scholarly journals Surveillance entomologique des Culicoides (Diptera: Ceratopogonidae), vecteurs de la fièvre catarrhale en Tunisie

Author(s):  
Soufien Sghaier ◽  
Salah Hammami ◽  
H. Hammami ◽  
A. Dkhil ◽  
Jean Claude Delecolle

Bluetongue (BT) is an arboviral disease that affects ruminants. BT virus is transmitted by biting midges of the genus Culicoides (Diptera: Ceratopogonidae). Since 1999, BTV outbreaks have occurred in Tunisia and two serotypes (BTV-2 and BTV-1) have been involved in 2000 and 2006, respectively. Entomological surveillance has been implemented in Tunisia with the aim to study population dynamics of C. imicola and other potential vectors. Two-night catches of midges per site were performed monthly from June 2006 through July 2008 on 14 sites through­out the country. A total of 11,582 Culicoides specimens, col­lected from 336 light traps, comprised 25 species of which seven were identified for the first time in Tunisia. The seasonal occur­rence of these species is described.

Check List ◽  
2015 ◽  
Vol 11 (4) ◽  
pp. 1676
Author(s):  
Emanuelle De Sousa Farias ◽  
Antonio Marques Pereira Júnior ◽  
Jéssica Feijó Almeida ◽  
Felipe Arley Costa Pessoa ◽  
Jansen Fernandes Medeiros

Some species of biting midges are vectors of pathogens that cause disease in vertebrates, including humans. The aim of this study was to survey the biting midge fauna in Tefé, Amazonas, Brazil. Culicoides were collected using HP light traps during January, February, and April 2013. Midges collected included one species from the genus Lectoconops that bites humans. A total of 248 Culicoides individuals were collected, representing 19 species from two subgenera (Haematomyidium and Hoffmania) and four informal species groups (carpenteri, leoni, fluvialis, and reticulatus). Twelve individuals of L. brasiliensis were also collected, and this is the first record of L. brasiliensis in Amazonas. Three species of Culicoides were also recorded for the first time in Amazonas, including Culicoides aitkeni, C. glabellus and C. ocumarensis. The most abundant species were C. hylas (81 individuals), and C. foxi (27). The Culicoides fauna in Tefé is diverse, and proven vectors such as C. paraensis and C. insignis were found.


2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Marlit Karen Strobel ◽  
Maria Eveslage ◽  
Helen Ann Köster ◽  
Mareike Möllers ◽  
Janina Braun ◽  
...  

AbstractObjectivesThe aim of this study was to introduce cervical strain elastography to objectively assess the cervical tissue transformation process during induction of labour (IOL) and to evaluate the potential of cervical elastography as a predictor of successful IOL.MethodsA total of 41 patients with full-term pregnancies elected for an IOL were included. Vaginal ultrasound with measurement of cervical length and elastography and assessment of the Bishop Score were performed before and 3 h after IOL. The measured parameters were correlated to the outcome of IOL and the time until delivery.ResultsWe observed an association between the strain pattern and the value of the strain ratio 3 h after IOL and a successful IOL (p=0.0343 and p=0.0342, respectively) which can be well demonstrated by the results after 48 h. In our study population the cervical length and the Bishop Score did not prove to be relevant parameters for the prediction of a successful IOL.ConclusionsWe demonstrated for the first time that the cervical elastography pattern after the first prostaglandine application can help predict the outcome of IOL.


Insects ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 366
Author(s):  
Raisa Rodrigues Santos Rios ◽  
Maria Clara Alves Santarém ◽  
Karlos Antônio Lisboa Ribeiro Júnior ◽  
Breno Araujo de Melo ◽  
Sybelle Georgia Mesquita da Silva ◽  
...  

The species of the Culicoides genus are hematophagous, and some of them are vectors of important human and animal diseases. This group of insects is distributed worldwide, varying according to local species. Knowledge of the geographic distribution of specific species is crucial for the development and implementation of control strategies. The aim of this work was to investigate the occurrence of Culicoides in the state of Alagoas in northeast Brazil. Midges were captured with CDC light traps, and their identification and morphological analyses were performed by the Ceratopogonidae Collection of the Oswaldo Cruz Foundation (FIOCRUZ/CCER) in Rio de Janeiro, Brazil. Morphological analyses were performed using the key to Culicoides from the guttatus group and comparison with other deposited specimens. DNA sequencing, genetic analysis and comparison with sequences in the Genbank database, confirmed the identification of the flies as Culicoides insignis. This was the first formal report of C. insignis being found in Alagoas.


1990 ◽  
Vol 38 (1) ◽  
pp. 25 ◽  
Author(s):  
DH Cybinski ◽  
MJ Muller

Blood samples were collected regularly from two sentinel herds of cattle in northern and southern Queensland between 1979 and 1985. From 2660 samples, virus isolation attempts using baby hamster kidney (BHK21) and Aedes albopictus (AA) tissue cultures and suckling mice produced 308 viruses of which 243 (79%) were in the Palyam subgroup of orbiviruses. Mosquitoes and biting midges were collected at the southern sentinel herd site in January-February 1984 and processed for virus isolation in BHK2l and AA tissue cultures and by intrathoracic inoculation of Ae. aegypti mosquitoes. Totals of 14 338 midges of four species in 156 pools, and 9030 mosquitoes of 27 species in 232 pools, were processed and yielded 59 isolations. Of the 35 viruses isolated from Culicoides brevitarsis, 17 were members of the Palyam subgroup. Bovine ephemeral fever (BEF) virus was isolated once from Anopheles bancroftii, once from C. brevitarsis and 17 times from cattle. Akabane virus was isolated for the first time from C. wadai, as well as a further 10 times from C. brevitarsis and 20 times from cattle. Other viruses isolated from cattle included bluetongue serotype 1, and serotypes 5, 6 and 7 of epizootic hemorrhagic disease of deer (EHD). A new BEF group virus, tentatively called Oak Vale, was isolated nine times from Culex edwardsi mosquitoes. Of the orbiviruses, those in the Palyam subgroup were isolated almost exclusively in BHK2l tissue cultures but those in the bluetongue and EHD subgroups were isolated almost exclusively in AA cell cultures or after passage through Ae. aegypti. Of 22 rhabdovirus isolations from blood and insects (BEF, Kimberley and Tibrogargan), 16 were made only in AA cell cultures or after passage through Ae. aegypti.


Author(s):  
Diego Morales Viteri ◽  
Manuela Herrera-Varela ◽  
Maribel Albuja ◽  
Cristina Quiroga ◽  
Gloria Diaz ◽  
...  

Abstract The increase in malaria transmission in the Amazon region motivated vector control units of the Ministry of Health of Ecuador and Peru to investigate Anopheles (Diptera: Culicidae) species present in transmission hotspots. Mosquitoes were collected using prokopack aspirators and CDC light traps (Ecuador) and human landing catch in Peru. In Ecuador, 84 Anopheles were captured from Pastaza, Morona Santiago, and Orellana provinces and identified morphologically [An. (An.) apicimacula Dyar and Knab, An. (Nys.) near benarrochi, An. (Nys.) near oswaldoi, An. (Nys.) near strodei, An. (An.) nimbus (Theobald, 1902), and An. (Nyssorhynchus) sp.]. In Peru, 1,150 Anopheles were collected in Andoas District. A subsample of 166 specimens was stored under silica and identified as An. near oswaldoi, An. darlingi, and An. (An.) mattogrossensis Lutz and Neiva. COI barcode region sequences were obtained for 137 adults (107 from Peru, 30 from Ecuador) identified by ITS2 PCR-RFLP as An. benarrochi Gabaldon, Cova Garcia, and Lopez and retained in the final analysis. Haplotypes from the present study plus An. benarrochi B GenBank sequences grouped separately from Brazilian An. benarrochi GenBank sequences by 44 mutation steps, indicating that the present study specimens were An. benarrochi B. Our findings confirm the presence of An. benarrochi B in Ecuador and reported here for the first time from the Amazonian provinces of Orellana and Morona Santiago. Furthermore, we confirm that the species collected in Andoas District in the Datem del Maranon Province, Peru, is An. benarrochi B, and we observed that it is highly anthropophilic. Overall, the known distribution of An. benarrochi B has been extended and includes southern Colombia, much of Peru and eastern Ecuador.


2020 ◽  
Vol 2 (2) ◽  
pp. 72-78
Author(s):  
A.S. Sazhnev ◽  
◽  
V.V. Anikin ◽  

The article presents the results of research of the using light traps (luminescent lamp Actinic 6W) for collecting Coleoptera in the Saratov city. Entomological material was collected by the second author in the period from 1.06 to 2.10.2019. In 2019, 52 species of Coleoptera of 22 families from different ecological groups were recorded. A relatively high proportion of adventitious species remains in 17.3– 30.7% of the presented fauna was presented. For two years the 14 species of alien and cryptogenic Coleoptera species were observed, that is 24.5% of the adventive fauna of the Saratov Province. Among invasive species Attagenus smirnovi, Stegobium paniceum, Atomaria lewisi, Harmonia axyridis, Gnatocerus cornutus, and Orchestes steppensis were record for the first time in 2019. It to use bringing on light as one of the available and low-cost ways to identify alien and cryptogenic organisms in urban areas is recommended.


2017 ◽  
Vol 5 (3) ◽  
pp. 371
Author(s):  
Sari Priyanti

ABSTRACTCervical cancer was non communicable desease that worries the public and causes an increase mortality in women. One of the first sign causes of cervical cancer is occourrence of Leucorrhoe. The incidence of Leucorrhoe in women Indonesia by 90% of which >75% of women experience once of leucorrhoe and experience ≥ 2 times by 25%. Leucorrhoe should not be considered an ordinary thing because can be caused to itchy on genetalia, pain during sexsual, infection  can be caused odema on genetalia, hot like burned on vagina even the impact if not treated promptly will caused infertility and cancer. Aims of study was to analyze factors of influenced on Leucorrhoe incident. Design of study was cross sectional study. Population was women of childbearing age who use contraceptives in the karang jeruk village, Jatirejo sub district, Mojokerto district in March of 2017. Sample in this study was 33 people. Data analyze with logistic regresion. Result of study showed contraceptive and sexsual activity has significant influenced with leucorrhoe (PR = 10.000; 95% CI= 1,732-57,722 dan PR=8,750; 95% CI=1,466-52,232). Suggestion: should be married and have first sexual intercourse for the first time at the age of  ≥ 20 years, limit the number of children not more than 2 as the greater the number of children the greater the risk of Leucorrhoe, and not using hormonal contraception for a along time that more than 2 years. Keywords: contraceptive,sexsual activity, leucorrhoe


2021 ◽  
Vol 35 ◽  
pp. 00023
Author(s):  
Nikolay Vinokurov

The work provides data on the dynamics of the abundance of 205 taxa from 19 genera: Cleptes, Colpopyga, Elampus, Omalus, Philoctetes, Pseudomalus, Hedychridium, Hedychrum, Holopyga, Chrysidea, Chrysis, Euchroeus, Chrysura, Pseudochrysis, Spinolia, Spinolia, including species rare and new for the fauna of the North Caucasus and Russia. By the nature of the population dynamics, five groups of cuckoo wasps were identified: spring – represented by 7 species from 4 genera; spring-summer – 76 species from 10 genera; summer – 113 species from 16 genera; summer-autumn – 4 species from 2 genera and spring-summer-autumn – 5 species from 3 genus. According to the duration of flight, eurychronous species of cuckoo wasps were identified, which are found throughout the season from spring to autumn; mesochronous – the years of which affect the end of May and summer months and stenochronous – confined to a short period of time. Eurychronic accounted for 2.4%, mesochronous 24.9%, stenochronic 72.7%. The number of generations of cuckoo wasps is related to the dynamics of the number of the host. In the mountains, the peaks of activity shift towards the middle of summer, most species have one peak of activity; due to the frequent changes in weather conditions in the mountains, the phenological characteristics of the cuckoo wasps and their hosts do not coincide in terms with the lowland populations and the periods of activity can be extended in time. Phenological characteristics of rare and new species for the fauna of the North Caucasus and Russia are presented for the first time. The data obtained expand the understanding of the biodiversity and dynamics of the abundance of cuckoo wasps in the North Caucasus and can be used for environmental protection measures and rational nature management in the south of Russia.


2013 ◽  
Vol 6 (1-2) ◽  
pp. 61-69 ◽  
Author(s):  
Viktor Baranov ◽  
Evgeny E. Perkovsky

Non-biting midges (Diptera: Chironomidae) are recorded in the Sakhalinian amber (Russia) for the first time.Pseudorthocladius zherikhinisp. n. is described in an extant genus of Orthocladiinae also known from the Baltic amber.Antillocladussp. (Orthocladiinae) is the first representative of this genus recorded from fossil resins.


2014 ◽  
Vol 9 (8) ◽  
pp. 1934578X1400900
Author(s):  
Mikel González ◽  
Sergio López ◽  
Gloria Rosell ◽  
Arturo Goldarazena ◽  
Angel Guerrero

The chemical profile of the cuticle and internal tissues of four species of Culicoides have been studied for the first time by gas chromatography-mass spectrometry. The chemical composition of females of C. obsoletus s.l. and C. lupicaris, vectors of diverse viral diseases, have been compared with that of other biting midges, such as C. kibunensis and C. fascipennis, and the non-biting midge Forcipomyia bipunctata. A total of 61 compounds belonging to 8 major chemical classes were identified in cuticular and internal tissues in n-hexane extracts. The compounds include carboxylic acids (CAs) (C6-C20), with C16:0, C16:1 and C18:1 being dominant, branched hydrocarbons (C29 to C38 mono/di/trimethylalkanes), linear hydrocarbons (C15 to C33, mainly odd chain carbons), terpenes (geranylacetone, geranylgeraniol acetate, squalene, terpenic alcohol), steroids (cholesterol), aldehydes (C9-C10 and even chain C20 to C30), and esters. The chemical profile depends on the species and whether the extracts are external (cuticle) or internal. The contents of linear and branched hydrocarbons and aldehydes was high in cuticular extracts but practically absent in internal tissues, which were, in contrast, rich in CAs, terpenes and steroids. The results are discussed and compared with other Culicoides midges and mosquito-related species.


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