Natural vertical transmission of dengue virus in Aedes aegypti and Aedes albopictus: a systematic review
Abstract Dengue is of great concern in various parts of the world, especially in tropical and subtropical countries where the mosquito vectors Aedes aegypti and Aedes albopictus are present. The transmission of this virus to humans, by what is known as horizontal transmission, occurs through the bit...
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| Format: | Article |
| Language: | English |
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BMC
2018-02-01
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| Series: | Parasites & Vectors |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s13071-018-2643-9 |
| _version_ | 1818381569289617408 |
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| author | Victor Henrique Ferreira-de-Lima Tamara Nunes Lima-Camara |
| author_facet | Victor Henrique Ferreira-de-Lima Tamara Nunes Lima-Camara |
| author_sort | Victor Henrique Ferreira-de-Lima |
| collection | DOAJ |
| description | Abstract Dengue is of great concern in various parts of the world, especially in tropical and subtropical countries where the mosquito vectors Aedes aegypti and Aedes albopictus are present. The transmission of this virus to humans, by what is known as horizontal transmission, occurs through the bite of infected females of one or other of the two mosquito species. Furthermore, an infected female or male parent, by what is known as vertical transmission, can transfer this arbovirus to some part of their offspring. Considering that vertical transmission may represent an important strategy for maintaining the circulation of arboviruses in nature, the verification of this phenomenon worldwide is extremely important and necessary to better understand its dynamic. In the present study, we conducted a literature review of the presence of natural vertical transmission of dengue virus in Ae. aegypti and Ae. albopictus worldwide. Searches were conducted in MEDLINE, sciELO and Lilacs and all the studies published in Portuguese, English and Spanish were read, evaluated and organized by mosquito species, serotype and the location at which the samples were collected. Forty-two studies were included in accordance with the exclusion criteria and methodology. The presence of natural vertical transmission in Ae. aegypti and Ae. albopictus was most clearly evidenced by dengue virus in endemic countries, especially in those in South America and Asia. Despite several African countries being considered endemic for dengue, there is a lack of publications on this subject on that continent, which highlights the importance of conducting studies there. Furthermore, the finding of natural vertical transmission in Ae. albopictus in countries where this species is not yet incriminated as a vector is of great concern as it demonstrates the circulation of this virus in populations of Ae. albopictus and alerts to the possibility of some other mosquito species playing a role in the transmission dynamics of this arbovirus. Parallel to this, the small number of studies of natural vertical transmission of chikungunya and Zika virus in the world may be explained by the recent entry of these arboviruses into most of the countries concerned. |
| first_indexed | 2024-12-14T02:36:40Z |
| format | Article |
| id | doaj.art-bfc3927a992e42a9b79359924bd360bd |
| institution | Directory Open Access Journal |
| issn | 1756-3305 |
| language | English |
| last_indexed | 2024-12-14T02:36:40Z |
| publishDate | 2018-02-01 |
| publisher | BMC |
| record_format | Article |
| series | Parasites & Vectors |
| spelling | doaj.art-bfc3927a992e42a9b79359924bd360bd2022-12-21T23:20:07ZengBMCParasites & Vectors1756-33052018-02-011111810.1186/s13071-018-2643-9Natural vertical transmission of dengue virus in Aedes aegypti and Aedes albopictus: a systematic reviewVictor Henrique Ferreira-de-Lima0Tamara Nunes Lima-Camara1Postgraduate Program at Institute of Tropical Medicine, University of São PauloDepartment of Epidemiology, School of Public Health, University of São PauloAbstract Dengue is of great concern in various parts of the world, especially in tropical and subtropical countries where the mosquito vectors Aedes aegypti and Aedes albopictus are present. The transmission of this virus to humans, by what is known as horizontal transmission, occurs through the bite of infected females of one or other of the two mosquito species. Furthermore, an infected female or male parent, by what is known as vertical transmission, can transfer this arbovirus to some part of their offspring. Considering that vertical transmission may represent an important strategy for maintaining the circulation of arboviruses in nature, the verification of this phenomenon worldwide is extremely important and necessary to better understand its dynamic. In the present study, we conducted a literature review of the presence of natural vertical transmission of dengue virus in Ae. aegypti and Ae. albopictus worldwide. Searches were conducted in MEDLINE, sciELO and Lilacs and all the studies published in Portuguese, English and Spanish were read, evaluated and organized by mosquito species, serotype and the location at which the samples were collected. Forty-two studies were included in accordance with the exclusion criteria and methodology. The presence of natural vertical transmission in Ae. aegypti and Ae. albopictus was most clearly evidenced by dengue virus in endemic countries, especially in those in South America and Asia. Despite several African countries being considered endemic for dengue, there is a lack of publications on this subject on that continent, which highlights the importance of conducting studies there. Furthermore, the finding of natural vertical transmission in Ae. albopictus in countries where this species is not yet incriminated as a vector is of great concern as it demonstrates the circulation of this virus in populations of Ae. albopictus and alerts to the possibility of some other mosquito species playing a role in the transmission dynamics of this arbovirus. Parallel to this, the small number of studies of natural vertical transmission of chikungunya and Zika virus in the world may be explained by the recent entry of these arboviruses into most of the countries concerned.http://link.springer.com/article/10.1186/s13071-018-2643-9Vertical transmissionDengueChikungunyaZikaAedesVectors |
| spellingShingle | Victor Henrique Ferreira-de-Lima Tamara Nunes Lima-Camara Natural vertical transmission of dengue virus in Aedes aegypti and Aedes albopictus: a systematic review Parasites & Vectors Vertical transmission Dengue Chikungunya Zika Aedes Vectors |
| title | Natural vertical transmission of dengue virus in Aedes aegypti and Aedes albopictus: a systematic review |
| title_full | Natural vertical transmission of dengue virus in Aedes aegypti and Aedes albopictus: a systematic review |
| title_fullStr | Natural vertical transmission of dengue virus in Aedes aegypti and Aedes albopictus: a systematic review |
| title_full_unstemmed | Natural vertical transmission of dengue virus in Aedes aegypti and Aedes albopictus: a systematic review |
| title_short | Natural vertical transmission of dengue virus in Aedes aegypti and Aedes albopictus: a systematic review |
| title_sort | natural vertical transmission of dengue virus in aedes aegypti and aedes albopictus a systematic review |
| topic | Vertical transmission Dengue Chikungunya Zika Aedes Vectors |
| url | http://link.springer.com/article/10.1186/s13071-018-2643-9 |
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