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Olsson Freitas Silva S, Ferreira de Mello C, Figueiró R, Carbajal-de-la-Fuente AL, Dias R, Alencar J. Long-Term Trends in Mosquito Vector Populations and their Impact on Yellow Fever Outbreaks in Atlantic Forest Fragments of Rio De Janeiro, Brazil (2016-2021). J Am Mosq Control Assoc 2024:500495. [PMID: 38697617 DOI: 10.2987/23-7163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
Among all living beings, mosquitoes account for the highest number of human fatalities. Our study aimed to determine mosquito egg abundance fluctuation from 2015 to 2020, in order to observe which years had the highest mosquito vector densities and whether they coincided with yellow fever virus outbreaks in both human and nonhuman primates. The study area included Atlantic Forest fragments in the state of Rio de Janeiro. Studies from the Diptera Laboratory at FIOCRUZ were selected and compared along a timeline period of the field collections. The highest peak in egg abundance from the analyzed studies was observed from 2016 to 2017 and from 2015 to 2016. The lowest egg abundance was during the collection periods from 2018 to 2019 and 2019 to 2020. The species with the highest abundance throughout all the periods of the studies analyzed was Haemagogus leucocelaenus, representing 87% of all epidemiological species identified. The species with the lowest abundance was Hg. Janthinomys, representing only 1%. Monitoring the population of mosquitoes is imperative for disease surveillance, as the rise in specimens of various vector species directly impacts the occurrence of yellow fever cases in both nonhuman primates and human populations.
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Nunes MDP, Azevedo WTDA, da Silva AS, Lessa CSDS, Alencar J, Aguiar VM. Faunistic Analysis of Calliphoridae and Mesembrinellidae (Diptera: Oestroidea) at Different Stages of Bovine Liver Decomposition in the State of Rio de Janeiro. Life (Basel) 2023; 13:1914. [PMID: 37763317 PMCID: PMC10532495 DOI: 10.3390/life13091914] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/05/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
Performing quantitative sampling and determining faunistic analyses of dipterans is of fundamental importance in the analysis of ecological behavior, such as population dynamics and diversity, among other factors, for exotic and native species of necrophagous dipterans, so it is important to observe the type of bait used in traps to capture these dipteran species. This work aims to study structural parameters and faunistic indices of the diversity of Calliphoridae and Mesembrinellidae species as well as the abundance and diversity of species attracted to liver in two stages of decomposition: fresh liver and liver at 48 h of putrefaction. A total of 2826 dipterans were collected during the period from May 2021 to February 2022. We observed that liver in decomposition for 48 h was more attractive in the forest and rural environments, while fresh liver showed greater attractiveness in the urban environment; however, no statistical difference was evidenced between the attractiveness in the different environments. The Mesembrinellidae family and the species Lucilia eximia (Wiedemann, 1819) were collected mostly from deteriorated liver, while Cochliomyia macellaria (Fabricius, 1775) showed no preference for any liver decomposition stage. The Wilcoxon test indicated that there is a significant difference between the preferences for putrefied bait in Mesembrinellidae, while in Calliphoridae, there was no preference for type of bait. The faunistic analysis showed that richness in the forest area was always higher when compared to the urban and rural areas. Laneela nigripes (Guimarães, 1977) and Mesembrinella bellardiana (Aldrich, 1922) were abundant and exclusive in the preserved environment, showing themselves to be good environmental bioindicators.
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Affiliation(s)
- Mariana dos Passos Nunes
- Departamento de Microbiologia e Parasitologia, Instituto Biomédico, Centro de Ciências Biológicas e da Saúde, Universidade Federal do Estado do Rio de Janeiro, Rua Frei Caneca, 94, Centro, Rio de Janeiro 20211-040, Brazil; (M.d.P.N.); (W.T.d.A.A.); (C.S.d.S.L.); (V.M.A.)
- Programa de Pós-Graduação em Ciências Biológicas: Biodiversidade Neotropical, Instituto de Biociências, Universidade Federal do Estado do Rio de Janeiro, Avenida Pasteur, 458, Urca, Rio de Janeiro 22290-240, Brazil
| | - Wellington Thadeu de Alcantara Azevedo
- Departamento de Microbiologia e Parasitologia, Instituto Biomédico, Centro de Ciências Biológicas e da Saúde, Universidade Federal do Estado do Rio de Janeiro, Rua Frei Caneca, 94, Centro, Rio de Janeiro 20211-040, Brazil; (M.d.P.N.); (W.T.d.A.A.); (C.S.d.S.L.); (V.M.A.)
- Programa de Pós-Graduação em Biologia Animal, Instituto de Biologia e Ciências da Saúde, Universidade Federal Rural do Rio de Janeiro, Estrada Rio-São Paulo, Seropédica 23890-000, Brazil
| | - Alexandre Sousa da Silva
- Departamento de Matemática e Estatística, Instituto de Biociências, Centro de Ciências Biológicas e da Saúde, Universidade Federal do Estado do Rio de Janeiro, Avenida Pasteur, 458, Urca, Rio de Janeiro 22290-240, Brazil;
| | - Cláudia Soares dos Santos Lessa
- Departamento de Microbiologia e Parasitologia, Instituto Biomédico, Centro de Ciências Biológicas e da Saúde, Universidade Federal do Estado do Rio de Janeiro, Rua Frei Caneca, 94, Centro, Rio de Janeiro 20211-040, Brazil; (M.d.P.N.); (W.T.d.A.A.); (C.S.d.S.L.); (V.M.A.)
| | - Jeronimo Alencar
- Programa de Pós-Graduação em Biologia Animal, Instituto de Biologia e Ciências da Saúde, Universidade Federal Rural do Rio de Janeiro, Estrada Rio-São Paulo, Seropédica 23890-000, Brazil
- Laboratório de Diptera, Fundação Oswaldo Cruz, Avenida Brasil, 4365, Rio de Janeiro 21040-360, Brazil
| | - Valéria Magalhães Aguiar
- Departamento de Microbiologia e Parasitologia, Instituto Biomédico, Centro de Ciências Biológicas e da Saúde, Universidade Federal do Estado do Rio de Janeiro, Rua Frei Caneca, 94, Centro, Rio de Janeiro 20211-040, Brazil; (M.d.P.N.); (W.T.d.A.A.); (C.S.d.S.L.); (V.M.A.)
- Programa de Pós-Graduação em Ciências Biológicas: Biodiversidade Neotropical, Instituto de Biociências, Universidade Federal do Estado do Rio de Janeiro, Avenida Pasteur, 458, Urca, Rio de Janeiro 22290-240, Brazil
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Machado SL, de Mello CF, Silva SOF, Alencar J. Ecobiology of Haemagogus leucocelaenus arbovirus vector in the golden lion tamarin translocation area of Rio de Janeiro, Brazil. Sci Rep 2023; 13:13129. [PMID: 37573396 PMCID: PMC10423267 DOI: 10.1038/s41598-023-39629-x] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 07/27/2023] [Indexed: 08/14/2023] Open
Abstract
Significant pathogens that have resurfaced in humans originate from transmission from animal to human populations. In the Americas, yellow fever cases in humans are usually associated with spillover from non-human primates via mosquitoes. The present study characterized the prevalence of the yellow fever vector Haemagogus leucocelaenus in Rio de Janeiro, Brazil. The Atlantic Forest fragment chosen is an area of translocation of the golden lion tamarin (Leontopithecus rosalia), where 10 ovitraps were installed to collect mosquito eggs in Fazenda Três Irmãos, at Silva Jardim city, from March 2020 to October 2022. A total of 1514 eggs were collected, of which 1153 were viable; 50% belonged to medically important mosquito species and 24% to the yellow fever vector species, Hg. leucocelaenus. The months of December 2020 (n = 252), November 2021 (n = 188), and January 2022 (n = 252) had the highest densities of this vector. Haemagogus leucocelaenus was positively correlated with temperature (r = 0.303) and humidity (r = 0.48), with eggs hatching up to the 15th immersion with higher abundance of females. Implementing mosquito monitoring for arbovirus activity can help protect both the golden lion tamarin and human populations from the threat of arbovirus transmission.
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Affiliation(s)
- Sergio Lisboa Machado
- Laboratory of Molecular Diagnosis and Hematology, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-901, Brazil
- Graduate Program in Animal Biology, Instituto de Biologia, Universidade Federal Rural do Rio de Janeiro, Seropédica, 23890-000, Brazil
| | | | | | - Jeronimo Alencar
- Diptera Laboratory, Instituto Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, 21040-360, Brazil.
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Nunes MDP, Azevedo WTDA, da Silva AS, Lessa CSDS, Alencar J, Aguiar VM. Synanthropy and ecological aspects of Calliphoridae and Mesembrinellidae (Diptera: Oestroidea) in three ecological areas in Rio de Janeiro State, Brazil. PLoS One 2023; 18:e0285844. [PMID: 37285348 DOI: 10.1371/journal.pone.0285844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 05/02/2023] [Indexed: 06/09/2023] Open
Abstract
The determination of the synanthropic index is essential to evaluate the degree of association between species, such as diptera and man, based solely on their degree of preference for urban areas. This research aimed to study the synanthropic behavior of Calliphoridae and Mesembrinellidae flies in Rio de Janeiro, Brazil. The experiment was conducted between 2021 and 2022 in three areas, where four traps containing 300 g of fresh liver or with 48 h of putrefaction were installed, remaining exposed for 48 h; after collection the dipterans were sacrificed and taxonomically identified. A total of 2,826 dipterans were collected, represented by nine species of Calliphoridae (89.24%) and ten of Mesembrinellidae (10.76%), with the first record of Mesembrinella currani in this biome. The Kruskal-Wallis test showed that the abundance of individuals did not differ among the three analyzed environments. The Mesembrinellidae family was exclusively asynanthrope, along with two species of Calliphoridae: Hemilucilia benoisti (Séguy 1925) and Paralucilia nigrofacialis (Mello 1969) which were exclusive of the forest area, while Calliphoridae had varied synanthropy. Lucilia eximia (Wiedemann 1819) alone represented 57.18% of the total sampled, being the most abundant in all environments except the urban area where Hemilucilia segmentaria (Fabricius 1805) totaled 55.73%. No species were exclusive to the urban area, however Cochliomyia hominivorax (Coquerel 1858) and Lucilia cuprina (Wiedemann 1830) were exclusive to the rural area. The most synanthropic species were Chrysomya megacephala (Fabricius 1794) and Chrysomya albiceps (Wiedemann 1819).
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Affiliation(s)
- Mariana Dos Passos Nunes
- Departamento de Microbiologia e Parasitologia, Instituto Biomédico, Centro de Ciências Biológicas e da Saúde, Universidade Federal do Estado do Rio de Janeiro, Seropedica, Rio de Janeiro, Brazil
| | - Wellington Thadeu de Alcantara Azevedo
- Departamento de Microbiologia e Parasitologia, Instituto Biomédico, Centro de Ciências Biológicas e da Saúde, Universidade Federal do Estado do Rio de Janeiro, Seropedica, Rio de Janeiro, Brazil
- Programa de Pós-Graduação Biologia Animal, Instituto de Biologia e Ciências da Saúde, Universidade Federal Rural do Rio de Janeiro, Seropedica, Brazil
| | - Alexandre Sousa da Silva
- Departamento de Matemática e Estatística, Instituto de Biociências, Centro de Ciências Biológicas e da Saúde, Universidade Federal do Estado do Rio de Janeiro, Seropedica, Brazil
| | - Cláudia Soares Dos Santos Lessa
- Departamento de Microbiologia e Parasitologia, Instituto Biomédico, Centro de Ciências Biológicas e da Saúde, Universidade Federal do Estado do Rio de Janeiro, Seropedica, Rio de Janeiro, Brazil
| | - Jeronimo Alencar
- Programa de Pós-Graduação Biologia Animal, Instituto de Biologia e Ciências da Saúde, Universidade Federal Rural do Rio de Janeiro, Seropedica, Brazil
- Laboratório de Diptera, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - Valéria Magalhães Aguiar
- Departamento de Microbiologia e Parasitologia, Instituto Biomédico, Centro de Ciências Biológicas e da Saúde, Universidade Federal do Estado do Rio de Janeiro, Seropedica, Rio de Janeiro, Brazil
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Dias R, de Mello CF, Santos GS, Carbajal-de-la-Fuente AL, Alencar J. Vertical Distribution of Oviposition and Temporal Segregation of Arbovirus Vector Mosquitoes (Diptera: Culicidae) in a Fragment of the Atlantic Forest, State of Rio de Janeiro, Brazil. Trop Med Infect Dis 2023; 8:256. [PMID: 37235304 PMCID: PMC10221014 DOI: 10.3390/tropicalmed8050256] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 04/26/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023] Open
Abstract
Culicid species, which include potential vectors of yellow fever, are diverse and abundant, with species commonly co-occurring in certain sites. Studying these species can provide important insights into their vector potential and, consequently, epizootic cycles of arboviruses carried about by these vectors. Here, we evaluated the vertical distribution and temporal segregation of mosquito oviposition with emphasis on arbovirus vectors in a fragment of the Atlantic Forest in Casimiro de Abreu, Rio de Janeiro, Brazil. Two sampling points were selected: Fazenda Três Montes and the Reserva Natural de Propriedade Privada Morro Grande. Collections were carried out at two sites using 10 ovitraps installed on the vegetation cover at different heights (0, 2, 4, 6, and 8 m above ground level) and monitored monthly from July 2018 to December 2020. The hypotheses of temporal and vertical stratification were tested through a PERMANOVA, and the relationship of each species with the vertical distribution was evaluated individually through a correlation analysis. We collected a total of 3075 eggs, including four species of medical importance: Haemagogus leucocelaenus (n = 1513), Haemagogus janthinomys (n = 16), Aedes albopictus (n = 1097), and Aedes terrens (n = 449). We found that Hg. leucocelaenus had a positive relationship with height, exhibiting behavior that appears to benefit from higher heights. The abundance of Ae. terrens seemed to follow Hg. leucocelaenus, although we did not find a relationship with height for the former species. On the other hand, Ae. albopictus exhibited a negative relationship with height, becoming absent or outnumbered at higher strata. Our study site has already presented evidence of recent transmission of the wild yellow fever virus, supporting the need to carefully monitor the emergence of febrile diseases among residents in the surrounding areas and the local population.
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Affiliation(s)
- Rayane Dias
- Laboratório Diptera, Instituto Oswaldo Cruz (FIOCRUZ), Avenida Brasil 4365, Manguinhos, Rio de Janeiro 21040-360, RJ, Brazil
- Programa de Pós-graduação em Medicina Tropical, Instituto Oswaldo Cruz (FIOCRUZ), Avenida Brasil 4365, Manguinhos, Rio de Janeiro 21040-360, RJ, Brazil
| | - Cecilia Ferreira de Mello
- Laboratório Diptera, Instituto Oswaldo Cruz (FIOCRUZ), Avenida Brasil 4365, Manguinhos, Rio de Janeiro 21040-360, RJ, Brazil
| | - Gabriel Silva Santos
- Instituto Nacional da Mata Atlântica—INMA, Avenida José Ruschi, 4-Centro, Santa Teresa 29650-000, ES, Brazil
| | - Ana Laura Carbajal-de-la-Fuente
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires C1063 CABA, Argentina
- Centro Nacional de Diagnóstico e Investigación en Endemo-Epidemias (CeNDIE), Administración Nacional de Laboratorios e Institutos de Salud “Dr. Carlos Malbrán” (ANLIS), Av. Paseo Colón 568, Buenos Aires C1063 CABA, Argentina
| | - Jeronimo Alencar
- Laboratório Diptera, Instituto Oswaldo Cruz (FIOCRUZ), Avenida Brasil 4365, Manguinhos, Rio de Janeiro 21040-360, RJ, Brazil
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Alencar J, Ferreira de Mello C, Silva SOF, Guimarães AÉ, Müller GA. Effects of seasonality on the oviposition activity of potential vector mosquitoes (Diptera: Culicidae) from the São João River Basin Environmental Protection Area of the state of Rio de Janeiro, Brazil. The European Zoological Journal 2022. [DOI: 10.1080/24750263.2022.2108513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022] Open
Affiliation(s)
- J. Alencar
- Diptera Laboratory, Oswaldo Cruz Institute (FIOCRUZ), Rio de Janeiro, Brazil
| | - C. Ferreira de Mello
- Diptera Laboratory, Oswaldo Cruz Institute (FIOCRUZ), Rio de Janeiro, Brazil
- Graduate Program in Animal Biology, Institute of Biology, Federal Rural University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - S. O. F. Silva
- Diptera Laboratory, Oswaldo Cruz Institute (FIOCRUZ), Rio de Janeiro, Brazil
- Graduate Program in Tropical Medicine, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro, Brazil
| | - A. É. Guimarães
- Diptera Laboratory, Oswaldo Cruz Institute (FIOCRUZ), Rio de Janeiro, Brazil
| | - G. A. Müller
- Instituto Federal de Educação, Ciência e Tecnologia Farroupilha, Panambi, RS, Brazil
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Silva SOF, de Mello CF, Julião GR, Dias R, Alencar J. Sexual Proportion and Egg Hatching of Vector Mosquitos in an Atlantic Forest Fragment in Rio de Janeiro, Brazil. Life (Basel) 2022; 13:life13010013. [PMID: 36675962 PMCID: PMC9912254 DOI: 10.3390/life13010013] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/16/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022]
Abstract
Some Aedinii mosquitoes are of high importance in the transmission of the sylvatic YFV. Usually, their eggs are very resistant and depend on the rain for their hatching. The present study evaluated the effect of multiple mosquito-egg immersions and the sex ratio of male and female specimens from Atlantic Forest remnants in the state of Rio de Janeiro, Brazil. Three sampling sites were selected in the municipality of Casimiro de Abreu, where 50 ovitraps were randomly installed to collect eggs from the ground level up to different heights, from August 2018 to December 2020. The mosquito sex ratios were compared between seasons and forest sites, using the generalized linear mixed model (GLMM), which included sampling months and trees as random effects. A total of 33,091 mosquito eggs were collected, of which 6152 eggs were already hatched (18%) and 26,939 were unhatched; of these, approximately 76% subsequently hatched. We found that 25% of the eggs corresponded to four species: Aedes albopictus (n = 1277), Ae. terrens (n = 793), Haemagogus janthinomys (n = 89), and Hg. leucocelaenus (n = 3033). The sex ratio (male:female) was variable concerning the sampling sites and the season. For most species, GLMM estimates found no difference in the variation of the average sex ratio as a function of these predictors, and there was no evidence of temporal autocorrelation in the mosquito data. The number of immersions necessary for hatching the eggs differed between mosquito species, and eggs collected in the dry season hatched both in the first immersions and the subsequent events. Co-occurrence of Aedes terrens and Hg. leucocelaenus was the most frequently observed pairwise species combination. Considering recurrent arbovirus outbreaks in Brazil and their burden on the human population, our study helps to shed light on how these vectors behave in nature; therefore, they can be used in surveillance programs.
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Affiliation(s)
- Shayenne Olsson Freitas Silva
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Avenida Brasil 4365, Manguinhos, Rio de Janeiro 21040-360, RJ, Brazil
- Postgraduate Program in Tropical Medicine, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro 21040-360, RJ, Brazil
| | - Cecilia Ferreira de Mello
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Avenida Brasil 4365, Manguinhos, Rio de Janeiro 21040-360, RJ, Brazil
| | - Genimar Rebouças Julião
- Laboratory of Entomology I, Fiocruz Rondônia, Rua da Beira 7671, Lagoa, Porto Velho 76812-245, RO, Brazil
- National Institute of Epidemiology of the Western Amazon—INCT EpiAmO—Fiocruz Rondônia, Rua da Beira 7671, Lagoa, Porto Velho 76812-245, RO, Brazil
| | - Rayane Dias
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Avenida Brasil 4365, Manguinhos, Rio de Janeiro 21040-360, RJ, Brazil
- Postgraduate Program in Tropical Medicine, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro 21040-360, RJ, Brazil
| | - Jeronimo Alencar
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Avenida Brasil 4365, Manguinhos, Rio de Janeiro 21040-360, RJ, Brazil
- Correspondence:
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de Miranda RM, Ferreira-de-Brito A, Silva JDS, Xavier ADS, Freitas Silva SO, Alencar J, Lourenço-de-Oliveira R. Mosquito Fauna and Spatial Distribution in an Atlantic Forest Area in Rio de Janeiro State, Brazil, Reveal a High Risk of Transmission of Yellow Fever and Other Arboviruses. Trop Med Infect Dis 2022; 7:tropicalmed7120410. [PMID: 36548665 PMCID: PMC9786010 DOI: 10.3390/tropicalmed7120410] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 11/20/2022] [Accepted: 11/25/2022] [Indexed: 12/05/2022] Open
Abstract
In 2017-2019, Brazil recorded its most severe outbreak of yellow fever due to the spread of the virus (YFV) in the country's southeast. Here, we investigated mosquito fauna and the spatial distribution of species in a primatology center in the Atlantic Forest bioregion in Rio de Janeiro state to evaluate the risk of YFV transmission in distinct environments. Fortnightly mosquito collections were performed from December 2018 to December 2019 at 12 sites along a disturbance gradient from a modified environment to 400 m inside the forest. We used ovitraps, BG-Sentinel, and protected human attraction (PHA). A total of 9349 mosquitoes of 21 species were collected. The collection method strongly influenced the captured fauna, with species such as Anopheles cruzii, Psorophora ferox, Runchomyia cerqueirai, Wyeomyia incaudata, Wy. theobaldi, Sabethes chloropterus, and Sa. albiprivus only collected via PHA. Collections with ovitraps resulted in low diversity and richness, with Haemagogus leucocelaenus and Hg. janthinomys/capricornii predominating. The diverse local fauna and the abundance and ubiquity of the latter species, which are the primary vectors of YFV, indicated that this area was highly vulnerable to arbovirus transmission, especially yellow fever, highlighting the need for improved surveillance and vaccination coverage in human and captive endangered non-human primates.
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Affiliation(s)
- Rafaella Moraes de Miranda
- Laboratório de Mosquitos Transmissores de Hematozoário, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil
- Laboratório de Diptera, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil
| | - Anielly Ferreira-de-Brito
- Laboratório de Mosquitos Transmissores de Hematozoário, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil
| | - Júlia dos Santos Silva
- Laboratório de Diptera, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil
| | - Alexandre da Silva Xavier
- Laboratório de Mosquitos Transmissores de Hematozoário, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil
| | | | - Jeronimo Alencar
- Laboratório de Diptera, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil
- Correspondence: (J.A.); (R.L.-d.-O.)
| | - Ricardo Lourenço-de-Oliveira
- Laboratório de Mosquitos Transmissores de Hematozoário, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil
- Correspondence: (J.A.); (R.L.-d.-O.)
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Silva SOF, de Mello CF, Érico Guimarães A, José Leite P, Alencar J. Occurrence of the Sylvatic Yellow Fever Vector Mosquito Haemagogus leucocelaenus (Diptera: Culicidae) in an Atlantic Forest Fragment of the Touristic State of Rio de Janeiro, Brazil. J Med Entomol 2022; 59:1891-1897. [PMID: 36239293 DOI: 10.1093/jme/tjac153] [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] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Indexed: 06/16/2023]
Abstract
The yellow fever virus is estimated to cause 30,000 deaths each year worldwide, with the majority of cases and deaths occurring in Africa. The virus is also endemic to Central and South America, including northern and western Brazil. The sylvatic cycle of the virus is related to wild and rural areas, with nonhuman primates as the primary host and wild mosquitoes, specifically from the genera Haemagogus, as vectors. The diversity of the mosquito community plays a significant role in the increase of pathogen transmission to humans. In the present study, we detected fluctuation in populations of vector mosquitoes using ovitraps for Culicidae egg collection. The study area is a forest fragment of the Atlantic Forest, one of the most threatened biomes in Brazil. This biome has been suffering significant deforestation due to anthropic activity. Worryingly, the proximity of human populations to forest environments increases the risk of spreading disease from forest fragments to urban areas. Our findings showed that the highest egg abundance occurred in December 2019, with a significant difference (p = 0.005) between rainy and dry seasons. Most eggs were collected during the rainy period. Subsequent quantification of specimens from epidemiologically relevant species hatched from field-collected eggs resulted in 1,131 (86%) Haemagogus leucocelaenus (Dyar & Shannon, 1924), 111 (8%) Aedes terrens (Walker, 1856), 47 (4%) Aedes albopictus (Skuse, 1894), and 21 (2%) Haemagogus janthinomys (Dyar, 1921). Finally, we assessed the behavior of different vector species performing oviposition on the same breeding site. The highest correlation coefficient was observed between Ae. albopictus and Ae. terrens (rho = 0.52) concerning other Culicidae species. Therefore, we believe that Culicidae population surveillance is crucial for disease monitoring since the increase in specimens of a number of vector species influences the emergence of yellow fever cases in nonhuman primates and human populations.
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Affiliation(s)
- Shayenne Olsson Freitas Silva
- Diptera Laboratory, Oswaldo Cruz Institute (FIOCRUZ), Avenue Brazil 4365, 21040-360 Manguinhos, Rio de Janeiro, Brazil
- Graduate Program in Tropical Medicine, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro, Brazil
| | - Cecilia Ferreira de Mello
- Diptera Laboratory, Oswaldo Cruz Institute (FIOCRUZ), Avenue Brazil 4365, 21040-360 Manguinhos, Rio de Janeiro, Brazil
- Graduate Program in Animal Biology, Institute of Biology, Federal Rural University of Rio de Janeiro, 23890-000 Seropédica, Rio de Janeiro, Brazil
| | - Anthony Érico Guimarães
- Diptera Laboratory, Oswaldo Cruz Institute (FIOCRUZ), Avenue Brazil 4365, 21040-360 Manguinhos, Rio de Janeiro, Brazil
| | - Paulo José Leite
- Diptera Laboratory, Oswaldo Cruz Institute (FIOCRUZ), Avenue Brazil 4365, 21040-360 Manguinhos, Rio de Janeiro, Brazil
| | - Jeronimo Alencar
- Diptera Laboratory, Oswaldo Cruz Institute (FIOCRUZ), Avenue Brazil 4365, 21040-360 Manguinhos, Rio de Janeiro, Brazil
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de Mello CF, Figueiró R, Roque RA, Maia DA, da Costa Ferreira V, Guimarães AÉ, Alencar J. Spatial distribution and interactions between mosquitoes (Diptera: Culicidae) and climatic factors in the Amazon, with emphasis on the tribe Mansoniini. Sci Rep 2022; 12:16214. [PMID: 36171406 PMCID: PMC9519922 DOI: 10.1038/s41598-022-20637-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 06/18/2022] [Accepted: 09/15/2022] [Indexed: 11/09/2022] Open
Abstract
This work aimed to evaluate the spatial distribution of mosquitoes in different seasonal periods and the interaction between climatic factors and the abundance of mosquitoes, especially those belonging to the tribe Mansoniini in the area surrounding the Amazon hydroelectric production region (Jirau-HP) of Rondônia state, Brazil. Mosquito specimens were collected in May, July, October, and December 2018, and April, July, September, and November 2019, over periods of three alternating days during the hours of 6:00 p.m. to 8:00 p.m. Mosquito sampling was performed using automatic CDC and Shannon light traps. Canonical correspondence analysis (CCA), combined with Monte Carlo permutations, was used to evaluate the correlation between climatic variables and species distribution. In addition, non-metric multidimensional scaling (NMDS) was used to verify the similarity among the sampled communities from the different collections. After analyzing the total mosquito fauna at all sampling points, 46,564 specimens were identified, with Mansonia dyari showing the highest relative abundance in 2018 (35.9%). In contrast, Mansonia titillans had the highest relative abundance in 2019 (25.34%), followed by Mansonia iguassuensis (24.26%). The CCA showed that maximum temperature significantly influenced the distribution of mosquito populations in the study area (p = 0.0406). The NMDS showed that sampling carried out in the rainy and dry seasons formed two distinct groups. There was a significant correlation between species richness and cumulative precipitation 15 days before the sampling period (R2 = 58.39%; p = 0.0272). Thus, both temperature and precipitation affected mosquito population dynamics. The effect of rainfall on mosquito communities may be due to variations in habitat availability for immature forms.
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Affiliation(s)
- Cecilia Ferreira de Mello
- Laboratório de Diptera, Instituto Oswaldo Cruz, FIOCRUZ, Avenida Brasil, n. 4365, Manguinhos, Rio de Janeiro, RJ, CEP 21040-360, Brazil.,Programa de Pós-Graduação em Biologia Animal, UFRRJ, Rd BR 465, Km 7, Seropédica, RJ, CEP 23897-000, Brazil
| | - Ronaldo Figueiró
- Departamento de Biologia, Faculdade de Ciências Biológicas e Saúde, Universidade do Estado do Rio de Janeiro, Avenida Manuel Caldeira de Alvarenga, 1203, Campo Grande, Rio de Janeiro, RJ, CEP 23070-200, Brazil
| | - Rosemary Aparecida Roque
- Instituto Nacional de Pesquisas da Amazônia, INPA, Avenida André Araújo, n. 2936, Petrópolis, Manaus, Amazonas, CEP 69067-375, Brazil
| | - Daniele Aguiar Maia
- Laboratório de Diptera, Instituto Oswaldo Cruz, FIOCRUZ, Avenida Brasil, n. 4365, Manguinhos, Rio de Janeiro, RJ, CEP 21040-360, Brazil
| | - Vânia da Costa Ferreira
- Energia Sustentável do Brasil, ESBR, Rodovia BR- 364, KM 824 S/N, Distrito de Jaci Paraná, Porto Velho, Rondônia, 76840-000, Brazil
| | - Anthony Érico Guimarães
- Laboratório de Diptera, Instituto Oswaldo Cruz, FIOCRUZ, Avenida Brasil, n. 4365, Manguinhos, Rio de Janeiro, RJ, CEP 21040-360, Brazil
| | - Jeronimo Alencar
- Laboratório de Diptera, Instituto Oswaldo Cruz, FIOCRUZ, Avenida Brasil, n. 4365, Manguinhos, Rio de Janeiro, RJ, CEP 21040-360, Brazil.
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Cano ME, Marti GA, Alencar J, Silva SOF, Micieli MV. Categorization by Score of Mosquito Species (Diptera: Culicidae) Related to Yellow Fever Epizootics in Argentina. J Med Entomol 2022; 59:1766-1777. [PMID: 35820022 DOI: 10.1093/jme/tjac079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Indexed: 06/15/2023]
Abstract
The mosquito-borne yellow fever virus (YFV) is the cause of a zoonotic disease, with both sylvatic and urban cycles. Some mosquito species have been associated directly with transmission of the virus in South America, although the importance given to each species varies depending on the bibliography, geographical location, or year of publication. For Argentina, few publications have assessed the involvement of mosquito species, especially those included in the sylvatic cycle. Therefore, the goal of our paper was to gather all the information available in South America and categorize all mosquito species potentially involved in the YFV transmission cycle in Argentina according to incriminating vector criteria. Based on three main characteristics ('Hosts', 'Mosquito vector', and 'YF outbreak'), we generated scales of importance by species, one exclusively for Argentina and another for all of South America, Sabethes albiprivus Theobald, 1903 was the most important species in Argentina; whereas the most important species in South America were Haemagogus janthinomys Dyar 1921, Hg. leucocelaenus Dyar and Shannon, 1924, and Sa. chloropterus Von Humboldt, 1819. Our review highlights the lack of research that evaluates the importance of these species for YFV transmission in Argentina, while serving as a starting point to establish priorities for research on the bionomics and vector status of these species.
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Affiliation(s)
- Maria Eugenia Cano
- Centro de Estudios Parasitológicos y de Vectores (CEPAVE-CCT-La Plata-CONICET-UNLP), Boulevard 120 e/61 y 62, 1900 La Plata, Argentina
| | - Gerardo Anibal Marti
- Centro de Estudios Parasitológicos y de Vectores (CEPAVE-CCT-La Plata-CONICET-UNLP), Boulevard 120 e/61 y 62, 1900 La Plata, Argentina
| | - Jeronimo Alencar
- Laboratório de Diptera, Instituto Oswaldo Cruz (FIOCRUZ), Av. Brasil 4365, CEP: 21040-360 Manguinhos, Rio de Janeiro, Brasil
| | - Shayenne Olsson Freitas Silva
- Laboratório de Diptera, Instituto Oswaldo Cruz (FIOCRUZ), Av. Brasil 4365, CEP: 21040-360 Manguinhos, Rio de Janeiro, Brasil
| | - Maria Victoria Micieli
- Centro de Estudios Parasitológicos y de Vectores (CEPAVE-CCT-La Plata-CONICET-UNLP), Boulevard 120 e/61 y 62, 1900 La Plata, Argentina
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12
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Müller GA, de Mello CF, Bueno AS, de Alcantara Azevedo WT, Alencar J. Little noticed, but very important: The role of breeding sites formed by bamboos in maintaining the diversity of mosquitoes (Diptera: Culicidae) in the Atlantic Forest biome. PLoS One 2022; 17:e0273774. [PMID: 36067179 PMCID: PMC9447929 DOI: 10.1371/journal.pone.0273774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 08/12/2022] [Indexed: 11/18/2022] Open
Abstract
This study investigated the composition of mosquito species in different kinds of breeding sites in a tropical forest remnant of the Atlantic Forest and identified species of public health concern therein. Collections of immature forms of mosquitoes were carried out monthly at the Poço das Antas Biological Reserve in southeastern Brazil, between June 2014 and June 2015. Samples were collected from four types of breeding sites: bamboos, bromeliads, puddles, and a lake. A total of 1,182 specimens of mosquitoes belonging to 28 species and 13 genera were collected. Three species, Ad. squamipennis, An. neglectus, and Wy. arthrostigma represented 64.8% of the captured specimens. Only three species were found in more than one type of breeding site: Ps. ferox, An. triannulatus, and Tx. trichopygus. Two species of public health concern were found breeding in bamboo (Ae. aegypti and Ae. albopictus) and one in the lake (An. darlingi). Bamboo had the highest species richness, Shannon diversity, abundance of individuals and number of dominant species of all breeding sites. Similar Simpson diversity was obtained for bamboo and bromeliads, with higher values than those obtained for puddles and the lake. The significance of the four breeding sites, especially bamboos, is discussed in the context of controlling populations of sylvatic species of mosquitoes in Atlantic Forest areas.
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Affiliation(s)
- Gerson Azulim Müller
- Instituto Federal de Educação, Ciência e Tecnologia Farroupilha, Panambi, RS, Brazil
| | - Cecilia Ferreira de Mello
- Laboratório de Diptera, Instituto Oswaldo Cruz (Fiocruz), Rio de Janeiro, RJ, Brazil
- Programa de Pós-Graduação em Biologia Animal, Instituto de Biologia (UFRRJ), Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ, Brazil
| | - Anderson S. Bueno
- Instituto Federal de Educação, Ciência e Tecnologia Farroupilha, Júlio de Castilhos, RS, Brazil
| | - Wellington Thadeu de Alcantara Azevedo
- Laboratório de Diptera, Instituto Oswaldo Cruz (Fiocruz), Rio de Janeiro, RJ, Brazil
- Programa de Pós-Graduação em Biologia Animal, Instituto de Biologia (UFRRJ), Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ, Brazil
| | - Jeronimo Alencar
- Laboratório de Diptera, Instituto Oswaldo Cruz (Fiocruz), Rio de Janeiro, RJ, Brazil
- * E-mail:
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Freitas Silva SO, de Mello CF, Machado SL, Leite PJ, Alencar J. Interaction of Haemagogus leucocelaenus (Diptera: Culicidae) and Other Mosquito Vectors in a Forested Area, Rio de Janeiro, Brazil. Trop Med Infect Dis 2022; 7:tropicalmed7060094. [PMID: 35736973 PMCID: PMC9228385 DOI: 10.3390/tropicalmed7060094] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 05/31/2022] [Accepted: 06/05/2022] [Indexed: 12/04/2022] Open
Abstract
The yellow fever (YF) virus has been detected throughout Brazil, with the occurrence of human cases, cyclic epizootics, and its isolation from Haemagogus janthinomys and Hg. leucocelaenus. We assessed the seasonal occurrence, egg abundancy, and oviposition interaction of mosquito vector species captured at a Private Natural Heritage Reserve in the Atlantic Forest biome. A total of 2943 eggs and 1538 mosquito larvae were collected from which 1231 belonged to entomologically important species. Ovitraps were used to collect immature mosquitoes from September 2019 to January 2021. The Mann–Whitney test was used to assess the differences in the abundance of eggs between rainy and dry seasons. Kruskal–Wallis and Dunn’s post hoc tests were used to evaluate the significance of the differences in the number of individuals from vector species. The highest percentage of mosquito vector eggs were collected during the rainy season, from December to February. Most eggs recovered from ovitraps belonged to the species Hg. leucocelaenus, representing 85% of all mosquito eggs identified. The other species had lower abundances and percentages: Aedes terrens (7%), Haemagogus janthinomys (5%) and Aedes albopictus (3%). The species that shared breeding sites with a higher frequency were Hg. leucocelaenus and Hg. janthinomys, with a statistically positive correlation (ρ = 0.74). This finding suggests that maybe the presence of Hg. leucocelaenus eggs acted as an attractant for Hg. janthinomys or vice versa. An understanding of mosquito oviposition behavior is necessary for the development of surveillance and control approaches directed against specific pathogen vectors of medical and veterinary importance.
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Affiliation(s)
- Shayenne Olsson Freitas Silva
- Diptera Laboratory, Oswaldo Cruz Institute (FIOCRUZ), Av. Brazil 4365, Manguinhos, Rio de Janeiro 21040-360, Brazil; (S.O.F.S.); (C.F.d.M.); (P.J.L.)
- Postgraduate Program in Tropical Medicine, Oswaldo Cruz Institute (FIOCRUZ), Av. Brazil 4365, Manguinhos, Rio de Janeiro 21040-360, Brazil
| | - Cecilia Ferreira de Mello
- Diptera Laboratory, Oswaldo Cruz Institute (FIOCRUZ), Av. Brazil 4365, Manguinhos, Rio de Janeiro 21040-360, Brazil; (S.O.F.S.); (C.F.d.M.); (P.J.L.)
- Postgraduate Program in Animal Biology, Institute of Biology, Federal Rural University of Rio de Janeiro, Seropédica, Rio de Janeiro 23890-000, Brazil
| | - Sergio Lisboa Machado
- Laboratory of Molecular Diagnosis and Hematology, Federal University of Rio de Janeiro, Rio de Janeiro 21941-901, Brazil;
| | - Paulo José Leite
- Diptera Laboratory, Oswaldo Cruz Institute (FIOCRUZ), Av. Brazil 4365, Manguinhos, Rio de Janeiro 21040-360, Brazil; (S.O.F.S.); (C.F.d.M.); (P.J.L.)
| | - Jeronimo Alencar
- Diptera Laboratory, Oswaldo Cruz Institute (FIOCRUZ), Av. Brazil 4365, Manguinhos, Rio de Janeiro 21040-360, Brazil; (S.O.F.S.); (C.F.d.M.); (P.J.L.)
- Correspondence:
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Bastos AQ, de Mello CF, Dos Santos Silva J, Gil-Santana HR, Silva SOF, Alencar J. Diversity of Mosquitoes (Diptera: Culicidae) in the Bom Retiro Private Natural Heritage Reserve, Rio de Janeiro State, Brazil. J Med Entomol 2022; 59:446-453. [PMID: 35026036 DOI: 10.1093/jme/tjab222] [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] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Indexed: 06/14/2023]
Abstract
This study registers the diversity of Culicidae in the Bom Retiro Private Natural Heritage Reserve (RPPNBR), Rio de Janeiro state, Brazil, based on the collection of the immature stages in natural and artificial larval habitats. Larvae and pupae were collected monthly at two sites of the RPPNBR from May 2014 to July 2015 using dippers and aquatic pipettes. The diversity of the mosquito community was described using the Shannon-Wiener Diversity Index (H'), as well as diversity, richness, and dominance of species found in different larval habitats (lake, bamboos, bromeliads, and artificial vessels). The Mann-Whitney test was used to calculate differences between the two natural and artificial habitats. Overall, 15,659 specimens belonging to 25 species, ten genera, and two subfamilies were collected. The most abundant species collected at sites that were reforested recently were Culex pleuristriatus Theobald, 1903, Limatus durhamii (Theobald, 1901), Aedes albopictus (Skuse, 1895), Culex neglectus (Lutz, 1904), and Culex retrosus (Lane & Whitman, 1951). In a forest preserved site, the most abundant species were Cx. neglectus, Culex iridescens (Lutz, 1905), Sabethes identicus (Dyar & Knab, 1907), Wyeomyia arthrostigma (Lutz, 1905), and Li. durhamii. With respect to larval habitats, 0.1% of the specimens were collected along the edge of a lake, 5.5% in bamboos, 35.9% in bromeliads, and 58.4% in artificial containers. Only 5.5% of the specimens were collected in the forest preserved site, with the remaining samples from the site with altered vegetation. A greater species richness and diversity were found in forest-altered sites compared to the forest preserved site. Several species were collected in the water accumulated in the nylon lids of plastic water tanks. Such vessels can promote an increase in mosquito population density in the environment surrounding the study area.
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Affiliation(s)
- Amanda Queiroz Bastos
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Avenida Brasil 4365, 21040-360, Rio de Janeiro, Brazil
- Post graduate Program in Animal Biology, Institute of Biology, Federal Rural University of Rio de Janeiro, 23890-000 Seropédica, Rio de Janeiro, Brazil
| | - Cecilia Ferreira de Mello
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Avenida Brasil 4365, 21040-360, Rio de Janeiro, Brazil
- Post graduate Program in Animal Biology, Institute of Biology, Federal Rural University of Rio de Janeiro, 23890-000 Seropédica, Rio de Janeiro, Brazil
| | - Júlia Dos Santos Silva
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Avenida Brasil 4365, 21040-360, Rio de Janeiro, Brazil
| | - Hélcio Reinaldo Gil-Santana
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Avenida Brasil 4365, 21040-360, Rio de Janeiro, Brazil
| | - Shayenne Olsson Freitas Silva
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Avenida Brasil 4365, 21040-360, Rio de Janeiro, Brazil
- Graduate Program in Tropical Medicine, Instituto Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | - Jeronimo Alencar
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Avenida Brasil 4365, 21040-360, Rio de Janeiro, Brazil
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Jules JR, Alencar J, Suárez-Mutis MC, Baptiste EJ, Albuquerque HD, Rosa-Freitas MG, Raccurt C, Oliveira RLD, Silva-do-Nascimento TF. Malaria in Haiti: A descriptive study on spatial and temporal profile from 2009 to 2018. Rev Soc Bras Med Trop 2022; 55:e0355. [PMID: 35239903 PMCID: PMC8909436 DOI: 10.1590/0037-8682-0355-2021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 07/16/2021] [Accepted: 11/23/2021] [Indexed: 11/22/2022] Open
Abstract
Background: Haiti is one of the Caribbean countries where malaria persists. More than 99% of malaria cases are caused by Plasmodium falciparum, the main vector being the mosquito Anopheles albimanus. In this paper, we describe the epidemiological profile of malaria in Haiti between 2009 and 2018. Methods We analyzed information on cases reported by the Ministry of Health of Haiti and the World Health Organization (WHO). Results: Between 2009 and 2018, 232,479 malaria cases were reported by the Ministry of Public Health and Population (MSPP); an increase in the incidence of malaria in the country in 2010, followed by a decrease in 2011, was primarily observed. Due to recent efforts to reduce malaria by 2020, its incidence declined from 60,130 cases in 2010 to 8,978 cases in 2018. Controversially, in terms of the number of reported cases, the MSPP and WHO report conflicting data. However, the results from both datasets present the same trend in Haiti from 2009 to 2018. The results also illustrate the endemicity of the disease throughout Haiti, both in rural and urban areas, especially along the coast. Conclusions: This study emphasizes the need to promote official data collection and analyses, as well as the application of epidemiological surveillance of malaria at the municipal level, for a better understanding of the real impact of malaria on the Haitian population and to create more appropriate interventions.
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Affiliation(s)
- Jean Ricardo Jules
- Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Diptera, Rio de Janeiro, RJ, Brasil.,Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Mosquitos Transmissores de Hematozoários, Rio de Janeiro, RJ, Brasil
| | - Jeronimo Alencar
- Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Diptera, Rio de Janeiro, RJ, Brasil
| | - Martha Cecília Suárez-Mutis
- Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Doenças Parasitárias, Rio de Janeiro, RJ, Brasil
| | - Ernst Jn Baptiste
- Ministère de la Santé Publique et de Population (MSPP), Laboratoire et de Recherche (DELR), Direction d'Épidémiologie, Port-au-Prince, Haiti
| | - Hermano de Albuquerque
- Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Doenças Parasitárias, Rio de Janeiro, RJ, Brasil
| | - Maria Goreti Rosa-Freitas
- Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Mosquitos Transmissores de Hematozoários, Rio de Janeiro, RJ, Brasil.,Geniac Ltda, São Paulo, SP, Brasil
| | | | - Ricardo Lourenço de Oliveira
- Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Mosquitos Transmissores de Hematozoários, Rio de Janeiro, RJ, Brasil
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16
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Alencar J, de Mello CF, Leite PJ, Bastos AQ, Freitas Silva SO, Serdeiro M, dos Santos Silva J, Müller GA. Oviposition activity of Haemagogus leucocelaenus (Diptera: Culicidae) during the rainy and dry seasons, in areas with yellow fever virus circulation in the Atlantic Forest, Rio de Janeiro, Brazil. PLoS One 2021; 16:e0261283. [PMID: 34898653 PMCID: PMC8668088 DOI: 10.1371/journal.pone.0261283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 11/25/2021] [Indexed: 11/18/2022] Open
Abstract
The present study aims to analyze the effectiveness of ovitraps in the capture of Hg leucocelaenus eggs and evaluate the influence of the dry and rainy seasons on their abundance and hatching rates. The eggs were collected in the Atlantic Forest of State of Rio de Janeiro, Brazil, an area in which the yellow fever virus is known to circulate. We distributed 15 ovitraps in three sampling points, with five ovitraps per point. We distributed 15 ovitraps in three sampling points on trees within a forested area, which were sequentially numbered, monitored, and replaced every two weeks from October 2016 to April 2018. There was a high dominance of Hg. leucocelaenus eggs (98.4%) and a variation in egg hatching rates between the wet and dry seasons. These rates were 1.5 times higher in the rainy season than in the dry season. The rainy season also showed a greater abundance of eggs and higher values of ovitrap positivity and egg density indexes in the installed ovitraps. The abundances of Hg. leucocelaenus eggs were positively correlated with mean monthly temperature and air humidity but not significantly correlated with accumulated precipitation. These results, as well as their implications for the possible use of ovitraps to monitor vector mosquitoes of yellow fever in the study region, are discussed.
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Affiliation(s)
- Jeronimo Alencar
- Diptera Laboratory, Oswaldo Cruz Institute (FIOCRUZ), Rio de Janeiro, Brazil
- * E-mail:
| | - Cecilia Ferreira de Mello
- Diptera Laboratory, Oswaldo Cruz Institute (FIOCRUZ), Rio de Janeiro, Brazil
- Graduate Program in Animal Biology, Institute of Biology, Federal Rural University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Paulo José Leite
- Diptera Laboratory, Oswaldo Cruz Institute (FIOCRUZ), Rio de Janeiro, Brazil
| | - Amanda Queiroz Bastos
- Diptera Laboratory, Oswaldo Cruz Institute (FIOCRUZ), Rio de Janeiro, Brazil
- Graduate Program in Animal Biology, Institute of Biology, Federal Rural University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Shayenne Olsson Freitas Silva
- Diptera Laboratory, Oswaldo Cruz Institute (FIOCRUZ), Rio de Janeiro, Brazil
- Graduate Program in Tropical Medicine, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro, Brazil
| | - Michele Serdeiro
- Diptera Laboratory, Oswaldo Cruz Institute (FIOCRUZ), Rio de Janeiro, Brazil
| | | | - Gerson Azulim Müller
- Farroupilha Federal Institute of Education Science and Technology, Panambi, Rio Grande do Sul, Brazil
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Bastos AQ, Leite PJ, de Mello CF, Maia DA, Machado SL, Gil-Santana HR, Freitas Silva SO, Dos Santos-Mallet JR, Alencar J. Bionomy of Mosquitoes in Bamboo Internodes in an Atlantic Forest Remnant of the State of Rio De Janeiro, Brazil. J Am Mosq Control Assoc 2021; 37:208-215. [PMID: 34817616 DOI: 10.2987/21-7044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Living bamboo stalks are one of the most specialized habitats for mosquito oviposition and immature development. Most of the mosquito species that breed in these habitats are sylvatic, and some are of importance for public health as possible vectors of pathogens. Perforated internodes are a very specialized environment due to the difficulty of access. Furthermore, due to their relatively simple fauna, they represent a valuable model for ecological studies that may be applicable to more complex environments. This study aims to assess the mosquito bionomics of species raised in bamboo internodes. Therefore, the diversity of mosquito species and the influence of abiotic variables (pH and temperature) on the distribution of mosquitoes that breed in this habitat were analyzed. The study area is a fragment of Atlantic Forest within the Association of da Armada (ATA) in Nova Iguaçu, state of Rio de Janeiro, Brazil. Immature mosquitoes were sampled with suction tubes (mouth aspirators) between August 2017 and July 2018. A total of 3,170 larvae were collected in 5 bamboo plants, each with 8 stalks perforated. Of these, 688 larvae reached the adult stage, representing 10 genera and 19 species. The most common species were Culex neglectus (43%), Trichoprosopon digitatum (22%), Culex iridescens (8%), Sabethes identicus (7%), and Orthopodomyia albicosta (7%). The richness of the immatures collected in the ATA was 19 species, with a diversity of 1.10 and Shannon evenness of 0.57. A diverse composition of Culicidae in bamboo stalks was found, although dominance was low.
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Araujo-Oliveira AD, Gil-Santana HR, Teixeira CDSB, Santos-Mallet JRD, Alencar J. Evaluation of the Diversity of Culicidae Vectors of the Sylvatic Yellow Fever Virus in Atlantic Forest Remnants with the Use of Ovitraps and Bamboo Traps. Vector Borne Zoonotic Dis 2021; 21:875-883. [PMID: 34652248 DOI: 10.1089/vbz.2021.0033] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Mosquitoes transmit several pathogens in tropical regions, especially in forest areas. The diseases caused by these pathogens include malaria and several arboviruses such as yellow fever. Brazil has the largest endemic area in the world for yellow fever. Many factors can affect the sylvatic cycle of the disease, shifting it into human-inhabited areas. This study aims to examine the oviposition behavior of mosquito species that are effective or potential vectors of the yellow fever virus and which colonize bamboo traps and ovitraps installed at different heights. The positions of the traps in the strata were changed every 15 days. The collection of immature stages (eggs, larvae, and pupae) was performed every 2 weeks for 12 months from August 2018 to July 2019 in the city of Nova Iguaçu, state of Rio de Janeiro, Brazil, in an area near the Tinguá Biological Reserve (REBIO) in the districts of Adrianópolis and Rio D'ouro. Statistical tests were used to compare oviposition at each stratum, and correlation tests showed the relationship between the presence of eggs and immature mosquitoes (larvae and pupae) and temperature, precipitation, and trap type. The diversity was calculated for each trap type and height, as well as the dry and rainy seasons. During the sampling period, 3929 eggs and 4953 larvae and pupae were collected. The traps installed in the high strata remained empty when traps on the ground were installed at the same time, although not when they were installed on their own. The results obtained with this new proposed methodology suggest that diversity is greatest in the rainy season and in bamboo traps for either stratum. Furthermore, this study suggests that mosquitoes begin searching for breeding sites at ground level. Higher levels may be occupied due to the absence or impermanence of other breeding sites.
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Affiliation(s)
- Alexandre de Araujo-Oliveira
- Laboratorio Interdisciplinar de Vigilância Entomológica em Díptera e Hemiptera, Oswaldo Cruz Institute (FIOCRUZ), Rio de Janeiro, Brazil.,Postgraduate Program in Tropical Medicine, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro, Brazil
| | | | - Carolina de Souza Brandão Teixeira
- Laboratorio Interdisciplinar de Vigilância Entomológica em Díptera e Hemiptera, Oswaldo Cruz Institute (FIOCRUZ), Rio de Janeiro, Brazil
| | - Jacenir Reis Dos Santos-Mallet
- Laboratorio Interdisciplinar de Vigilância Entomológica em Díptera e Hemiptera, Oswaldo Cruz Institute (FIOCRUZ), Rio de Janeiro, Brazil.,Universidade Iguaçu-Unig, Nova Iguaçu, Rio de Janeiro, Brazil
| | - Jeronimo Alencar
- Diptera Laboratory, Oswaldo Cruz Institute (FIOCRUZ), Rio de Janeiro, Brazil
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Soares Gil LH, Mello CF, Silva JDS, Oliveira JDS, Freitas Silva SO, Rodríguez-Planes L, Da Costa FM, Alencar J. Evaluation of Mansonia spp. Infestation on Aquatic Plants in Lentic and Lotic Environments of the Madeira River Basin in Porto Velho, Rondônia, Brazil. J Am Mosq Control Assoc 2021; 37:143-151. [PMID: 34407173 DOI: 10.2987/21-7007.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The females of Mansonia are voraciously hematophagous. The spiracular apparatus of the immature, larval, and pupal forms is adapted to perforate submerged aquatic vegetation, from whose aeriferous aerenchyma they obtain the oxygen necessary for breathing. The proliferation of aquatic plants, in some cases linked to anthropic modifications that reduce water flow and/or increase organic matter content, may therefore contribute to the spread of these mosquitoes. This study aims to assess the presence of immature individuals of Mansonia in different aquatic plants of the Madeira River basin in 10 lentic and lotic environments and correlate their population density with abiotic factors such as water pH, dissolved O2, conductivity, and temperature. The sampling lasted from February 2016 to June 2018, a 29-month period during which 31,287 specimens belonging to the genus Mansonia were captured. Of the 12 species of macrophytes inspected, Eichhornia crassipes made up 70.1% of the samples. Lentic environments accounted for 58.9% of the samples and lotic environments for 41.1%. Immature individuals were most commonly found on Eichhornia crassipes, with this plant accounting for an average of 96.2% of all individuals, with a percentage ranging between 58.2% and 77.1% in different breeding areas. Only at the Foz do Igarapé Jirau site was a different distribution observed, with the number of aquatic plants more nearly equal: 83.3% of the larvae were found in Eichhornia crassipes, 9.2% in Ceratopteris pteridoides, 3.6% in E. azurea, 2.0% in Salvinia sp., and 1.9% in Pistia sp. The greatest richness was found in Iguapé do Raul. Concerning the larval/plant relationship, although less frequent, E. azurea had a higher larval density of Mansonia spp. It is important to emphasize that this finding may indicate a possible selection for this plant. Egg deposition by Mansonia spp. was more abundant in sample areas with Eichhornia crassipes and Pistia sp. The number of specimens collected was positively correlated with temperature, pH, and conductivity. These correlations showed a marked increase in the rainy season. Therefore, we were able to establish preliminary parameters of how environmental changes influence the ecology of this important genus of mosquitoes, the species of which are critical disease vectors.
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Alencar J, Melandri V, Silva J, Albuquerque HG, Guimarães AÉ. Ecological characterization of mosquitoes (Diptera: Culicidae) in areas of the Mato Grosso Pantanal, Mato Grosso State, Brazil. Trop Zool 2021. [DOI: 10.4081/tz.2021.84] [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] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Bimonthly diurnal and nocturnal captures were conducted in four different sampling sites of the Mato Grosso Pantanal region over 24 consecutive months between March 2009 and January 2011. The goal of performing these collections was to elucidate aspects of the biology and ecology of mosquitoes in this region since little to nothing is known about these aspects for many species. A total of 17,532 specimens were captured, comprising two subfamilies, nine genera, and 44 species. The main species of culicids found in the Mato Grosso Pantanal had strong ecological compatibility with well-preserved environments and with some of the specific habitats found in at least one of the four selected collection sampling sites. Anopheles darlingi, An. albitarsis, and An. triannulatus are well-suited to environments with large water bodies and greater anthropic activity. Culex nigripalpus and Cx. quinquefasciatus prefer environments with bush fragments and pronounced human action and movement. Culex declarator and Psorophora albigenu, the most eclectic, prefer wild areas and with some anthropic activity. Mansonia titillans is associated with environments offering a wide variety of natural breeding areas that enable its development, in particular natural swamp areas covered with macrophytes, which is one of the natural components of the Pantanal biome. The effect of the flooding season on the population density of anophelines is especially advantageous, with an explosion in the number of individuals in periods of widespread flooding. The region’s environmental dynamics are regulated by flooding cycles with alternating periods of flooding and drought, which are the main factors governing the ecology of the local fauna and flora. Flooding periods contribute to raising culicid species’ richness and diversity, while the droughts result in a more even distribution of specimens within species. The flooding season of the Pantanal occurs between November and May and coincides with the greatest abundance of culicid species. During this period, the human population of the region has greater contact with mosquito vectors carrying pathogens, including arboviruses, which previous studies have confirmed via seropositivity in the region’s equines and birds.
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Gil-Santana HR, Brockmann E, Alencar J. The correct pronunciation of the generic name Aedes, to which Aedes aegypti belongs. AN ACAD BRAS CIENC 2021; 93:e20201012. [PMID: 34076184 DOI: 10.1590/0001-3765202120201012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 11/24/2020] [Indexed: 11/22/2022] Open
Abstract
Aedes aegypti is currently the mosquito with major impact on public health in Brazil and a proven vector of several emerging arboviruses. By consequence, its name is frequently being spoken by lay people of the media and general public, as well as by researchers in this country both in general media and academic events. However, the generic name Aedes, contrary to its etymological origin and worldwide correct pronunciation ("A-e-des"), has been frequently mispronounced as "Edes" on many occasions by media spokespersons and by researchers and lay people in Brazil. However, based on historical and linguistic evidence, it is confirmed here that the correct historical pronunciation (A-e-des) must be maintained and observed in Brazil as it is enunciated all over the World.
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Affiliation(s)
- Hélcio R Gil-Santana
- Instituto Oswaldo Cruz, Laboratório de Diptera, Av. Brasil, 4365, 21040-900, Rio de Janeiro, RJ, Brazil
| | | | - Jeronimo Alencar
- Instituto Oswaldo Cruz, Laboratório de Diptera, Av. Brasil, 4365, 21040-900 Rio de Janeiro, RJ, Brazil
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DE Mello CF, Alencar J. Ultrastructure of the egg of Coquillettidia venezuelensis (Theobald) (Diptera: Culicidae). Zootaxa 2020; 4894:zootaxa.4894.3.8. [PMID: 33311075 DOI: 10.11646/zootaxa.4894.3.8] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Indexed: 11/04/2022]
Abstract
This study examined the ultrastructural characteristics of the egg of Coquillettidia venezuelensis (Theobald) (Diptera: Culicidae) with the aid of scanning electron microscopy. The eggs are elliptical and blackish, measuring on average 525.3 ± 12.8 μm in length and 94.9 ± 5.14 μm in width, with a length to width ratio of 5.54 ± 0.18. The anterior region of the egg is tubuliform, with a well-developed micropylar collar measuring approximately 2.54 ± 0.33 μm in thickness, the inner side of which is uniformly and deeply excavated, with a depression around the outer margin of the micropylar disc, which has a diameter of 29.4 ± 1.7 μm, an area of 234.4 μm2 ± 401.3 μm2 and a slightly elevated central region measuring 1.7 ± 0.5 μm in diameter that bears the central micropyle.
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Affiliation(s)
- Cecilia Ferreira DE Mello
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Avenida Brasil 4365, Manguinhos, 21040- 360, Rio de Janeiro, RJ, Brazil Postgraduate Program in Animal Biology, Institute of Biology, Federal Rural University of Rio de Janeiro, BR 465 Rd, Km 7, 23897-000, Seropédica, RJ, Brazil..
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de Aguiar Maia D, Bastos AQ, Leite PJ, Gil-Santana HR, Dos Santos Silva J, Alencar J. Comparative Analysis Between Sampling Methods for Immature Mosquitoes in an Atlantic Forest Fragment in Brazil. J Am Mosq Control Assoc 2020; 36:245-248. [PMID: 33647111 DOI: 10.2987/20-6947.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this study, traps were set out to improve mosquito monitoring, study their viability, and determine the most suitable traps for female mosquito species of epidemiological importance during oviposition. The effectiveness of 3 types of traps (bamboo traps, tire traps, and ovitraps) were compared at 2 sampling sites. A total of 24 traps were installed on the ground at elevations of 3 m, 6 m, and 9 m in a fragment of the Atlantic Forest in the municipality of Nova Iguaçu, Rio de Janeiro State, Brazil. The samplings took place every 2 wk from July 2017 to June 2018. A total of 1,854 mosquitoes belonging to 16 different species were identified, of which 2 species are involved in the transmission of arbovirus: Haemagogus leucocelaenus (Dyar and Shannon) and Aedes albopictus Skuse. Larval tire traps were the most effective at trapping females laying eggs, followed by ovitraps. The results were consistent with the usual habitats of certain species that were found in tire traps, which are artificial objects commonly found in human environments.
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Sousa J, Carmo J, Matos D, Rodrigues G, Ferreira A, Alencar J, Klemtz F, Durazzo A, Carvalho S, Costa F, Carmo P, Parreira L, Morgado F, Cavaco D, Adragao P. Catheter ablation in atrial fibrillation: comorbidities and mortality from high-volume centers. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Catheter ablation (CA), has gained wider acceptance as an attractive option for treating symptomatic AF. Although traditionally seen as a safe procedure, there is limited and conflicting data on procedure-related early morbimortality, with new evidence suggesting early mortality may be as high as 0.5%-1%.
Purpose
We aimed to assess the rates of early and late morbimortality of post-atrial fibrillation (AF) ablation in high-volume centers.
Methods
Prospective registry of 2 high-volume ablation centers, comprising 3722 consecutive patients (mean age 61.1±11.2, 66.4% male, n=2471), who underwent AF ablation from 2005 to 2019. Early mortality was defined as death during initial admission or during the first 45 days after ablation. Median follow-up time was 5.4 years.
Results
Most patients were treated with radiofrequency (97%) while 3% were treated with cryoablation. Early mortality was 0.08% (n=3), with a median time from ablation to death of 22 days. Cumulative mortality at 3, 6 and 12 months was 0.08%, 0.16% and 0.19%, respectively. At 3 and 5 years, mortality remained low at 0.48% and 0.73%, respectively. Early mortality was higher among patients who had suffered procedural complications (fistula and stroke, p<0.001). Among the latter, pericardial effusion and tamponade were the most frequently found (0.6%, n=24), only 1 of which required emergent surgical drainage and myocardial repair. Early ischemic stroke occurred in 2 patients (0.1%). Other less frequent complications were atrio-esophageal fistula (0.1%, n=2), phrenic nerve palsy (0.1%, n=2), anoxic encephalopathy following cardiac arrest (0.03%, n=1) and pulmonary vein stenosis (0.03%, n=1).
Conclusion
Early mortality following ablation is very low (<0.1%), when performed by an experienced high-volume team. Severe complications are rare (<1%) and mostly amenable to treatment. Our findings reaffirm the overall safety of AF ablation.
AF catheter ablation morbimort
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- J Sousa
- Hospital Dr. Nelio Mendonca, Funchal, Portugal
| | - J Carmo
- Hospital de Santa Cruz, Cardiology, Lisbon, Portugal
| | - D Matos
- Hospital de Santa Cruz, Cardiology, Lisbon, Portugal
| | - G Rodrigues
- Hospital de Santa Cruz, Cardiology, Lisbon, Portugal
| | - A Ferreira
- Hospital de Santa Cruz, Cardiology, Lisbon, Portugal
| | - J Alencar
- Hospital de Santa Cruz, Cardiology, Lisbon, Portugal
| | - F Klemtz
- Hospital de Santa Cruz, Cardiology, Lisbon, Portugal
| | - A Durazzo
- Hospital de Santa Cruz, Cardiology, Lisbon, Portugal
| | - S Carvalho
- Hospital de Santa Cruz, Cardiology, Lisbon, Portugal
| | - F.M Costa
- Hospital de Santa Cruz, Cardiology, Lisbon, Portugal
| | - P Carmo
- Hospital de Santa Cruz, Cardiology, Lisbon, Portugal
| | - L Parreira
- Hospital da Luz, SA, Cardiology, Lisbon, Portugal
| | - F Morgado
- Hospital de Santa Cruz, Cardiology, Lisbon, Portugal
| | - D Cavaco
- Hospital de Santa Cruz, Cardiology, Lisbon, Portugal
| | - P Adragao
- Hospital de Santa Cruz, Cardiology, Lisbon, Portugal
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Alencar J, De Mello CF, Guimarães AÉ, Maia DDA, Balbino VDQ, Freitas MTDS, Marcondes CB. The first detection of a population of Aedes aegypti in the Atlantic Forest in the state of Rio de Janeiro, Brazil. Trop Zool 2020. [DOI: 10.4081/tz.2020.70] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Aedes aegypti is almost completely restricted to human-modified environments, especially urban areas, and rarely invades forests. Ovitraps were utilized in a reserve (Bom Retiro) in Rio de Janeiro state. Eggs of A. aegypti, genetically not differentiable from those of urban mosquitoes, were obtained at a location more than 700 m inside the border of the forest and 900 m away from a trail at the entrance to the forest. The presence of A. aegypti in a primary forest indicates its ability to adapt to sylvatic environments in Brazil, suggesting great potential for the transmission of several arboviruses due to the difficulty in controlling these mosquitoes.
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Couto-Lima D, Andreazzi CS, Leite PJ, Bersot MIL, Alencar J, Lourenço-de-Oliveira R. Seasonal population dynamics of the primary yellow fever vector Haemagogus leucocelaenus (Dyar & Shannon) (Diptera: Culicidae) is mainly influenced by temperature in the Atlantic Forest, southeast Brazil. Mem Inst Oswaldo Cruz 2020; 115:e200218. [PMID: 32696917 PMCID: PMC7370926 DOI: 10.1590/0074-02760200218] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [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: 05/07/2020] [Accepted: 06/30/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Southeast Brazil has recently experienced a Yellow Fever virus (YFV) outbreak where the mosquito Haemagogus leucocelaenus was a primary vector. Climatic factors influence the abundance of mosquito vectors and arbovirus transmission. OBJECTIVES We aimed at describing the population dynamics of Hg. leucocelaenus in a county touched by the recent YFV outbreak. METHODS Fortnightly egg collections with ovitraps were performed from November 2012 to February 2017 in a forest in Nova Iguaçu, Rio de Janeiro, Brazil. The effects of mean temperature and rainfall on the Hg. leucocelaenus population dynamics were explored. FINDINGS Hg. leucocelaenus eggs were continuously collected throughout the study, with a peak in the warmer months (December-March). The climatic variables had a time-lagged effect and four weeks before sampling was the best predictor for the positivity of ovitraps and total number of eggs collected. The probability of finding > 50% positive ovitraps increased when the mean temperature was above 24ºC. The number of Hg. leucocelaenus eggs expressively increase when the mean temperature and accumulated precipitation surpassed 27ºC and 100 mm, respectively, although the effect of rainfall was less pronounced. MAIN CONCLUSIONS Monitoring population dynamics of Hg. leucocelaenus and climatic factors in YFV risk areas, especially mean temperature, may assist in developing climate-based surveillance procedures to timely strengthening prophylaxis and control.
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Affiliation(s)
- Dinair Couto-Lima
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Mosquitos Transmissores de Hematozoários, Rio de Janeiro, RJ, Brasil
| | - Cecilia S Andreazzi
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Biologia e Parasitologia de Mamíferos Silvestres Reservatórios, Rio de Janeiro, RJ, Brasil
| | | | - Maria Ignez Lima Bersot
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Mosquitos Transmissores de Hematozoários, Rio de Janeiro, RJ, Brasil
| | - Jeronimo Alencar
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Diptera, Rio de Janeiro, RJ, Brasil
| | - Ricardo Lourenço-de-Oliveira
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Mosquitos Transmissores de Hematozoários, Rio de Janeiro, RJ, Brasil
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Oliveira AA, Gil-Santana HR, Alves RJV, Alencar J. Aedes aegypti Invades Trindade Island, 1,140 km from the Brazilian Coast, in the South Atlantic. J Am Mosq Control Assoc 2020; 36:112-114. [PMID: 33647127 DOI: 10.2987/19-6911.1] [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] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Herein we report the first recorded arrival of Aedes aegypti on Trindade Island, approximately 1,140 km from the Brazilian coast, posing potential health risks to the human inhabitants thereof. The collection of mosquitoes was done from August to October 2019 via an active search for adults, eggs, and larvae by surveying objects with accumulated water and implantation of 23 ovitraps in different regions of the island. As a result, we collected 33 adults of Ae. aegypti via active search inside buildings. A total of 433 eggs of Ae. aegypti were also obtained from the ovitraps, all of which subsequently reached the adult stage. No other species of Culicidae was found.
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Affiliation(s)
- Alexandre A Oliveira
- Laboratório Interdisciplinar em Vigilância Entomológica em Diptera e Hemiptera, Instituto Oswaldo Cruz, Av. Brasil, 4365, 21040-360, Rio de Janeiro, Brazil
| | - Hélcio R Gil-Santana
- Laboratório de Diptera, Instituto Oswaldo Cruz, Av. Brasil, 4365, 21040-360, Rio de Janeiro, Brazil
| | - Ruy J Válka Alves
- Laboratório de Florística e Biogeografia Insular e Montana, Departamento de Botânica, Museu Nacional, Universidade Federal do Rio de Janeiro, Quinta da Boa Vista s. no., São Cristóvão, 20940-040, Rio de Janeiro, RJ, Brasil
| | - Jeronimo Alencar
- Laboratório de Diptera, Instituto Oswaldo Cruz, Av. Brasil, 4365, 21040-360, Rio de Janeiro, Brazil
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da Silva Ferreira FA, Simões RDC, Ferreira-Keppler RL, Alencar J, Scarpassa VM, Tadei WP. Scanning Electron Microscopy and Geometric Contour Morphometry for Identifying Eggs of Three Amazonian Species of Mansonia (Diptera: Culicidae). J Med Entomol 2020; 57:745-754. [PMID: 31819960 DOI: 10.1093/jme/tjz240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Indexed: 06/10/2023]
Abstract
The eggs of three Amazonian species of the genus Mansonia (Diptera: Culicidae) were analyzed using morphological and morphometric characters. Eggs of Mansonia humeralis Dyar & Knab, 1916 were morphologically different from those of Mansonia titillans (Walker, 1848) and Mansonia amazonensis (Theobald, 1901), which were more similar to each other according to linear and geometric morphometry. A principal component analysis generated from elliptic Fourier contour data (PC1-92.6% and PC2-2.61%) indicated that Ma. amazonensis and Ma. titillans are more similar to each other than either is to Ma. humeralis. Discriminant multivariate analysis was highly accurate with only four classification errors and a 90% accuracy rate. The results indicate that the three Amazonian species can be precisely distinguished in the egg stage and that geometric morphometry based on elliptic Fourier contours is a promising method for distinguishing eggs of species of Mansonia. An identification key based on egg morphology is provided to distinguish the four Neotropical species.
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Affiliation(s)
- Francisco Augusto da Silva Ferreira
- Programa de Pós-Graduação em Entomologia - PPGEnt - Instituto Nacional de Pesquisas da Amazônia - INPA; Avenida André Araújo, 2.936 - CEP: 69067-375 - Manaus, Amazonas, Brazil
| | - Rejane de Castro Simões
- Programa de Pós-Graduação em Biotecnologia - PPGBIOTEC - Universidade Federal do Amazonas - UFAM; Av. General Rodrigo Octavio Jordão Ramos, 1200 - CEP: 69067-005 - Manaus - Amazonas, Brazil
| | - Ruth Leila Ferreira-Keppler
- Laboratório de Taxonomia e Sistemática de Insetos Aquáticos - Instituto Nacional de Pesquisas da Amazônia - INPA; Avenida André Araújo, 2.936 - CEP: 69067-375 - Manaus, Amazonas, Brazil
| | - Jeronimo Alencar
- Laboratório de Diptera - Instituto Oswaldo Cruz - FIOCRUZ; Avenida Brasil 4365, CEP: 21040-360, Manguinhos - Rio de Janeiro, Brazil
| | - Vera Margarete Scarpassa
- Laboratório de Genética de Populações e Evolução de Mosquitos Vetores - Coordenação de Biodiversidade (COBIO) - Instituto Nacional de Pesquisas da Amazônia - INPA; Avenida André Araújo, 2.936 - CEP: 69067-375 - Manaus, Amazonas, Brazil
| | - Wanderli Pedro Tadei
- Laboratório de Malária e Dengue - Coordenação de Sociedade, Ambiente e Saúde (COSAS) - Instituto Nacional de Pesquisas da Amazônia - INPA; Avenida André Araújo, 2.936 - CEP: 69067-375 - Manaus, Amazonas, Brazil
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Jules JR, Albuquerque HG, Suárez-Mutis MC, Pereira de Oliveira SM, Gil-Santana HR, Rodrigues W, Alencar J. Species Diversity and Abundance of Anopheles (Nyssorhynchus) (Diptera: Culicidae) in Cachoeiras de Macacu Municipality, Rio de Janeiro State: An Area of the Atlantic Forest Receptive and Vulnerable to Malaria. J Med Entomol 2019; 56:849-858. [PMID: 30649408 DOI: 10.1093/jme/tjy236] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Indexed: 06/09/2023]
Abstract
The present study evaluated the diversity of Anopheles Meigen, 1818 belonging to the subgenus Nyssorhynchus Blanchard, 1902 in four areas of Cachoeiras de Macacu municipality, Rio de Janeiro, Brazil. The immature collections were carried out during a rainy period and a post-rainy season. During the two periods, 3,932 specimens of Anopheles (Nyssorhynchus) were collected: 562 in the rainy period (14.29%) and 3,370 in the post-rainy period (85.70%). Among 3,932 specimens collected during both periods, 489 were identified, 50 (8.89%) in the rainy period and 439 (13.02%) in the post-rainy period. Nine Anopheles species were recorded: Anopheles albitarsis Lynch Arribálzaga, 1878 s.l. (76.86%), An. braziliensis (Chagas, 1907) (17%); An. evansae (Bréthes, 1926) (8, 48%); An. triannulatus (Neiva & Pinto, 1922) s.l. (8.23%); An. oswaldoi (Peryassú, 1922) (6.43%); An. strodei Root, 1926 (5.40%); An. argyritarsis Robineau-Desvoidy, 1827 (1.54%); An. rangeli Gabaldón et al., 1940 (1.28%); and An. aquasalis Curry, 1932 (0.51%). Among them, An. albitarsis was dominant and abundant in 93.75% of the collection points. Our results show a diverse Anopheles fauna in the municipality of Cachoeiras de Macacu, with a strong association of occurrence between An. rangeli and An. oswaldoi; An. rangeli and An. evansae; An. evansae and An. oswaldoi; and An. albitarsis s.l. and An. braziliensis during the rainy period. However, there was a weak correlation in the post-rainy period, except between An. rangeli and An. oswaldoi and between An. triannulatus and An. aquasalis, which displayed a moderate linear correlation. Our results suggest that following a potential reintroduction of malaria Cachoeiras de Macacu, local transmission of Plasmodium Marchiafava & Celli, 1885 may be enhanced by the presence of nine Nyssorhynchus species (all potential malaria vectors).
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Affiliation(s)
- Jean Ricardo Jules
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro, Brazil
| | | | | | | | | | - William Rodrigues
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro, Brazil
| | - Jeronimo Alencar
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro, Brazil
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Alencar J, Gil-Santana HR, DE Mello CF, Marcondes CB, Santos-Mallet JRD. Ultrastructure and morphometry of the egg of Coquillettidia albifera (Prado) with illustrations of male genitalia (Diptera: Culicidae). Zootaxa 2019; 4565:zootaxa.4565.1.13. [PMID: 31716499 DOI: 10.11646/zootaxa.4565.1.13] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 03/06/2019] [Indexed: 11/04/2022]
Abstract
The ultrastructure and morphometry of the egg of Coquillettidia albifera (Prado) (Diptera: Culicidae) studied under scanning electronic microscopy is presented for the first time. The identification of the species was confirmed by examination of the genitalia of males collected with females. The male genitalia are redescribed and digital photographs are provided. The eggs are elliptical with the anterior region elongate and tubuliform, length 661 ± 2.59 µm and width 183 ± 2.59 µm (ratio length/width 3.61 ± 0.08). The dorsal surface is covered by a hexagonal, pentagonal and rectangular chorionic network with randomly distributed tubercles. The micropylar disc has a diameter of 18.91 ± 0.65 µm, surrounded by a continuous protuberant collar with a thickness of 4.4 ± 0.3 µm. No structure or vestige of cement related to egg attachment was observed.
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Affiliation(s)
- Jeronimo Alencar
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Avenida Brasil 4365, Manguinhos, 21040-360, Rio de Janeiro, RJ, Brazil..
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Silva SOF, Fuente ALCDL, Mello CFD, Alencar J. Morphological differentiation between seven Brazilian populations of Haemagogus capricornii and Hg. janthinomys (Diptera: Culicidae) using geometric morphometry of the wings. Rev Soc Bras Med Trop 2019; 52:e20180106. [PMID: 30652787 DOI: 10.1590/0037-8682-0106-2018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 06/06/2018] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION Haemagogus capricornii and Hg. janthinomys females are considered morphologically indistinguishable. We analyzed morphometric variability between Brazilian populations of these species using wing geometric morphometry. METHODS Size and shape at intra- and interspecific levels were analyzed in 108 Hg. capricornii and Hg. janthinomys females. RESULTS Geometric morphometry indicated size and shape variables can differentiate these species at interspecific level. However, at intraspecific level, results show relative differentiation. Two populations of Hg. capricornii had a smaller centroid size with no significant differences between them, whereas all Hg. janthinomys populations showed significant differences. CONCLUSIONS Both species were correctly identified by geometric morphometry.
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Affiliation(s)
- Shayenne Olsson Freitas Silva
- Laboratório de Diptera, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brasil.,Laboratório Interdisciplinar de Vigilância Entomológica em Diptera e Hemíptera, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brasil
| | - Ana Laura Carbajal de la Fuente
- CONICET - Buenos Aires' University. Institute of Ecology, Genetics and Evolution (IEGEBA), Eco-Epidemiology Laboratory. Buenos Aires, Argentina
| | - Cecilia Ferreira de Mello
- Laboratório de Diptera, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brasil.,Instituto de Biologia, Pós-Graduação em Biologia Animal, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ, Brasil
| | - Jeronimo Alencar
- Laboratório de Diptera, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brasil
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Alencar J, Pacheco JB, Dos Santos Silva J, Silva SOF, Guimarães AÉ. Influence of Climatic Factors On Psorophora ( Janthinosoma) Albigenu In Pantanal Landscape, Mato Grosso State, Brazil. J Am Mosq Control Assoc 2018; 34:177-181. [PMID: 31442173 DOI: 10.2987/18-6749.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In order to assess the influence of climatic variations in temperature, relative humidity, and rainfall upon the population density of Psorophora albigenu (Peryassú, 1908) in its natural habitat, samplings were carried out at different times of the year in Mato Grosso, Brazil. Mosquitoes were captured with the use of suction tubes and Shannon traps during 2 different periods of the day and 1 at night. A total of 2,637 Ps. albigenu specimens were captured, including 497 (18.8%) in March 2009, 1,240 (47.0%) in January 2010, and 484 (18.4%) in January 2011. These months represented 84.2% of this species occurrence during the collection period. November was the month of the lowest occurrence of the species, with only 10 (0.4%) specimens collected in 2009 and 8 (0.3%) specimens in 2010. The climatological variable that presented a linear correlation coefficient within the 95% confidence interval was rainfall, with a linear correlation indicator of 0.793, above the relevance factor of 0.708, showing a relationship between the frequency of Ps. albigenu and rainfall of the region.
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Silva SOF, de Mello CF, Gleiser RM, Oliveira AA, Maia DDA, Alencar J. Evaluation of Multiple Immersion Effects on Eggs From Haemagogus leucocelaenus, Haemagogus janthinomys, and Aedes albopictus (Diptera: Culicidae) Under Experimental Conditions. J Med Entomol 2018; 55:1093-1097. [PMID: 29846652 DOI: 10.1093/jme/tjy080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Indexed: 06/08/2023]
Abstract
Studies on the bioecology of Haemagogus leucocelaenus Dyar and Shannon 1924, Haemagogus janthinomys Dyar 1921, Aedes albopictus Skuse 1895 (Diptera: Culicidae) mosquitos are extremely important from an epidemiologic point of view, as they are known to be vectors of many important pathogens and, therefore, act as the main factor responsible for the maintenance of several zoonoses natural cycles. The present work aimed to elucidate their seasonal egg-hatching rate using the immersion method. Ovitraps were used to collect mosquito eggs from an Atlantic Forest fragment, in the State of Rio de Janeiro, Brazil, from November 2015 to November 2016. After collection, the eggs were immersed 40 times to assess their hatching rate and evaluate the number of immersions resulting in the highest hatchability during the study period. Differences in the proportion of hatched eggs between species and seasons (spring, summer, fall, winter) and in the numbers of immersions in which eggs hatched were assessed using odds ratios. Hg. leucocelaenus was the species with the highest number of eggs hatching in all sampling periods, followed by Ae. albopictus. Most Ae. albopictus eggs hatched on first immersion regardless of season. Both the numbers of eggs and the number of immersion in which the Haemagogus eggs hatched showed high variability within seasons. In spring, the proportion of eggs that hatched on the first compared to further immersions was similar, while in fall and winter a higher percentage (over 94%) of Hg. leucocelaenus eggs hatched on the first immersion; the opposite pattern was observed in the summer. These results differ from previous observations linking increased hatching to warmer months. The number of immersions in which Hg. leucocelaenus eggs hatched varied between seasons, however differences were not statistically significant. These results evidence the need for further studies to elucidate factors that influence hatching patterns.
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Affiliation(s)
- Shayenne Olsson Freitas Silva
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro, Brazil
- Postgraduate Program in Tropical medicine, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro, Brazil
| | - Cecilia Ferreira de Mello
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro, Brazil
- Postgraduate Program in Animal Biology, Institute of Biology, Federal Rural University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Raquel M Gleiser
- Universidad Nacional de Córdoba - CONICET. IMBIV, Centro de Relevamiento y Evaluación de Recursos Agrícolas y Naturales (CREAN), Av. Valparaíso, Córdoba, Argentina
- UNC, Facultad de Ciencias Exactas, Físicas y Naturales, Av. Vélez Sársfield, Córdoba, Argentina
| | - Alexandre A Oliveira
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro, Brazil
- Interdisciplinary Entomological Surveillance Laboratory in Diptera and Hemiptera, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro, Brazil
| | - Daniele de Aguiar Maia
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro, Brazil
- Postgraduate Program in Animal Biology, Institute of Biology, Federal Rural University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Jeronimo Alencar
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro, Brazil
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Marcondes CB, De Mello CF, Bastos AQ, Montarsi F, Alencar J, Santos-Mallet J. Description of the egg of Hulecoeteomyia koreica (Edwards) (Diptera: Culicidae) using scanning electron microscopy. Zootaxa 2018; 4442:194-200. [PMID: 30313993 DOI: 10.11646/zootaxa.4442.1.13] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 06/29/2018] [Indexed: 11/04/2022]
Abstract
The egg of Hulecoeteomyia koreica (Edwards) [=Aedes koreicus (Edwards)], an invasive mosquito in Europe, is described from material obtained in Italy. Eggs are cigar-shaped and tapered posteriorly. They are 667.5 ±47.27 µm in length, and the width posteriorly, in the middle and near the micropyle is, respectively, 113.18 ±10.07, 182.5 ±26.92 and 142.25 ±13.85µm. The outer chorion has groups of tubercles, 3 or 4 in an irregular row in the anterior region and 4-6 irregularly dispersed in cavities surrounded by a covering similar to a membrane. The micropyle is surrounded by an irregular collar, and groups of tubercles are less defined in this region. This pattern is different from the egg described for any other mosquito species.
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Affiliation(s)
- Carlos Brisola Marcondes
- Department of Microbiology Immunology and Parasitology, Center of Biological Sciences, Federal University of Santa Catarina, 88040-900, Florianópolis, Santa Catarina, Brazil..
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Alencar J, Mello CFD, Morone F, Albuquerque HG, Serra-Freire NM, Gleiser RM, Silva SOF, Guimarães AÉ. Distribution of Haemagogus and Sabethes Species in Relation to Forest Cover and Climatic Factors in the Chapada Dos Guimarães National Park, State of Mato Grosso, Brazil. J Am Mosq Control Assoc 2018; 34:85-92. [PMID: 31442164 DOI: 10.2987/18-6739.1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Members of the genera Haemagogus and Sabethes are the most important biological vectors of the wild yellow fever virus (WYF) in the forested areas of the Americas. The ecologies of Haemagogus janthinomys, Hg. leucocelaenus, Sabethes chloropterus, and Sa. glaucodaemon were studied in a forest of the Chapada dos Guimarães National Park, state of Mato Grosso, Brazil, to evaluate the influence of climatic factors (temperature and relative humidity [RH]) on their abundance. We also examined the association of climate with landscape structure on species distribution patterns throughout the seasons of the year. Multiple stepwise regressions showed that RH was most likely to influence the density of mosquito populations. A multidimensional scaling (MDS) was used to evaluate the effects of forest cover on the composition of mosquito populations at different radii (100-, 250-, and 1,000-m-radius buffer areas). The MDS provided 2 dimensions with values that indicated a higher similarity in the composition of culicid populations between sites 1 and 3, while site 2 was separate from the others in the ordination space. Site 2 had a much higher forest cover ratio at 100-m radius compared with sites 1 and 3. We found a possible relationship between the forest cover and the composition of the mosquito populations only in the 100-m radius. These results enabled us to infer that RH directly favored the activity of mosquito populations and that the forest cover located closest to the sampling site may influence the species composition. Since mosquito abundance was higher in the sites with lower local forest cover, forest fragmentation may be a key factor on the presence of WYF vector.
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Silva SOF, Ferreira de Mello C, Figueiró R, de Aguiar Maia D, Alencar J. Distribution of the Mosquito Communities (Diptera: Culicidae) in Oviposition Traps Introduced into the Atlantic Forest in the State of Rio de Janeiro, Brazil. Vector Borne Zoonotic Dis 2018; 18:214-221. [PMID: 29595406 PMCID: PMC5878547 DOI: 10.1089/vbz.2017.2222] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The Atlantic Rainforest of South America is one of the major biodiversity hotspots of the world and serves as a place of residence for a wide variety of Culicidae species. Mosquito studies in the natural environment are of considerable importance because of their role in transmitting pathogens to both humans and other vertebrates. Community diversity can have significant effects on the risk of their disease transmission. The objective of this study was to understand the distribution of mosquito communities using oviposition traps in a region of the Atlantic Forest. Sampling was carried out in Bom Retiro Private Natural Reserve (RPPNBR), located in Casimiro de Abreu, Rio de Janeiro, using oviposition traps, which were set in the forest environment, from October 2015 to December 2016. The canonical correspondence analysis was used to assess the influence of the climatic variables (precipitation, maximum dew point, and direction) throughout the seasons on the population density of the mosquito species. The results showed that population density was directly influenced by climatic variables, which acted as a limiting factor for the mosquito species studied. The climatic variables that were significantly correlated with the density of the mosquito species were precipitation, maximum dew point, and direction. Haemagogus janthinomys was positively correlated with the three climatic variables, whereas Haemagogus leucocelaenus was positively correlated with precipitation and maximum dew point, and negatively correlated with direction.
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Affiliation(s)
- Shayenne Olsson Freitas Silva
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro, Brazil
- Postgraduate Program in Tropical Medicine, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro, Brazil
| | - Cecilia Ferreira de Mello
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro, Brazil
- Postgraduate Program in Animal Biology, Institute of Biology, Federal Rural University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ronaldo Figueiró
- Environmental Biotechnology Laboratory, Fundação Centro Universitário Estadual da Zona Oeste (UEZO), Rio de Janeiro, Brazil
- Centro Universitário de Volta Redonda (UniFOA), Volta Redonda, Brazil
- Universidade Castelo Branco (UCB), Rio de Janeiro, Brazil
| | - Daniele de Aguiar Maia
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro, Brazil
- Postgraduate Program in Animal Biology, Institute of Biology, Federal Rural University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Jeronimo Alencar
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro, Brazil
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37
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Dos Santos Silva J, Lopes CM, Guimarães AÉ, De Mello CF, Alencar J. Diversity of Mosquitoes At the Itatiaia National Park, State of Rio De Janeiro, Brazil. J Am Mosq Control Assoc 2017; 33:270-275. [PMID: 29369024 DOI: 10.2987/17-6671.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A temporal observational study was conducted with the aim of characterizing Culicidae richness, diversity, abundance, and species similarity in fragments of Atlantic Forest within the Itatiaia National Park, state of Rio de Janeiro, Brazil. A total of 31 mosquito species were collected in 2 sampling stations, during the day and night, and the abundance index and dominance coefficient for each species were calculated. The results showed that the culicid density was higher during the day, and the time preference was directly influenced by the climate variables analyzed, which acted as limiting factors for mosquito occurrence. The mosquito fauna at the Itatiaia National Park presented high richness, including some epidemiologically important species: Anopheles cruzii, Haemagogus leucocelaenus, Aedes scapularis, and Sabethes identicus. Studies of this region supply information on biodiversity, and consequently help to understand epidemiological aspects of potential pathogen vector species.
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Mello CF, Santos-Mallet JR, Tátila-Ferreira A, Alencar J. Comparing the egg ultrastructure of three Psorophora ferox (Diptera: Culicidae) populations. BRAZ J BIOL 2017; 78:505-508. [PMID: 29091117 DOI: 10.1590/1519-6984.171829] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 03/28/2017] [Indexed: 11/22/2022] Open
Abstract
Characterising the external morphology of mosquito eggs is important, since it facilitates the identification of material from breeding sites and contributes to the understanding of species biology and group systematics. Therefore, was to compare eggs from different Psorophora ferox populations using scanning electron microscopy (SEM). Eggs were obtained from adult female of Ps. ferox collected in the Poços das Antas Biological Reserve (Reserva Biológica de Poços das Antas, Rio de Janeiro, Brazil). From each female, one portion of eggs (n = 5) was reared for identification purposes, and the second portion (n = 10) was examined using SEM for morphometric analysis. The egg morphology was then compared to that of eggs from Ps. ferox populations in Florida (USA) and Arena (Trinidad). The exochorion ornamentation of the populations differs considerably in the morphology of the tubercles of the chorionic cells, external chorionic reticulum, micropylar collar, and micropyle.
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Affiliation(s)
- C F Mello
- Diptera Laboratory, Oswaldo Cruz Institute - FIOCRUZ, Avenida Brasil, n. 4365, Manguinhos, CEP 21040-900, Rio de Janeiro, RJ, Brazil.,Postgraduate Program on Animal Biology, Institute of Biology, Federal Rural University of Rio de Janeiro - UFRRJ, Rd BR 465, Km 7, CEP 23897-000, Seropédica, RJ, Brazil
| | - J R Santos-Mallet
- Interdisciplinary Entomological Surveillance Laboratory in Diptera and Hemiptera, Oswaldo Cruz Institute - FIOCRUZ, Avenida Brasil, n. 4365, Manguinhos, CEP 21040-900, Rio de Janeiro, RJ, Brazil
| | - A Tátila-Ferreira
- Diptera Laboratory, Oswaldo Cruz Institute - FIOCRUZ, Avenida Brasil, n. 4365, Manguinhos, CEP 21040-900, Rio de Janeiro, RJ, Brazil.,Postgraduate Program on Animal Biology, Institute of Biology, Federal Rural University of Rio de Janeiro - UFRRJ, Rd BR 465, Km 7, CEP 23897-000, Seropédica, RJ, Brazil
| | - J Alencar
- Diptera Laboratory, Oswaldo Cruz Institute - FIOCRUZ, Avenida Brasil, n. 4365, Manguinhos, CEP 21040-900, Rio de Janeiro, RJ, Brazil
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Tátila-Ferreira A, Maia DDA, de Abreu FVS, Rodrigues WC, Alencar J. Oviposition behavior of Haemagogus leucocelaenus (Diptera: culicidae), a vector of wild yellow fever in Brazil. Rev Inst Med Trop Sao Paulo 2017; 59:e60. [PMID: 28793027 PMCID: PMC5553946 DOI: 10.1590/s1678-9946201759060] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 03/31/2017] [Indexed: 11/22/2022] Open
Abstract
Haemagogus leucocelaenus, which is considered a major vector of wild yellow fever, exhibits acrodendrophilic habits and mainly deposits its eggs in treeholes and bamboo internodes. The selection of nursery sites is essential in the life history and reproductive success of mosquitoes. The present work investigated the preferred oviposition height and period of Hg. leucocelaenus in an Atlantic forest area in Rio de Janeiro. Sampling was performed using oviposition traps that were placed on plant material at 0, 2, 4, 6, and 8 m above the ground, from August 2015 to July 2016. Eggs were more abundant during October and May, and the height of traps placement had no significant effect on the eggs number indicating that Hg. leucocelaenus explores different levels of forest habitats, a behavior that may favor the transmission of pathogens among arboreal animals including primates and humans. The findings of the present study are discussed from an ecological and epidemiological point of view.
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Affiliation(s)
- Aline Tátila-Ferreira
- Instituto Oswaldo Cruz (FIOCRUZ), Laboratório de Diptera, Rio de
Janeiro, Rio de Janeiro, Brazil
- Universidade Federal Rural do Rio de Janeiro, Instituto de Biologia,
Programa de Pós Graduação em Biologia Animal, Seropédica, Rio de Janeiro, Brazil
| | - Daniele de Aguiar Maia
- Instituto Oswaldo Cruz (FIOCRUZ), Laboratório de Diptera, Rio de
Janeiro, Rio de Janeiro, Brazil
| | - Filipe Vieira Santos de Abreu
- Instituto Oswaldo Cruz (FIOCRUZ), Laboratório de Transmissores e
Hematozoários , Rio de Janeiro , Rio de Janeiro , Brazil
- Instituto Federal do Norte de Minas Gerais , Salinas , Minas Gerais ,
Brazil
| | | | - Jeronimo Alencar
- Instituto Oswaldo Cruz (FIOCRUZ), Laboratório de Diptera, Rio de
Janeiro, Rio de Janeiro, Brazil
- Entomologistas do Brasil, EntomoBrasilis, Vassouras, Rio de Janeiro,
Brazil
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Alencar J, Pacheco J, Dos Santos Silva J, Mello CF, Guimarães AÉ. Biology of Psorophora albigenu Under Laboratory Conditions. J Am Mosq Control Assoc 2017; 33:64-66. [PMID: 28388327 DOI: 10.2987/16-6615.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The present study investigates the effect of multiple immersions on Psorophora albigenu eggs and their development cycle under laboratory conditions. Engorged Ps. albigenu specimens were captured in January 2011 around the Transpantaneira Park Road, Mato Grosso, Brazil, using CO2-baited Centers for Disease Control and Prevention light traps. Psorophora albigenu eggs (n = 1274) were subjected to immersion, with a hatching rate between 49% and 73%. The Williams average showed a peak of 29% hatched eggs in the 3rd immersion; after 4-5 immersions, the effect of additional immersions was generally negligible. The average cycle for both males and females was 5.68 ± 1.00 days. This short development time from the egg stage to adult emergence followed the pattern seen in other species of the genus Psorophora.
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Alencar J, Mello CFD, Barbosa LS, Gil-Santana HR, Maia DDA, Marcondes CB, Silva JDS. Diversity of yellow fever mosquito vectors in the Atlantic Forest of Rio de Janeiro, Brazil. Rev Soc Bras Med Trop 2017; 49:351-6. [PMID: 27384833 DOI: 10.1590/0037-8682-0438-2015] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Accepted: 04/20/2016] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION Environmental modifications caused by human activities have led to changes in mosquito vector populations, and sylvatic species have adapted to breeding in urban areas. METHODS Mosquitoes were collected using ovitraps in three sampling sites in the Atlantic Forest in the State of Rio de Janeiro, Brazil. RESULTS We collected 2,162 Culicidae specimens. Haemagogus janthinomys and Haemagogus leucocelaenus, both sylvatic yellow fever virus vectors, were the most common species found. CONCLUSION There is a potential for the transmission of arboviruses in and around these natural reserves. Therefore, it is necessary to maintain entomological surveillance programs in the region.
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Affiliation(s)
- Jeronimo Alencar
- Laboratório de Diptera, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brasil
| | - Cecilia Ferreira de Mello
- Laboratório de Diptera, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brasil.,Programa de Pós-graduação Stricto Sensu em Biologia Animal, Instituto de Biologia, Universidade Federal Rural do Rio de Janeiro, Seropédica, Rio de Janeiro, Brasil
| | - Leandro Silva Barbosa
- Departamento de Entomologia, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brasil
| | - Hélcio Reinaldo Gil-Santana
- Laboratório de Diptera, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brasil
| | - Daniele de Aguiar Maia
- Laboratório de Diptera, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brasil
| | - Carlos Brisola Marcondes
- Laboratório de Entomologia Médica, Departamento de Microbiologia Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brasil
| | - Júlia Dos Santos Silva
- Laboratório Interdisciplinar de Vigilância Entomológica em Diptera e Hemiptera, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brasil
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Araki AS, Maia DA, Gil-Santana HR, de Mello CF, Martins ADJ, Alencar J. Variation in Mitochondrial Cytochrome c Oxidase I DNA Can Successfully Identify Culex (Melanoconion) pedroi (Diptera: Culicidae) and Culex (Melanoconion) ribeirensis (Diptera: Culicidae). J Med Entomol 2017; 54:485-488. [PMID: 28011729 DOI: 10.1093/jme/tjw197] [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] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 10/24/2016] [Indexed: 06/06/2023]
Abstract
Culex (Melanoconion) pedroiSirivanakarn & Belkin 1980 and Culex (Melanoconion) ribeirensisForattini & Sallum 1985 are two morphologically very similar species of the Pedroi subgroup of mosquitoes in the Spissipes section of the subgenus Melanoconion of the genus Culex L. 1758. We carried out an analysis of the mitochondrial cytochrome c oxidase I (COI) DNA variation between these two species. The recent observation of sympatric coexistence in a forested area of Rio de Janeiro State (Brazil) triggered the need to validate these two species previously identified based on morphology. We concluded that the COI is a useful tool for identification of Cx. pedroi and Cx. ribeirensis.
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Affiliation(s)
- A S Araki
- Laboratório de Biologia Molecular de Insetos, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | - D A Maia
- Laboratório de Diptera, Instituto Oswaldo Cruz, Av. Brasil, 4365, Rio de Janeiro, RJ, 21040-360, Brazil (; ; ; )
| | - H R Gil-Santana
- Laboratório de Diptera, Instituto Oswaldo Cruz, Av. Brasil, 4365, Rio de Janeiro, RJ, 21040-360, Brazil (; ; ; )
| | - C F de Mello
- Laboratório de Diptera, Instituto Oswaldo Cruz, Av. Brasil, 4365, Rio de Janeiro, RJ, 21040-360, Brazil (; ; ; )
- Programa de Pós-graduação em Biologia Animal, Universidade Federal Rural do Rio de Janeiro, Brazil
| | - A de J Martins
- Laboratório de Fisiologia e Controle de Artrópodes Vetores, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | - J Alencar
- Laboratório de Diptera, Instituto Oswaldo Cruz, Av. Brasil, 4365, Rio de Janeiro, RJ, 21040-360, Brazil (; ; ; )
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Alencar J, de Mello CF, Gil-Santana HR, da Silva CS, Sarmento JS, de La Fuente ALC. Phenotypic Plasticity In Response To Seasonal Variation In Populations of Culex (Melanoconion) Bastagarius. J Am Mosq Control Assoc 2016; 32:333-336. [PMID: 28206857 DOI: 10.2987/16-6569.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The present study aimed to determine the effects of seasonal variation on phenotypic variation in Culex bastagarius, using geometric morphometric analysis based on wing shape and size. Samples were collected in the Guapiaçu Ecological Reserve, in Rio de Janeiro, Brazil. Mosquitoes were captured once every 2 months (December 2012-January 2014) using light traps. The results of geometric morphometric analysis revealed variations in wing size; however, variability was not evident in wing shape. The present study provides novel data regarding phenotypic plasticity of Cx. bastagarius that have been scarcely addressed in the past.
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Alencar J, de Mello CF, Serra-Freire NM, Guimarães AÉ, Gil-Santana HR, Gleiser RM. Biodiversity and Temporal Distribution of Immature Culicidae in the Atlantic Forest, Rio de Janeiro State, Brazil. PLoS One 2016; 11:e0159240. [PMID: 27404496 PMCID: PMC4942056 DOI: 10.1371/journal.pone.0159240] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Accepted: 06/29/2016] [Indexed: 11/19/2022] Open
Abstract
To increase the knowledge of biodiversity and identify larval habitats used by immature mosquitoes in the Atlantic Forest, we conducted a study in areas with various stages of preservation within the Guapiaçu Ecological Reserve in Cachoeiras de Macacu, Rio de Janeiro state. The Culicidae fauna were sampled during February, April, June, August, October, and December 2012; February, March, April, May, June, August, October, and December 2013; and January and March 2014. Immature mosquitoes were collected with dippers and suction tubes (mouth aspirators). Over the sampling period, 2697 larvae of 56 species were collected, some of which are recognized vectors of human diseases. The larval mosquito community found in artificial habitats, temporary ground water, and phytotelmata differed between sites, except for the mosquito fauna in bromeliads, which were almost 80% similar. Species segregation was more evident between larval habitats than between sites. Culex usquatus was the dominant species and colonized the highest number of larval habitats. The artificial larval habitats found in REGUA were colonized by a great diversity of species and high abundance as well, thus human artifacts left by the public in the area that collect water may promote an increase in mosquito populations. Among the species collected, some are known or suspected vectors of pathogens to humans and/or veterinary relevance, and their medical relevance is discussed.
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Affiliation(s)
- Jeronimo Alencar
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro, Brazil
| | - Cecília Ferreira de Mello
- Diptera Laboratory, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro, Brazil
- Postgraduate Program on Animal Biology, Institute of Biology, Federal Rural University of Rio de Janeiro, Seropédica, RJ, Brazil
| | - Nicolau Maués Serra-Freire
- National Reference Laboratory on Rickettsioses Vectors, Oswaldo Cruz Institute (Fiocruz), Rio de Janeiro, Brazil
| | | | | | - Raquel M. Gleiser
- Centro de Relevamiento y Evaluación de Recursos Agrícolas y Naturales-Instituto Multidisciplinario de Biología Vegetal (Consejo Nacional de Investigaciones Científicas y Técnicas—Universidad Nacional de Córdoba, CONICET-UNC), Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina
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Alencar J, de Mello CF, Gil-Santana HR, Guimarães AÉ, de Almeida SAS, Gleiser RM. Vertical oviposition activity of mosquitoes in the Atlantic Forest of Brazil with emphasis on the sylvan vector, Haemagogus leucocelaenus (Diptera: Culicidae). J Vector Ecol 2016; 41:18-26. [PMID: 27232120 DOI: 10.1111/jvec.12189] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 08/24/2015] [Indexed: 06/05/2023]
Abstract
This study aimed to assess the vertical patterns of oviposition and temporal changes in the distribution of mosquito species in an area of the Atlantic Forest in Rio de Janeiro State, Brazil, and in particular, the behavior and oviposition of potential yellow fever virus vectors. Mosquito samples were collected from the Ecological Reserve Guapiaçu (REGUA, Brazil), which includes a somewhat disturbed forest, with a large diversity of plants and animals. In all, 5,458 specimens (ten species from seven genera) were collected. Haemagogus leucocelaenus was the most frequently captured species, representing 73% of the specimens collected. Species richness and diversity were the highest in the samples collected from the ground-level ovitraps and decreased with height. Species composition also differed significantly among heights. The largest species differences were detected between ovitraps set at the ground level and those set at 7 m and 9 m; Hg. leucocelaenus, Limatus durhamii, and Limatus paraensis contributed most to these differences. Sampling month and climatic variables had significant effects on species richness and diversity. Species diversity and richness decreased with height, suggesting that the conditions for mosquito breeding are more favorable closer to the ground. Species composition also showed vertical differences.
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Affiliation(s)
- Jeronimo Alencar
- Laboratório de Diptera, Instituto Oswaldo Cruz (Fiocruz), Av. Brasil 4365, ZIP: 21040-360 Manguinhos, Rio de Janeiro, Brazil.
| | - Cecilia Ferreira de Mello
- Laboratório de Diptera, Instituto Oswaldo Cruz (Fiocruz), Av. Brasil 4365, ZIP: 21040-360 Manguinhos, Rio de Janeiro, Brazil
- Programa de Pós-graduação em Biologia Animal, Instituto de Biologia, Universidade Federal Rural do Rio de Janeiro, Seropédica, Rio de Janeiro, Brazil
| | - Hélcio R Gil-Santana
- Laboratório de Diptera, Instituto Oswaldo Cruz (Fiocruz), Av. Brasil 4365, ZIP: 21040-360 Manguinhos, Rio de Janeiro, Brazil
| | - Anthony Érico Guimarães
- Laboratório de Diptera, Instituto Oswaldo Cruz (Fiocruz), Av. Brasil 4365, ZIP: 21040-360 Manguinhos, Rio de Janeiro, Brazil
| | - Sergio Antonio Silva de Almeida
- Laboratório de Diptera, Instituto Oswaldo Cruz (Fiocruz), Av. Brasil 4365, ZIP: 21040-360 Manguinhos, Rio de Janeiro, Brazil
- Programa de Pós-graduação em Biologia Animal, Instituto de Biologia, Universidade Federal Rural do Rio de Janeiro, Seropédica, Rio de Janeiro, Brazil
| | - Raquel M Gleiser
- Centro de Relevamiento y Evaluación de Recursos Agrícolas y Naturales-Instituto Multidisciplinario de Biología Vegetal (Consejo Nacional de Investigaciones Científicas y Técnicas-Universidad Nacional de Córdoba, Facultad de Ciencias Agropecuarias, Av. Valparaíso Sn (5016) and Cátedra de Ecología, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Av. Vélez Sársfield 299, Córdoba, Argentina
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Alencar J, Gil-Santana HR. Taxonomical and biological notes on Sabethes (Peytonulus) fabricii Lane & Cerqueira (Diptera: Culicidae). BRAZ J BIOL 2015; 75:S192-5. [PMID: 26602339 DOI: 10.1590/1519-6984.09614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 07/09/2014] [Indexed: 11/22/2022] Open
Abstract
Morphological features that remained uncertain in previous identification keys and descriptions of Sabethes fabricii were evaluated based on species type material and two recently collected males. As a result, the following features of Sa. fabricii should be considered: proboscis with a white ventral spot beyond the middle and variably enlarged to the apex, possibly spatulate in males; setae over root of wing yellowish and may be occasionally brownish, mainly in their basal portion; and proctiger ending in four teeth. Additionally, the first record of bamboo as a natural breeding site for Sa. fabricii as well as the first register of this species in the state of Minas Gerais, Brazil are reported here.
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Affiliation(s)
- J Alencar
- Laboratório de Diptera, Instituto Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - H R Gil-Santana
- Laboratório de Diptera, Instituto Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
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Alencar J, Mello CFD, Gil-Santana HR, Giupponi APDL, Araújo AN, Lorosa ES, Guimarães AÉ, Silva JDS. Feeding Patterns of Mosquitoes (Diptera: Culicidae) in the Atlantic Forest, Rio de Janeiro, Brazil. J Med Entomol 2015; 52:783-788. [PMID: 26336238 DOI: 10.1093/jme/tjv098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Accepted: 06/19/2015] [Indexed: 06/05/2023]
Abstract
The stomach contents of culicids from the Atlantic Forest in Rio de Janeiro state, Brazil, were analyzed using the precipitin technique to evaluate the feeding patterns of the species. Sampling was performed from February 2012 to December 2013, using CO2-baited Centers for Disease Control and Prevention traps to catch mosquitoes from 15 00 to 07 00 hours. The following antisera were used: bird, rodent, opossum, human, horse, capybara, lizard, and frog. Of the 325 adult bloodfed females caught and analyzed, 273 (84.0%) reacted in the precipitin test. The percentage of specimens with a positive reaction to a single antiserum included bird (39.2%), rodent (22.5%), opossum (13.2%), capybara (6.6%), horse (5.7%), frog (6.2%), human (4.0%), and lizard (2.6%). The specimens that reacted positively against more than one blood source (46) most frequently presented the following combinations: bird + rodent and bird + frog (17.4%), followed by bird + human (13.0%). The predominance of positive results for birds suggested that the avian-rich environment might have influenced the feeding behavior of the culicids.
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Affiliation(s)
- Jeronimo Alencar
- Laboratório de Diptera, Instituto Oswaldo Cruz (FIOCRUZ), Av. Brasil 4365, zip code 21040-360, Manguinhos, Rio de Janeiro, Brasil.
| | - Cecília Ferreira de Mello
- Laboratório de Diptera, Instituto Oswaldo Cruz (FIOCRUZ), Av. Brasil 4365, zip code 21040-360, Manguinhos, Rio de Janeiro, Brasil
| | - Hélcio R Gil-Santana
- Laboratório de Diptera, Instituto Oswaldo Cruz (FIOCRUZ), Av. Brasil 4365, zip code 21040-360, Manguinhos, Rio de Janeiro, Brasil
| | - Alessandro Ponce de Leão Giupponi
- Laboratório de Referência Nacional em Vetores das Riquetsioses, Instituto Oswaldo Cruz (FIOCRUZ), Av., Brasil 4365, zip code 21040-360, Manguinhos, Rio de Janeiro, Brasil
| | - Andressa Nunes Araújo
- Laboratório de Diptera, Instituto Oswaldo Cruz (FIOCRUZ), Av. Brasil 4365, zip code 21040-360, Manguinhos, Rio de Janeiro, Brasil. Programa de Pós-graduação em Biologia Animal, Instituto de Biologia, Universidade Federal Rural do Rio de Janeiro, BR-465, Km 7, zip code: 23890-000, Seropédica, Rio de Janeiro, Brasil
| | - Elias Seixas Lorosa
- Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Instituto Oswaldo Cruz (FIOCRUZ), Av., Brasil 4365, zip code 21040-360, Manguinhos, Rio de Janeiro, Brasil
| | - Anthony Érico Guimarães
- Laboratório de Diptera, Instituto Oswaldo Cruz (FIOCRUZ), Av. Brasil 4365, zip code 21040-360, Manguinhos, Rio de Janeiro, Brasil
| | - Júlia Dos Santos Silva
- Laboratório Interdisciplinar de Vigilância Entomológica em Diptera e Hemiptera, Instituto Oswaldo Cruz (FIOCRUZ), Av., Brasil 4365, zip code 21040-360, Manguinhos, Rio de Janeiro, Brasil
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Alencar J, de Mello CF, Guimarães AÉ, Gil-Santana HR, Silva JDS, Santos- Mallet JR, Gleiser RM. Culicidae community composition and temporal dynamics in Guapiaçu Ecological Reserve, Cachoeiras de Macacu, Rio de Janeiro, Brazil. PLoS One 2015; 10:e0122268. [PMID: 25815724 PMCID: PMC4376767 DOI: 10.1371/journal.pone.0122268] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2014] [Accepted: 02/16/2015] [Indexed: 11/18/2022] Open
Abstract
A temporal observational study was conducted of the Culicidae fauna in a remnant area of Atlantic Forest within a private reserve (Guapiaçu Ecological Reserve-REGUA) presenting typical vegetation cover of dense rain forest, with some patches recovering a floristic composition similar to that of the original community. Research was carried out to analyze the influence of climatic factors (mean monthly temperature, rainfall, and air relative humidity) on the temporal dynamics of the mosquito communities that occur in the reserve. The completeness of the mosquito inventory was assessed with individual-based rarefaction-extrapolation curves. Differences in species composition between sites and months were tested with PERMANOVA. True diversities of orders 0, 1, and 2 (effective numbers) were estimated and compared between sites, months, and years. Multiple stepwise regressions were used to assess relationships between climatic variables, measures of diversity, and abundances of the most common species. There were significant interactive effects between year and site on measures of diversity. However, diversity estimates showed little variation among months, and these were weakly correlated with climatic variables. Abundances of the most common species were significantly related to temperature or relative humidity, but not rainfall. The presence of mosquito species known to be vectors of human diseases combined with an intermittent flow of visitors to the study area suggests there is a risk of disease transmission that warrants further monitoring.
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Affiliation(s)
- Jeronimo Alencar
- Instituto Oswaldo Cruz (Fiocruz), Laboratório de Diptera, Manguinhos, Rio de Janeiro, Brazil
- * E-mail: (JA); (RMG)
| | | | - Anthony Érico Guimarães
- Instituto Oswaldo Cruz (Fiocruz), Laboratório de Diptera, Manguinhos, Rio de Janeiro, Brazil
| | - Hélcio R. Gil-Santana
- Instituto Oswaldo Cruz (Fiocruz), Laboratório de Diptera, Manguinhos, Rio de Janeiro, Brazil
| | - Júlia dos Santos Silva
- Instituto Oswaldo Cruz (Fiocruz), Laboratório de Transmissores de Leishmanioses, Manguinhos, Rio de Janeiro, Brazil
| | - Jacenir R. Santos- Mallet
- Instituto Oswaldo Cruz (Fiocruz), Laboratório de Transmissores de Leishmanioses, Manguinhos, Rio de Janeiro, Brazil
| | - Raquel M. Gleiser
- Centro de Relevamiento y Evaluación de Recursos Agrícolas y Naturales-Instituto Multidisciplinario de Biología Vegetal (Consejo Nacional de Investigaciones Científicas y Técnicas—Universidad Nacinal de Córdoba, CONICET-UNC), Facultad de Ciencias Agropecuarias, and Cátedra de Ecología, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina
- * E-mail: (JA); (RMG)
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Gil-Santana HR, Alencar J. The correct type localities of three species of Sabethini. J Am Mosq Control Assoc 2015; 31:104-106. [PMID: 25843184 DOI: 10.2987/14-6455.1] [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] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The correct type localities were noted for the following mosquito species: 1) Sabethes fabricii, municipality of Angra dos Reis, state of Rio de Janeiro, Brazil; 2) Sa. soperi 1942 , municipality of Nova Iguaçu, state of Rio de Janeiro, Brazil; and 3) Wyeomyia finlayi 1942 , Xerém, in the municipality of Duque de Caxias, state of Rio de Janeiro, Brazil.
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Affiliation(s)
- Hélcio R Gil-Santana
- Laboratório de Diptera, Instituto Oswaldo Cruz, Avenida Brasil 4365, Manguinhos, 21040-360 Rio de Janeiro, Brazil
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Silva JDS, Souto Couri M, de Leão Giupponi AP, Alencar J. Mosquito fauna of the Guapiaçu Ecological Reserve, Cachoeiras de Macacu, Rio de Janeiro, Brazil, collected under the influence of different color CDC light traps. J Vector Ecol 2014; 39:384-394. [PMID: 25424268 DOI: 10.1111/jvec.12114] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2014] [Accepted: 08/11/2014] [Indexed: 06/04/2023]
Abstract
The objective of the present study was to identify mosquito fauna and to evaluate whether different light bulb colors influence the attraction of light traps in the Guapiaçu Ecological Reserve. Samples were obtained monthly during the period of February, 2012 to January, 2013. Centers for Disease Control (CDC) light traps with incandescent light bulbs and LED (ultraviolet, blue, green, and red) bulbs were utilized. In total, 8,170 specimens were captured, including 59 species. The presence of Anopheles nimbus (Theobald 1902) and Orthopodomyia fascipes Coquillet 1906 were recorded for the first time in the state of Rio de Janeiro. The green LED trap attracted the highest number of specimens and presented the highest diversity and mosquito average. The blue and green LED traps attracted the highest number of species. However, the differences between lights were not significant. The most common species were Coquillettidia juxtamansonia (Chagas 1907), Culex declarator Dyar and Knab 1906, and Culex ribeirensis Forattini and Sallum 1985.
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Affiliation(s)
- Júlia dos Santos Silva
- Departamento de Entomologia, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brasil; Laboratório de Transmissores de Leishmanioses, Instituto Oswaldo Cruz/FIOCRUZ, Rio de Janeiro, Rio de Janeiro, Brasil.
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