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Gutiérrez JD, Altamiranda-Saavedra M, Ávila-Jiménez J, Martins IA, Virginio F. Effect of environmental variables on the incidence of Visceral Leishmaniasis in Brazil and Colombia. Acta Trop 2024; 252:107131. [PMID: 38281614 DOI: 10.1016/j.actatropica.2024.107131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 01/23/2024] [Accepted: 01/23/2024] [Indexed: 01/30/2024]
Abstract
Visceral Leishmaniasis (VL) is the most severe of the three forms of Leishmaniasis. In the Americas, Brazil and Colombia present more than 90 % of the cases in the region. Our aim in this research was to estimate the association of the incidence rate of Visceral Leishmaniasis with the following environmental variables: the percentage of area suitable for the vector Lutzomyia longipalpis, the episodes of La Niña and El Niño, the Brazilian and Colombian biomes. Epidemiological data were obtained from the Brazilian Notifiable Diseases Information System and the Colombian National Public Health Surveillance System. Environmental data were downloaded from the NASA Giovanni web app, the Modis Sensor database, and the meteorological agencies of Australia, Japan, and the United States of America. Records of the presence of Lu. longipalpis were obtained from public databases and previous studies. As a result, the incidence per 10,000 inhabitants with LEBS for each El Niño-Southern Oscillation (ENSO) episode showed the largest values during El Niño 2015-2016, mainly in Brazil's Northeast and Central regions and the Northeast region of Colombia. Compared with the Neutral 2012-2014 episode, the episodes of El Niño 2015-2016 and La Niña 2010-2011 showed an average increase in the monthly incidence rate of VL, and the average increase was higher during El Niño 2015-2016 (aIRR = 2.304 vs.1.453) We found a positive association between the incidence rate of VL and the El Niño 2015-2016 episode and an impressive% of area suitable for the vector Lu. longipalpis in the Amazon region.An increase of 1 % in the area suitable for the vector Lu. longipalpis leads to an average rise of 0.8 % in the monthly incidence rate of VL. Our study shows a possible association between VL incidence and ENSO, with the most considerable incidence rates observed during El Niño 2015-2016 in Brazil's Northeast and Central regions and the Northeast region of Colombia. The present study is very important to better understand the Visceral Leishmaniasis transmission dynamics.
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Affiliation(s)
- Juan David Gutiérrez
- Facultad de Ciencias Médicas y de la Salud, Universidad de Santander, Instituto Masira, Bucaramanga, Santander, Colombia
| | - Mariano Altamiranda-Saavedra
- Grupo de Investigación Bioforense, Facultad de Derecho y Ciencias Forenses, Tecnológico de Antioquia Institución Universitaria, Antioquia, Colombia
| | - Julián Ávila-Jiménez
- Maestría en Ciencias Biológicas, Universidad Pedagógica y Tecnológica de Colombia, Tunja, Boyacá, Colombia
| | - Iris Amati Martins
- Laboratório de Ecologia da Paisagem e Conservação, LEPaC, Universidade de São Paulo, Brazil
| | - Flávia Virginio
- Grupo de Pesquisa em Entomologia Médica, Instituto Butantan, São Paulo, Brazil.
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Diele-Viegas LM, Sales LP, Slobodian V, Virginio F, de Araújo Sousa S, Pareja-Mejía D, Bacon CD, Mugarte ASX, Amati-Martins I, Dias-Silva F, Araújo OGS, Nassif J, Carvalho M, Luz C, Soares BE, Pêgas RV, Souza LG. Productivity in academia: When the rules determine the losers. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.1021812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Abstract
Arthropod-borne viruses have a significant impact on public health worldwide, and their (re) emergence put aside the importance of other circulating arboviruses. Therefore, this scoping review aims to identify and characterize the literature produced in recent years, focusing on aspects of two arboviruses: Mayaro virus and Oropouche orthobunyavirus. The Mayaro and Oropouche viruses were isolated for the first time in Trinidad and Tobago in 1954 and 1955, respectively, and have more recently caused numerous outbreaks. In addition, they have been incriminated as candidate diseases for human epidemics. These viruses have been drawing the attention of public health authorities worldwide following recent outbreaks. To determine the global epidemiological profile of these viruses, we used the Dimensions Database, which contains more than 100 million publications. In general, we identified 327 studies published from 1957 to 2020 for Mayaro virus, and 152 studies published from 1961 to 2020 for Oropouche orthobunyavirus. Interestingly, we observed that Mayaro and Oropouche had a significant increase in the number of publications in recent years. Thus, this comprehensive review will be helpful to guide future research based on the identified knowledge gaps.
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Virginio F, Domingues V, da Silva LCG, Andrade L, Braghetto KR, Suesdek L. WingBank: A Wing Image Database of Mosquitoes. Front Ecol Evol 2021. [DOI: 10.3389/fevo.2021.660941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Mosquito-borne diseases affect millions of people and cause thousands of deaths yearly. Vaccines have been hitherto insufficient to mitigate them, which makes mosquito control the most viable approach. But vector control depends on correct species identification and geographical assignment, and the taxonomic characters of mosquitoes are often inconspicuous to non-taxonomists, which are restricted to a life stage and/or even damaged. Thus, geometric morphometry, a low cost and precise technique that has proven to be efficient for identifying subtle morphological dissimilarities, may contribute to the resolution of these types of problems. We have been applying this technique for more than 10 years and have accumulated thousands of wing images with their metadata. Therefore, the aims of this work were to develop a prototype of a platform for the storage of biological data related to wing morphometry, by means of a relational database and a web system named “WingBank.” In order to build the WingBank prototype, a multidisciplinary team performed a gathering of requirements, modeled and designed the relational database, and implemented a web platform. WingBank was designed to enforce data completeness, to ease data query, to leverage meta-studies, and to support applications of automatic identification of mosquitoes. Currently, the database of the WingBank contains data referring to 77 species belonging to 15 genera of Culicidae. From the 13,287 wing records currently cataloged in the database, 2,138 were already made available for use by third parties. As far as we know, this is the largest database of Culicidae wings of the world.
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de Castro Jacinavicius F, Bassini-Silva R, Soares JF, Virginio F, Welbourn C, Barros-Battesti DM. Description of Leptus (Leptus) haitlingeri n. sp. (Trombidiformes: Erythraeidae), parasitising horse flies (Diptera: Tabanidae), and a key to the larvae of Leptus spp. in Brazil. Syst Parasitol 2019; 96:723-734. [PMID: 31502195 DOI: 10.1007/s11230-019-09878-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 08/10/2019] [Indexed: 11/27/2022]
Abstract
The genus Leptus Latreille, 1796 (Trombidiformes: Erythraeidae) is represented by more than 250 species worldwide, and the larval stages of these mites are ectoparasites of many arthropod orders. In Brazil, there are 12 species of Leptus, some of which have been reported parasitising representatives of the orders Opiliones, Araneae, Coleoptera, Heteroptera, Hymenoptera and Diptera. This paper describes Leptus (Leptus) haitlingeri n. sp. collected from horse flies (Diptera: Tabanidae) in the state of Sao Paulo, Brazil. The new species is distinguished from L. (L.) adaminae Haitlinger, 2004 and L. (L.) fozicus Haitlinger, 2004 by the presence of 4 branched setae on palptarsus (vs 2 branched setae). A key to the larvae of Leptus spp. in Brazil is provided.
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Affiliation(s)
| | - Ricardo Bassini-Silva
- Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, São Paulo, SP, Brazil
| | - João Fábio Soares
- Departamento de Patologia e Clínica Veterinária, UFRGS, Porto Alegre, RS, Brazil
| | - Flávia Virginio
- Laboratório Especial de Coleções Zoológicas, Instituto Butantan, São Paulo, SP, Brazil
| | - Cal Welbourn
- Florida State Collection of Arthropods, Florida Department of Agriculture and Consumer Services, Gainesville, FL, USA
| | - Darci Moraes Barros-Battesti
- Departamento de Patologia Veterinária, Faculdade de Ciências Agrárias e Veterinárias-UNESP, Jaboticabal, SP, Brazil
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Aguiar BS, Lorenz C, Virginio F, Suesdek L, Chiaravalloti-Neto F. Potential risks of Zika and chikungunya outbreaks in Brazil: A modeling study. Int J Infect Dis 2018; 70:20-29. [PMID: 29454041 DOI: 10.1016/j.ijid.2018.02.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 01/05/2018] [Accepted: 02/08/2018] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVES While Brazil has witnessed an unprecedented Zika (ZIK) epidemic, chikungunya (CHIK) has also recently come into prominence as a threat in the Americas. The aim of this study was to identify the regions with increased probabilities of ZIK and CHIK occurrence, based on environmental and social conditions. METHODS A statistical Maxent model was used to assess the potential spatial risk of ZIK and CHIK dissemination; this considered the number of probable autochthonous ZIK and CHIK cases in 2015 and 2016, along with environmental variables and social indicators. RESULTS Land use was the most significant variable that best defined the distribution of ZIK and CHIK. Of the social variables, garbage destination, type of sanitary installation, and pipe-borne water were the most significant. An estimated 65 million people in Brazil live in areas at high risk of ZIK and 75 million people in areas at high risk of CHIK. The southeast and northeast regions of Brazil presented the largest areas of high risk for both ZIK and CHIK. CONCLUSIONS Many areas across the Brazilian territory are exposed to ZIK or CHIK infection risks, which are related mainly to land use. The study findings offer valuable information to support time-sensitive public health decision-making at the local and national levels.
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Affiliation(s)
- Breno S Aguiar
- Departamento de Epidemiologia, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo, Brazil
| | - Camila Lorenz
- Laboratório de Parasitologia, Instituto Butantan, São Paulo, Brazil; Departamento de Parasitologia, Programa de Pós-Graduação Biologia da Relação Patógeno-Hospedeiro, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
| | - Flávia Virginio
- Laboratório de Parasitologia, Instituto Butantan, São Paulo, Brazil; Departamento de Parasitologia, Programa de Pós-Graduação Biologia da Relação Patógeno-Hospedeiro, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil.
| | - Lincoln Suesdek
- Laboratório de Parasitologia, Instituto Butantan, São Paulo, Brazil; Departamento de Parasitologia, Programa de Pós-Graduação Biologia da Relação Patógeno-Hospedeiro, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil; Instituto de Medicina Tropical, Universidade de São Paulo, São Paulo, Brazil
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Abstract
Morphology of male genitalia of culicids is generally species-specific and often used as a taxonomic marker. However, some characters of the male genitalia vary intraspecifically and are not taxonomically diagnostic. This might be the case of Aedes scapularis, a Neotropical culicid with vector competence for arboviruses and filarial worms. Males of this species may or not present a retrorse process (RP) in the genitalic claspette filaments, which led authors to suspect that this variance might be indicative of population divergence or incipient speciation process. This suspicion has not been investigated hitherto and it is not known if there are variable patterns of RPs. We hypothesized that the presence of the RP varies intraspecifically in Ae. scapularis and then we statistically evaluated the variability of this character in a single population. To this study the genitalia of 73 males of Ae. scapularis were prepared, and their RPs were meristically quantified and categorized according to the phenotypes observed. We noted that the presence or RPs is a polymorphic character because it varied inter and intra-individually. The presence of a single RP on each claspette filament was the predominant pattern (77%), but absent or multiple RPs in each filament were also found either in bilateral symmetry or asymmetry. Thus, we conclude that the presence of RPs owing to its high variability is not indicative of populational divergence or diagnostic of species complex within Ae. scapularis.
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Affiliation(s)
- V Petersen
- Laboratório de Parasitologia,Instituto Butantan,Av. Vital Brazil - 1500,São Paulo,SP 05503-000,Brazil
| | - F Virginio
- Laboratório de Parasitologia,Instituto Butantan,Av. Vital Brazil - 1500,São Paulo,SP 05503-000,Brazil
| | - L Suesdek
- Laboratório de Parasitologia,Instituto Butantan,Av. Vital Brazil - 1500,São Paulo,SP 05503-000,Brazil
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Lorenz C, Almeida F, Almeida-Lopes F, Louise C, Pereira SN, Petersen V, Vidal PO, Virginio F, Suesdek L. Geometric morphometrics in mosquitoes: What has been measured? Infection, Genetics and Evolution 2017; 54:205-215. [DOI: 10.1016/j.meegid.2017.06.029] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 06/26/2017] [Accepted: 06/28/2017] [Indexed: 01/20/2023]
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Lorenz C, Virginio F, Aguiar BS, Suesdek L, Chiaravalloti-Neto F. Spatial and temporal epidemiology of malaria in extra-Amazonian regions of Brazil. Malar J 2015; 14:408. [PMID: 26466889 PMCID: PMC4607178 DOI: 10.1186/s12936-015-0934-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Accepted: 10/07/2015] [Indexed: 12/18/2022] Open
Abstract
Background Mosquitoes, Plasmodium parasites, and humans live in sympatry in some extra-Amazonian regions of Brazil. Recent migrations of people from Amazonia and other countries to extra-Amazonian regions have led to many malaria outbreaks. Lack of relevant expertise among health professionals in non-endemic areas can lead to a neglect of the disease, which can be dangerous given its high fatality rate. Therefore, understanding the spatial and temporal epidemiology of malaria is essential for developing strategies for disease control and elimination. This study aimed to characterize imported (IMP) and autochthonous/introduced (AU/IN) cases in the extra-Amazonian regions and identify risk areas and groups. Methods Epidemiological data collected between 2007 and 2014 were obtained from the Notifiable Diseases Information System of the Ministry of Health (SINAN) and from the Department of the Unified Health System (DATASUS). High malaria risk areas were determined using the Local Indicator of Spatial Association. IMP and AU/IN malaria incidence rates were corrected by Local Empirical Bayesian rates. Results A total of 6092 malaria cases (IMP: 5416, 88.9 %; AU/IN: 676, 11.1 %) was recorded in the extra-Amazonian regions in 2007–2014. The highest numbers of IMP and AU/IN cases were registered in 2007 (n = 862) and 2010 (n = 149), respectively. IMP cases were more frequent than AU/IN cases in all states except for Espírito Santo. Piauí, Espírito Santo, and Paraná states had high incidences of AU/IN malaria. The majority of infections were by Plasmodium falciparum in northeast and southeast regions, while Plasmodium vivax was the predominant species in the south and mid-west showed cases of dual infection. AU/IN malaria cases were concentrated in the coastal region of Brazil, which contains the Atlantic Forest and hosts the Anopheles transmitters. Several malaria clusters were also associated with the Brazilian Pantanal biome and regions bordering the Amazonian biome. Conclusion Malaria is widespread outside the Amazonian region of Brazil, including in more urbanized and industrialized states. This fact is concerning because these highly populated areas retain favourable conditions for spreading of the parasites and vectors. Control measures for both IMP and AU/IN malaria are essential in these high-risk areas. Electronic supplementary material The online version of this article (doi:10.1186/s12936-015-0934-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Camila Lorenz
- Instituto Butantan, Avenida Vital Brasil, 1500, São Paulo, CEP 05509-300, Brazil. .,Biologia da Relação Patógeno-Hospedeiro-Instituto de Ciências Biomédicas-USP, São Paulo, Brazil.
| | - Flávia Virginio
- Instituto Butantan, Avenida Vital Brasil, 1500, São Paulo, CEP 05509-300, Brazil. .,Biologia da Relação Patógeno-Hospedeiro-Instituto de Ciências Biomédicas-USP, São Paulo, Brazil.
| | - Breno S Aguiar
- Departamento de Epidemiologia, Faculdade de Saúde Pública, Universidade de São Paulo, Av Dr Arnaldo, 715, São Paulo, CEP 05509-300, Brazil.
| | - Lincoln Suesdek
- Instituto Butantan, Avenida Vital Brasil, 1500, São Paulo, CEP 05509-300, Brazil. .,Biologia da Relação Patógeno-Hospedeiro-Instituto de Ciências Biomédicas-USP, São Paulo, Brazil. .,Instituto de Medicina Tropical, Avenida Dr Enéas Carvalho de Aguiar, 470, São Paulo, CEP 05403-000, Brazil.
| | - Francisco Chiaravalloti-Neto
- Departamento de Epidemiologia, Faculdade de Saúde Pública, Universidade de São Paulo, Av Dr Arnaldo, 715, São Paulo, CEP 05509-300, Brazil.
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