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

A presença de Aedes albopictus (Skuse) em área urbana representa um risco potencial do inter-relacionamento dessa espécie de mosquito com a população. Este estudo teve como objetivo identificar as formas imaturas de Ae. albopictus encontradas nos depósitos e imóveis do município de Miguel Pereira. O estudo foi realizado no período de 12 meses, ano de 2007, em 27 locais do município de Miguel Pereira, Estado do Rio de Janeiro. As larvas encontradas foram identificadas em laboratório e a análise dos dados foi calculada pelos índices de infestação predial e índice de Breteau. Os tipos de imóveis positivos foram residências (79,44% do total); terrenos baldios (2,56%); comércios (2,56%) e outros tipos de imóveis (15,04%) para Ae. albopictus, e residências (72,72% do total); comércios (6,06%); terrenos baldios (3,03%); e outros tipos de imóveis (18,18%) para Aedes aegypti (L.). Das 3731 larvas, 3562 (95,5%) eram de Ae. albopictus e 169 (4,5%) de Ae. aegypti. O mosquito Ae. albopictus mostrou-se mais presente nos criadouros que Ae. aegypti. A média do índice de infestação predial (IFP) e índice de Breteau (IB) para Ae. albopictus foi 1,0 e 1,9 e para Ae. aegypti de 0,1 e 0,1, respectivamente. As formas imaturas mais abundantemente encontradas no Município de Miguel Pereira no ano de 2007 foram de Ae. albopictus podendo futuramente se tornar um problema de saúde pública. Incidence of Aedes albopictus (Skuse) Immature Form in Miguel Pereira, RJ, Brazil. Abstract. The presence of Aedes albopictus (Skuse) in urban areas represents a potential risk of inter-relationship of this species of mosquito with the population. This study aimed to evaluate the presence of the Ae. albopictus immature forms in deposits and building at Miguel Pereira city, Rio de Janeiro State. The study was carried in the last 12 months, 2007, in 27 locations in Miguel Pereira city. The larvae were identified in laboratory and data analysis was calculated by indicators of building infestation index and the Breteau index. The positive buildings were: residential (79.44% of total); waste land (2.56%), shopping (2.56%) and other types of buildings (15.04%) to Ae. albopictus, and homes (72.72% of total), shopping (6.06%); waste land (3.03%) and other types of buildings (18.18%) to Ae. aegypti (L.). The larvae (3731) collected, 3562 (95.5%) were Ae. albopictus and 169 (4.5%) were Ae. aegypti. The Ae. albopictus are more present in breeding that Ae. aegypti. The average rate of building infestation index (IFP) and Breteau index (IB) for Ae. albopictus was 1.0 and 1.9 and for Ae. aegypti was 0.1 and 0.1, respectively. The Ae. albopictus immature larvae forms were more abundantly found in the Miguel Pereira city in 2007; in future it may become a public health problem.

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Proporsi Larva Aedes aegypti dan Aedes albopictus, Hubungannya dengan Kejadian Demam Berdarah Dengue di Daerah Endemik Suburban Kabupaten Sleman, Yogyakarta

BALABA JURNAL LITBANG PENGENDALIAN PENYAKIT BERSUMBER BINATANG BANJARNEGARA ◽

10.22435/blb.v15i2.1800 ◽

2019 ◽

pp. 163-170

Author(s):

Bobby Fahmi Muldan Pahlevi ◽

Tri Wulandari Kesetyaningsih

Keyword(s):

Aedes Aegypti ◽

Aedes Albopictus ◽

Dengue Hemorrhagic Fever ◽

Urban Areas ◽

Endemic Area ◽

Hemorrhagic Fever ◽

Suburban Area ◽

Dengue Transmission ◽

The Relationship

Dengue Hemorrhagic Fever (DHF) is transmitted by Aedes aegypti and Ae. albopictus. Aedes aegypti chooses to live indoors and Ae. albopictus in outdoors. Aedes aegypti has been proven to play a role in dengue transmission in urban areas. It is assumed that suburbs dominated by gardens, so it is possible that Ae. albopictus acts as a vector. The study aimed to analyze the relationship between Ae. albopictus and DHF incidence in suburban area. The study was conducted in Godean, Sleman Regency. 280 ovitrap were placed indoors and outdoors at across seven villages. Each village was represented by one hamlet, so there were 40 ovitrap of each hamlet. The proportion of ovitrap containing Ae. aegypti and Ae. albopictus larvae was calculated. The results showed that Ae. aegypti larvae was more indoors (78.50%) than outdoors (21.45%) in all villages and negatively correlates with DHF (p=0.036; r=-0.776). Aedes albopictus larvae is more commonly found in gardens (80.64%) than in homes (19.36%) and does not correlate with DHF (p = 0.702). It was concluded that in suburban endemic area of Sleman Regency, Ae. aegypti larvae was more indoors and negatively correlated with DHF. Aedes albopictus larva was more in the garden and did not correlate with DHF incidence.

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Experimental study of dengue virus infection in Aedes aegypti and Aedes albopictus: A comparative analysis on susceptibility, virus transmission and reproductive success

Journal of Invertebrate Pathology ◽

10.1016/j.jip.2020.107445 ◽

2020 ◽

Vol 175 ◽

pp. 107445

Author(s):

Monika Soni ◽

Siraj A. Khan ◽

Chandra K. Bhattacharjee ◽

Prafulla Dutta

Keyword(s):

Experimental Study ◽

Comparative Analysis ◽

Reproductive Success ◽

Virus Infection ◽

Aedes Aegypti ◽

Dengue Virus ◽

Aedes Albopictus ◽

Virus Transmission ◽

Dengue Virus Infection

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PERAN GEN STRUKTURAL, GEN NON-STRUKTURAL, DAN UNTRANSLATED REGION DALAM PERAKITAN VIRUS DENGUE

JURNAL BIOMEDIK (JBM) ◽

10.35790/jbm.7.2.2015.9322 ◽

2015 ◽

Vol 7 (2) ◽

Author(s):

Meiranty C. Pangerapan ◽

Beivy J. Kolondam

Keyword(s):

Aedes Aegypti ◽

Dengue Virus ◽

Dengue Fever ◽

Aedes Albopictus ◽

Untranslated Region ◽

Rna Virus ◽

Virus Genome ◽

Interferon Response ◽

Endoplasmic Reticulum Membrane ◽

Structural Genes

Abstract: Dengue virus is a single-stranded RNA virus that belongs to Flaviviridae family. This virus causes dengue fever which is transmitted by Aedes aegypti dan Aedes albopictus. There are four serotypes of dengue virus; all of them can cause dengue fever. Understanding the genomics of dengue virus is important for research and diagnostics. The genome of dengue virus is 11 kilo-base long. It consists of 5’-untranslated region (5’-UTR), three structural genes (coding capsid protein, pre-membrane/membrane, and envelope), seven non-structural genes (coding NS1, NS2A, NS2B, NS3, NS4A, NS4B, and NS5 proteins) and 3’-UTR. Non-structural genes are encoding proteins of viral RNA replication, interferon response, viral assembly and secretion, endoplasmic reticulum membrane invagination induction, immune-mediator induction, and RNA 5’-caping.Keywords: dengue virus, genome, structural genes, non-structural genes, untranslated region.Abstrak: Virus dengue merupakan virus RNA beruntai tunggal yang termasuk dalam famili Flaviviridae. Virus ini adalah penyebab penyakit demam berdarah dengue yang ditransmisikan melalui nyamuk Aedes aegypti dan Aedes albopictus. Ada empat serotipe virus dengue yang telah dikenal secara luas yang ada semuanya dapat menimbulkan penyakit demam berdarah. Pemahaman tentang genomik virus dengue sangat penting untuk pengembangan penelitian dan juga untuk keperluan diagnostik. Genom virus dengue memiliki panjang 11 kilo basa. Genomnya tersusun atas 5’-untranslated region (5’-UTR), tiga gen struktural (mengodekan protein kapsid, premembran/membran dan amplop), tujuh gen non-struktural (mengodekan protein NS1, NS2A, NS2B, NS3, NS4A, NS4B dan NS5) dan 3’-UTR. Gen-gen non-struktural mengodekan protein untuk replikasi RNA virus, respon interferon, perakitan, sekresi partikel virus, menginduksi invaginasi membran retikulum endoplasma, induksi imunomediator dan penambahan tudung pada ujung 5’ RNA.Kata kunci: virus dengue, genom, gen struktural, gen non-struktural, untranslated region

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The Role of Vertical Transmission of Dengue Virus among Field-Captured Aedes aegypti and Aedes albopictus Mosquitoes in Peshawar, Khyber Pakhtunkhwa, Pakistan

Pakistan Journal of Zoology ◽

10.17582/journal.pjz/2017.49.3.777.784 ◽

2017 ◽

Vol 49 (3) ◽

pp. 777-784 ◽

Cited By ~ 3

Author(s):

Jehangir Khan ◽

Inamullah Khan ◽

Ijaz Ali ◽

Aqib Iqbal ◽

Muhammad Salman

Keyword(s):

Aedes Aegypti ◽

Dengue Virus ◽

Vertical Transmission ◽

Aedes Albopictus ◽

Khyber Pakhtunkhwa

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The Mosquito Immune System and the Life of Dengue Virus: What We Know and Do Not Know

Pathogens ◽

10.3390/pathogens8020077 ◽

2019 ◽

Vol 8 (2) ◽

pp. 77 ◽

Cited By ~ 2

Author(s):

Debica Mukherjee ◽

Sandeepan Das ◽

Feroza Begum ◽

Sweety Mal ◽

Upasana Ray

Keyword(s):

Innate Immunity ◽

Immune System ◽

Aedes Aegypti ◽

Dengue Virus ◽

Aedes Albopictus ◽

Blood Meal ◽

Mosquito Vector ◽

Preventive Strategies ◽

Immune Control ◽

The Family

Flaviviruses are largely transmitted to humans by their arthropod vectors such as mosquitoes or ticks. The dengue virus (DENV) is one of the members of the family Flaviviridae and is the causative agent of dengue fever. In the mosquito vector, DENV enters through viremic blood meal and replicates in the mid-gut. Newly formed virion particles circulate to various mosquito organs and get transmitted to the next host in subsequent bites. Aedes aegypti and Aedes albopictus have intricate immune control to allow DENV production at a sub-pathogenic level. In the mosquito, antimicrobial peptides (AMP) and RNA inference (RNAi) are the two main antiviral strategies used against DENV. Apart from innate immunity, mosquito resident microbes play a significant role in modulating DENV replication. In this review, we discuss different immune mechanisms and preventive strategies that act against DENV in two of its vectors: Aedes aegypti and Aedes albopictus.

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First Report of Aedes albopictus (Diptera: Culicidae) in District Mirpur, Azad Jammu and Kashmir, Pakistan

Journal of Medical Entomology ◽

10.1093/jme/tjaa202 ◽

2020 ◽

Author(s):

Aliya Jabeen ◽

Jamil A Ansari ◽

Aamer Ikram ◽

Mumtaz Ali Khan ◽

Moin Iqbal Qaisrani ◽

...

Keyword(s):

Aedes Aegypti ◽

Dengue Virus ◽

Aedes Albopictus ◽

Water Storage ◽

Northern Pakistan ◽

Jammu And Kashmir ◽

First Report ◽

Primary Vector ◽

Storage Containers ◽

Himalaya Mountains

Abstract Our article documents the presence of Aedes albopictus (Skuse) from urban and rural locations in the lower Himalaya Mountains, northern Pakistan. Larvae were collected from graveyards, junkyards, plant nurseries, parks, and houses. Used tires, bird drinking pots, and water storage containers were the most common containers used by this mosquito. In the absence of Aedes aegypti (L.) (Diptera: Culicidae), Ae. albopictus appears to be the primary vector of recent dengue virus outbreaks.

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