primates (NHPs) as a source for Plasmodium infections in humans are a challenge for malaria elimination. In Brazil, two species of Plasmodium have been described infecting NHPs, Plasmodium brasilianum and Plasmodium simium. Both species are infective to man. Plasmodium brasilianum resembles morphologically, genetically and immunologically the human quartan Plasmodium malariae. Plasmodium brasilianum naturally infects species of non-human primates from all New World monkey families from a large geographic area...
February 10, 2017: Malaria Journal
https://www.readbyqxmd.com/read/27979435/malaria-in-europe-follow-up-of-autochthonous-malaria-in-greece-and-new-risks
#15
Aitor Olaso, José M Ramos, María F López-Ballero, Ignacio Olaso
No abstract text is available yet for this article.
October 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/27893347/asymptomatic-infections-in-blood-donors-harbouring-plasmodium-an-invisible-risk-detected-by-molecular-and-serological-tools
#16
Giselle F M C Lima, Maria C Arroyo Sanchez, José E Levi, Mahyumi Fujimori, Luiza Da Cruz Caramelo, Arianni Rondelli Sanchez, Eduardo M Ramos-Sanchez, Juliana Inoue, Maria De Jesus Costa-Nascimento, Alfredo Mendrone Junior, Silvia M Di Santi
BACKGROUND: Transfusion-transmitted malaria due to asymptomatic Plasmodium infections is a challenge for blood banks. There is a lack of data on the prevalence of asymptomatic infected blood donors and the incidence of transfusion-transmitted malaria in low endemicity areas worldwide. We estimated the frequency of blood donors harbouring Plasmodium in an area in which asymptomatic infections have been reported. MATERIAL AND METHODS: To estimate the frequency of blood donors harbouring Plasmodium we used microscopy and molecular tools...
November 7, 2016: Blood Transfusion, Trasfusione del Sangue
https://www.readbyqxmd.com/read/27829067/molecular-epidemiology-of-p-vivax-in-iran-high-diversity-and-complex-sub-structure-using-neutral-markers-but-no-evidence-of-y976f-mutation-at-pvmdr1
#17
Yaghoob Hamedi, Khojasteh Sharifi-Sarasiabi, Farzaneh Dehghan, Reza Safari, Sheren To, Irene Handayuni, Hidayat Trimarsanto, Ric N Price, Sarah Auburn
BACKGROUND: Malaria remains endemic at low levels in the south-eastern provinces of Iran bordering Afghanistan and Pakistan, with the majority of cases attributable to P. vivax. The national guidelines recommend chloroquine (CQ) as blood-stage treatment for uncomplicated P. vivax, but the large influx of imported cases enhances the risk of introducing CQ resistance (CQR). METHODOLOGY AND PRINCIPAL FINDINGS: The genetic diversity at pvmdr1, a putative modulator of CQR, and across nine putatively neutral short tandem repeat (STR) markers were assessed in P...
2016: PloS One
https://www.readbyqxmd.com/read/27565658/source-identification-of-autochthonous-introduced-plasmodium-vivax-malaria-spain
#18
Laura Barrado, Carmen Ezpeleta, José Miguel Rubio, Carmen Martín, José Manuel Azcona, Miren Arteaga, Xabier Beristain, Ana Navascués, Eva Ongay, Jesús Castilla
In 2014, an autochthonous case of introduced malaria caused by Plasmodium vivax was identified in Spain. The strain that infected this patient was identical to that of a prior imported case from Pakistan. This is the first case where the source of infection could be identified since elimination in Spain.
February 2017: Infection
https://www.readbyqxmd.com/read/27527551/a-case-report-about-the-most-common-yet-most-forgotten-hepatitis-e
#19
Madhuri Chandnani, Mandeep Kaur, Anusha Ramadhas, Taisiya Tumarinson
BACKGROUND Hepatitis E virus (HEV) is the most common cause of enterically acquired acute viral hepatitis worldwide with major prevalence in the developing countries. An increasing number of sporadic cases of acute HEV infection have also been found in developed countries, but there is still no role for HEV testing in cases of seronegative acute hepatitis in such nonendemic regions. CASE REPORT A 59-year-old male residing in the United States for seven months with a history of malaria treated one year ago presented with fatigue and cholestatic jaundice with very high bilirubin levels...
August 16, 2016: American Journal of Case Reports
https://www.readbyqxmd.com/read/27479026/situation-of-sri-lanka-where-autochthonous-malaria-is-no-longer-a-problem-and-other-infections-dominate-such-as-dengue-leptospirosis-and-rickettsioses
#20
REVIEW
Suneth Agampodi, Buddhika Wijerathne, Kosala Weerakoon
PURPOSE OF REVIEW: Sri Lanka achieved a major milestone in communicable disease control in 2012 by reporting zero incidence of autochthonous malaria. However, reduction of malaria was associated with concurrent increase of several tropical diseases. This review looks into the time trends and epidemiology of these communicable diseases in Sri Lanka. RECENT FINDINGS: Reduction of malaria cases coincides with an increase of dengue, leptospirosis and rickettsioses in Sri Lanka...
October 2016: Current Opinion in Infectious Diseases
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