scholarly journals Aedes aegypti and Aedes albopictus (Diptera: Culicidae): coexistence and susceptibility to temephos, in municipalities with occurrence of dengue and differentiated characteristics of urbanization

2011 ◽  
Vol 44 (3) ◽  
pp. 300-305 ◽  
Author(s):  
Josiane Somariva Prophiro ◽  
Onilda Santos Silva ◽  
Jonny Edward Duque Luna ◽  
Carla Fernanda Piccoli ◽  
Luiz Alberto Kanis ◽  
...  
Keyword(s):  
Data Analysis ◽  
Aedes Aegypti ◽  
Aedes Albopictus ◽  
The State ◽  
Santa Catarina ◽  
Index Of Dispersion ◽  
Susceptibility Status

INTRODUCTION: The aim of the present study was to verify the coexistence between Aedes aegypti and Aedes albopictus populations in municipalities of the States of Paraná and Santa Catarina with different urbanization profiles where dengue occurs and evaluate their susceptibility to the organophosphate temephos. METHODS: The number of eggs per ovitrap were counted and incubated for hatching to identify the species. Data analysis of the populations was conducted to determine randomness and aggregation, using the variance-to-mean ratio (index of dispersion). Susceptibility to temephos was evaluated by estimation of the resistance ratios RR50 and RR95. Aedes aegypti samples were compared with the population Rockefeller and Aedes albopictus samples were compared with a population from the State of Santa Catarina and with the Rockefeller population. RESULTS: Coexistence between Aedes aegypti and Aedes albopictus and the aggregation of their eggs were observed at all the sites analyzed in the State of Paraná. CONCLUSIONS: All the Aedes aegypti populations from the State of Parana showed alteration in susceptibility status to the organophosphate temephos, revealing incipient resistance. Similarly, all the Aedes albopictus populations (States of Paraná and Santa Catarina) presented survival when exposed to the organophosphate temephos.

scholarly journals Regional nursing council of Santa Catarina (1975-1986): importance for the profession

2015 ◽  
Vol 24 (3) ◽  
pp. 654-661 ◽  
Author(s):  
Maria Lígia dos Reis Bellaguarda ◽  
Maria Itayra Padilha ◽  
Denise Elvira Pires de Pires
Keyword(s):  
Content Analysis ◽  
Data Analysis ◽  
Qualitative Study ◽  
Oral History ◽  
Time Frame ◽  
The State ◽  
Santa Catarina ◽  
Theoretical Support ◽  
Supervision Process ◽  
Establishment Process

Socio-historical and qualitative study aiming to rescue the establishment process of the Regional Nursing Council of Santa Catarina and characterize its importance to the profession. It presents its theoretical support on the ideas of Eliot Freidson and New History. In the method, oral history and documentary research were used, involving eight nurses who implemented the representative organization in the referred time frame. The principles of Content Analysis guided data analysis, which were organized according to the mandates of the Regional Nursing Council of Santa Catarina from 1975 to 1986. During the implantation of the professional Council, there was a fragile notion about the objectives of the council and a slow supervision process. It is concluded that the importance of the establishment of the profession Council was known by the leaders and little understood by all professionals in the state.

scholarly journals A Challenge for a Unique Dengue Vector Control Programme: Assessment of the Spatial Variation of Insecticide Resistance Status amongst Aedes aegypti and Aedes albopictus Populations in Gampaha District, Sri Lanka

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Rasika Dalpadado ◽  
Nayana Gunathilaka ◽  
Deepika Amarasinghe ◽  
Lahiru Udayanaga
Keyword(s):  
Sri Lanka ◽  
Aedes Aegypti ◽  
Insecticide Resistance ◽  
Vector Control ◽  
Aedes Albopictus ◽  
Rural Areas ◽  
Medical Officer ◽  
Public Health Problem ◽  
World Health ◽  
Susceptibility Status

Background. To date, dengue is considered an important public health problem in Sri Lanka. Irrational use of insecticides without evidence-based applications has primed the development of resistance in mosquito vectors. Method. The present study investigated the resistance status of Aedes aegypti and Aedes albopictus to commonly used insecticides in three selected Medical Officer of Health (MOH) areas (i.e., Attanagalla, Dompe, and Negombo) in Gampaha District, Western Province of Sri Lanka. Entomological surveys were performed using ovitraps and larval collections. Larval bioassays were carried out to determine the LC50, LC90, and LC95 and susceptibility status for organophosphate temephos, whereas adult bioassays were performed to test the 0.03% deltamethrin and 0.8% malathion susceptibility. Results. The study revealed that the temephos concentrations required to control Ae. aegypti (13.7-17.7 times) and Ae. albopictus (4.6-7.6 times) are higher than the diagnostic concentration (0.012 mg/L) proposed by the World Health Organization. The highest resistance levels were observed for both Ae. aegypti ( 14 ± 1.87 ) and Ae. albopictus ( 36 ± 1.87 ) collected from the Negombo MOH area. Therefore, the WHO recommended diagnostic concentration is no longer effective in controlling Ae. aegypti and Ae. albopictus larvae in these areas. Both the dengue vectors have evolved a high level of insecticide resistance to malathion and deltamethrin in the Gampaha District except Ae. albopictus mosquitoes in rural areas. Further, vectors in rural areas are indicated susceptible (>98%) to pyrethroids and emergence of resistance (<97%) for organophosphate insecticides. Conclusion. The results of this study warrant the vector management authorities on the proper application of insecticides and rational use in vector control. The susceptibility status of vector mosquitoes should be continuously monitored especially in dengue-endemic areas parallel to the routine surveillance programme. Further molecular studies are strongly recommended to determine the Knockdown Resistance (kdr) mutations among Aedes populations.

scholarly journals CULÍCIDOS DE RELEVANCIA MÉDICO-VETERINARIO DE JUTIAPA, GUATEMALA: 2009-2017

Biotempo ◽  
2018 ◽  
Vol 15 (1) ◽  
pp. 49-57
Author(s):  
Jaime Rodríguez-Flores ◽  
Milton Vinicio Monzón-Muñoz ◽  
Lorenzo Diéguez- Fernández ◽  
Pedro Marcelino Yax-Caxaj ◽  
José Iannacone
Keyword(s):  
Aedes Aegypti ◽  
Aedes Albopictus ◽  
Culex Quinquefasciatus ◽  
Santa Catarina

El objetivo de la investigación fue reportar las especies de culícidos registradas en el Departamento de Jutiapa, Guatemalaentre el 2009 y el 2017 asociadas con aspectos bioecológicos. Se realizó un estudio descriptivo retrospectivo mediante larevisión documental del registro de muestras del Laboratorio de Entomología de Jutiapa. Esta información es el resultadode las inspecciones realizadas dentro y en los alrededores de los domicilios tres veces al año en el 100% del universourbano y rural, lo que incluyó viviendas, terrenos baldíos y criaderos naturales. Siete géneros con 17 especies fueroncolectados. Aedes aegypti (Linnaeus, 1762), Aedes albopictus (Skuse, 1824) y Culex quinquefasciatus (Say, 1823), tuvieronlas mejores distribuciones. El Adelanto y Moyuta así como Agua Blanca, Atescatempa y Santa Catarina Mita fueron losmunicipios con las más altas variedades de especies. Se registró en el 2017 como nueva especie para el Departamento aUranotaenia sapphirina (Osten Sacken, 1868).

scholarly journals Susceptibility status of Aedes aegypti, Aedes albopictus, Culex quinquefasciatus and Anopheles subpictus to insecticide cypermethrin

2020 ◽  
Vol 575 ◽  
pp. 012003
Author(s):  
Rahmat Zarkasyi Ramadhani ◽  
Hasanuddin Ishak ◽  
Andi Zulkifli ◽  
Ayu Dwi Putri Rusman ◽  
Haniarti ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Aedes Albopictus ◽  
Culex Quinquefasciatus ◽  
Anopheles Subpictus ◽  
Susceptibility Status

scholarly journals Vectors of arboviruses in the state of São Paulo: 30 years of Aedes aegypti and Aedes albopictus

2019 ◽  
Vol 53 ◽  
pp. 84 ◽  
Author(s):  
Dalton Pereira da Fonseca Júnior ◽  
Lígia Leandro Nunes Serpa ◽  
Gerson Laurindo Barbosa ◽  
Mariza Pereira ◽  
Marcia Moreira Holcmam ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Aedes Albopictus ◽  
Larval Density ◽  
Sao Paulo ◽  
The State ◽  
Wilcoxon Test ◽  
Larval Abundance ◽  
São Paulo ◽  
Mean Temperature ◽  
The Mean

OBJECTIVE: To describe the infestation of the municipalities of São Paulo by the vectors Aedes aegypti and Aedes albopictus, characterize seasonality and analyze average temperatures and larval densities. METHODS: We used maps with information on the infestation of municipalities between 1986 and 2015. The analysis of larval density of the species by the Wilcoxon test used the Breteau index values for Ae. aegypti and Ae. albopictus obtained from the Superintendency for Endemic Diseases Control database. In the seasonal description, arithmetic means of each vector were calculated by month and year. Mean temperature analyses were presented on maps with color gradients. RESULTS: The state of São Paulo is currently almost totally infested, with co-occurrence of species in 93.64% of the municipalities. The seasonality analysis showed the first quarter as the most favorable period for larval abundance. The increase of mean temperatures in geographical areas coincided with the temporal trajectory of Ae. aegypti territorial expansion. The mean larval density found was higher for Ae. aegypti than for Ae. albopictus (p = 0.00). CONCLUSIONS: Initially, these Culicidae occupied distinct and opposing areas. Over time, however, co-occurrence showed how great their capacity for adaptation is, even in the face of different social and urban conjunctures. The increase of the mean temperature contributed to Ae. Aegypti’s geographic expansion, as well as to the clearly seasonal profile of both species. In general, larval infestation by Ae. aegypti prevailed, which evidenced its competitive superiority. These data provide a better understanding of the dynamics of arboviral transmission in the state of São Paulo and can be used in vector surveillance and control.

scholarly journals Ascogregarina taiwanensis infection in Aedes aegypti and Aedes albopictus in Santa Catarina, South Brazil

2017 ◽  
Vol 50 (2) ◽  
pp. 235-238
Author(s):  
Josiane Somariva Prophiro ◽  
Thiago Nunes Pereira ◽  
Joice Guilherme de Oliveira ◽  
Guilherme Werner Dandolini ◽  
Mario Antonio Navarro da Silva ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Aedes Albopictus ◽  
Santa Catarina ◽  
South Brazil ◽  
Ascogregarina Taiwanensis

scholarly journals Dengue virus in Aedes aegypti and Aedes albopictus in urban areas in the state of Rio Grande do Norte, Brazil: Importance of virological and entomological surveillance

PLoS ONE ◽  
2018 ◽  
Vol 13 (3) ◽  
pp. e0194108 ◽  
Author(s):  
Arlinete S. Medeiros ◽  
Diego M. P. Costa ◽  
Mário S. D. Branco ◽  
Daíse M. C. Sousa ◽  
Joelma D. Monteiro ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Dengue Virus ◽  
Aedes Albopictus ◽  
Urban Areas ◽  
Rio Grande ◽  
The State ◽  
Entomological Surveillance

scholarly journals Baseline Susceptibility Status of Florida Populations of Aedes aegypti (Diptera: Culicidae) and Aedes albopictus

2020 ◽  
Vol 57 (5) ◽  
pp. 1550-1559 ◽  
Author(s):  
Casey Parker ◽  
Daviela Ramirez ◽  
Carol Thomas ◽  
C Roxanne Connelly
Keyword(s):  
Aedes Aegypti ◽  
Aedes Albopictus ◽  
Mosquito Control ◽  
Pyrethroid Resistance ◽  
Mosquito Species ◽  
Mosquito Vectors ◽  
Product Selection ◽  
Lambda Cyhalothrin ◽  
Susceptibility Status ◽  
Methods Of Control

Abstract Resistance to insecticides used to control mosquito vectors threatens the ability of mosquito-control organizations to protect public health. Aedes aegypti (Linnaeus) and Aedes albopictus (Skuse) are invasive species widely distributed throughout Florida and have been implicated in recent epidemics of Zika, dengue, and chikungunya viruses. Knowledge of the susceptibility status of these mosquito species to pyrethroid and organophosphate active ingredients (AIs) is needed to inform product selection and treatment decisions. The susceptibility of 37 Ae. aegypti and 42 Ae. albopictus populations from Florida was assessed in response to six pyrethroid and three organophosphate AIs using the CDC bottle bioassay method. Of all bioassays completed with a pyrethroid AI, 95% for Ae. aegypti and 30% for Ae. albopictus resulted in a resistant outcome. For organophosphate AIs, ~31% of assays conducted for both species were classified as resistant. The highest frequency of susceptibility for both species was observed in response to the organophosphate AI, naled. Lambda-cyhalothrin was the only pyrethroid to result in a susceptible status for Ae. aegypti and also had the highest frequency of susceptibility for Ae. albopictus. Resistance was detected to every AI tested for both Ae. aegypti and Ae. albopictus, but there was a pronounced trend of pyrethroid resistance in Florida populations of Ae. aegypti. The results of this work provide evidence for the need to decrease reliance on pyrethroids and to implement different methods of control of Ae. aegypti in Florida.

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