scholarly journals From Anonymous to Public Enemy: How Does a Mosquito Become a Feared Arbovirus Vector?

Pathogens ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 265 ◽  
Author(s):  
Didier Fontenille ◽  
Jeffrey R. Powell

The past few decades have seen the emergence of several worldwide arbovirus epidemics (chikungunya, Zika), the expansion or recrudescence of historical arboviruses (dengue, yellow fever), and the modification of the distribution area of major vector mosquitoes such as Aedes aegypti and Ae. albopictus, raising questions about the risk of appearance of new vectors and new epidemics. In this opinion piece, we review the factors that led to the emergence of yellow fever in the Americas, define the conditions for a mosquito to become a vector, analyse the recent example of the new status of Aedes albopictus from neglected mosquito to major vector, and propose some scenarios for the future.

2019 ◽  
Vol 8 (1) ◽  
pp. 1636-1641 ◽  
Author(s):  
Basile Kamgang ◽  
Marie Vazeille ◽  
Aurélie P. Yougang ◽  
Armel N. Tedjou ◽  
Theodel A. Wilson-Bahun ◽  
...  

Author(s):  
A. Drago ◽  
S. Vettore ◽  
S. Martini ◽  
M. Dutto

Aedes albopictus and Aedes aegypti are two synanthropic, anthropophilic container-breeding mosquitoes. These species are very annoying, but are also vectors of dengue, chikungunya, yellow fever, Zika, and Usutu viruses, and other pathogens. Because these mosquitoes breed very close to humans, cheap homemade methods, as alternatives to commercial insecticides, could be important for their control. Coffee being a very common beverage, the grounds extracted from used coffee capsules have been tested for their larvicidal efficacy. The grounds were extracted with either 30 ml or 70 ml of 65-70 °C water. The content of one capsule was used as a unit dose to treat the quantity of water contained in a medium sized flowerpot tray. The test provided a clear indication that at this dosage, the used coffee capsules were completely ineffective at killing the larvae of Aedes species, so this method cannot be suggested to control these mosquitoes.


2002 ◽  
Vol 35 (3) ◽  
pp. 263-265
Author(s):  
André Iwersen de São Thiago ◽  
Emil Kupek ◽  
Joaquim Alves Ferreira Neto ◽  
Paulo de Tarso São Thiago

Software for pattern recognition of the larvae of mosquitoes Aedes aegypti and Aedes albopictus, biological vectors of dengue and yellow fever, has been developed. Rapid field identification of larva using a digital camera linked to a laptop computer equipped with this software may greatly help prevention campaigns.


Science ◽  
2020 ◽  
Vol 370 (6519) ◽  
pp. 991-996
Author(s):  
Fabien Aubry ◽  
Stéphanie Dabo ◽  
Caroline Manet ◽  
Igor Filipović ◽  
Noah H. Rose ◽  
...  

The drivers and patterns of zoonotic virus emergence in the human population are poorly understood. The mosquito Aedes aegypti is a major arbovirus vector native to Africa that invaded most of the world’s tropical belt over the past four centuries, after the evolution of a “domestic” form that specialized in biting humans and breeding in water storage containers. Here, we show that human specialization and subsequent spread of A. aegypti out of Africa were accompanied by an increase in its intrinsic ability to acquire and transmit the emerging human pathogen Zika virus. Thus, the recent evolution and global expansion of A. aegypti promoted arbovirus emergence not solely through increased vector–host contact but also as a result of enhanced vector susceptibility.


2020 ◽  
Vol 76 (12) ◽  
pp. 4202-4209 ◽  
Author(s):  
Thomas L Schmidt ◽  
Jessica Chung ◽  
Anthony R Rooyen ◽  
Angus Sly ◽  
Andrew R Weeks ◽  
...  

2013 ◽  
Vol 1 (1) ◽  
Author(s):  
F. H. Tampi ◽  
J. Runtuwene ◽  
V. D. Pijoh

Abstract: Aedes spp mosquito have a huge role a vector for spreading diseases such as yellow fever, dengue fever and chikungunya. This type of mosquito thrive in an environment like a settlement. Teep village have a big potential to harbor this type of mosquito. This research is using a retrospective descriptive study that present an overall view of the density and the type of larvae based on the gathered information such as number of the houses and type of host site. There is two kind of host site one is TPA and the other is non TPA, with a figure of TPA 6 host site (28,56%) and non TPA 15 host site (71,44%). Two variety of mosquito that have been found is Aedes aegypti (57,14%) and Aedes albopictus (42,86%). Based on the mosquito density figure the result shown that House index is 12,35%, container index is 5%, Breatau index is 12,35%, and Angka Bebas Jentik is 87,64%. Aedes spp larvae  most commonly found on the non TPA host site rather than TPA host site. There is no big wedge of margin between the Aedes aegypti larvae and Aedes albopictus that have been found on Teep village. House index, Container index, Breautau index in Teep village is just above average. Keyword: Aedes spp larvae.   Abstrak: Nyamuk Aedes spp mempunyai dampak pada bidang kesehatan sebagai vektor utama penyakit demam kuning (Yellow Fever), Demam Berdarah Dengue dan Chikungunya. Nyamuk tipe ini mempunyai kebiasaan bertelur di tempat perindukan dekat dengan pemukiman masyarakat. Desa Teep merupakan salah satu desa yang berpotensial sebagai habitat dari nyamuk Aedes spp. Penelitian ini adalah penelitian survey deskriptif dan menggunakan metode cross sectional yang memaparkan gambaran kepadatan dan jenis jentik berdasarkan rumah dan Tempat Penampungan Air (TPA) yang diperiksa. Pemeriksaan jentik di rumah—rumah dilakukan pada dua jenis perindukan yaitu perindukan TPA dan perindukan non TPA. Jumlah perindukan yang positif jentik yaitu : TPA 6 perindukan (28,56%) dan non TPA 15 perindukan (71,44%). Terdapat dua varian nyamuk Aedes spp yang ditemukan yaitu jentik Aedes aegypti (57,14%) dan jentik Aedes albopictus (42,85%). Berdasarkan hasil pengukuran kepadatan jentik, didapatkan House Index (HI) sebesar 12,35 %, Container Index (CI) sebanyak 5%, Breatau Index (BI) 12,35%, dan Angka Bebas Jentik (ABI) sebanyak 87, 64%. Jentik Aedes spp lebih banyak ditemukan pada tempat perindukan nonTPA dibandingkan dengan tempat perindukan TPA. Perbandingan populasi jentik Aedes aegypti dan Aedes albopictus di Desa Teep tidak berbeda jauh. Kata kunci: Jentik Aedes spp.


Insects ◽  
2019 ◽  
Vol 10 (11) ◽  
pp. 400
Author(s):  
Hannah S. Tiffin ◽  
Steven T. Peper ◽  
Alexander N. Wilson-Fallon ◽  
Katelyn M. Haydett ◽  
Guofeng Cao ◽  
...  

The recent emergence or reemergence of various vector-borne diseases makes the knowledge of disease vectors’ presence and distribution of paramount concern for protecting national human and animal health. While several studies have modeled Aedes aegypti or Aedes albopictus distributions in the past five years, studies at a large scale can miss the complexities that contribute to a species’ distribution. Many localities in the United States have lacked or had sporadic surveillance conducted for these two species. To address these gaps in the current knowledge of Ae. aegypti and Ae. albopictus distributions in the United States, surveillance was focused on areas in Texas at the margins of their known ranges and in localities that had little or no surveillance conducted in the past. This information was used with a global database of occurrence records to create a predictive model of these two species’ distributions in the United States. Additionally, the surveillance data from Texas was used to determine the influence of new data from the margins of a species’ known range on predicted species’ suitability maps. This information is critical in determining where to focus resources for the future and continued surveillance for these two species of medical concern.


1927 ◽  
Vol 18 (2) ◽  
pp. 145-148 ◽  
Author(s):  
Lawrence H. Dunn

During the past few months the writer conducted observations to determine, first, if Aëdes aegypti preferred places of oviposition within habitations or those located outside with natural shelter near by, and, second, the distance from human habitations at which this species may breed. These investigations were carried out in, or near, the compound of the West African Yellow Fever Commission at Yaba, near Lagos, Nigeria.


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