Zika virus is arriving at the American continent

Levy-Blitchtein, Saul; Valle-Mendoza, Juana del

doi:10.1016/j.apjtm.2016.07.030

Cited by 12 publications

(11 citation statements)

References 21 publications

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“…Both the Asian tiger mosquito Aedes albopictus (Skuse) and the yellow fever mosquito Aedes aegypti (Linnaeus) are highly invasive mosquito species of medical importance [1,2]. They can transmit several arboviral pathogens, which are the causative agents of diseases such as dengue, chikungunya, yellow fever, and Zika [3]. For instance, an estimated annual 390 million infections with dengue viruses including 96 million symptomatic cases were recorded in recent decades [4].…”

Section: Introductionmentioning

confidence: 99%

Assessment of a Novel Adult Mass-Rearing Cage for Aedes albopictus (Skuse) and Anopheles arabiensis (Patton)

Maïga

Mamaï

Somda

et al. 2020

Insects

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Successful implementation of the sterile insect technique (SIT) against Aedes albopictus and Anopheles arabiensis relies on a continuous supply of sterile males. To meet this requirement, optimization of the mass-rearing techniques is needed. This study, therefore, aims to assess a new mass-rearing cage (MRC) in terms of egg production efficiency and egg hatch rate (quality). In addition, adult survival was evaluated based on a cage adult-index for Ae. albopictus. Moreover, the cage’s suitability for use in mass An. arabiensis egg production was compared to that of the FAO/IAEA Anopheles reference cage. In Ae. albopictus rearing, the new MRC produced 1,112,110 eggs per cage following six blood meals, with minimum loss of eggs in the egging water. Furthermore, the adult index gave a good proxy of daily mortality rates in Ae. albopictus. In An. arabiensis rearing, about 130,000 eggs per egg batch were collected both from the new and the reference MRC. These findings suggest that the new MRC prototype is efficient in terms of egg production and can be used for mass-rearing in SIT programs targeting Ae. albopictus as well as An. arabiensis. The adult index was also positively validated for the detection of unusual mortality rates in Ae. albopictus mass-rearing facilities. Overall, the new MRC has shown several advantages; however, further improvements are necessary to minimize escapes during the egg collection processes.

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Section: Introductionmentioning

confidence: 99%

Assessment of a Novel Adult Mass-Rearing Cage for Aedes albopictus (Skuse) and Anopheles arabiensis (Patton)

Maïga

Mamaï

Somda

et al. 2020

Insects

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“…Aedes aegypti (Linnaeus), also called the yellow fever mosquito and originating from Africa, is a highly invasive, medically important mosquito species that has received a considerable increase in attention after being linked to the Zika outbreak in Brazil in 2015 [19]. Both species transmit several arboviral diseases including dengue, chikungunya, yellow fever, and Zika [37]. Dengue alone is estimated to infect 390 million people per year, causing 96 million cases with clinical manifestations [11].…”

Section: Introductionmentioning

confidence: 99%

Demonstration of resistance to satyrization behavior in Aedes aegypti from La Réunion island

et al. 2020

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Aedes aegypti and Aedes albopictus are competent vectors of arboviruses such as dengue and chikungunya viruses which co-exist in some areas, including La Réunion island, Indian Ocean. A type of reproductive interference called satyrization has been described in sympatric species where dominant species mating fails to produce hybrids and thus reduces the fitness and tends to control the spread of the other species. Here, we investigated satyrization in laboratory experiments to provide insights on the potential impact on Ae. aegypti of a control campaign including a sterile insect technique component against Ae. albopictus. Different mating crosses were used to test sympatric, conspecific-interspecific and allopatric effects of irradiated and non-irradiated male Ae. albopictus on female Ae. aegypti, including in a situation of skewed male ratio. Our results suggest that there was only a low level of satyrization between sympatric populations of Ae. aegypti and Ae. albopictus colonized from La Réunion island. A male Ae. albopictus to female Ae. aegypti ratio of 3:1 did not increase the level of satyrization. Female Ae. aegypti previously mated to male Ae. albopictus were not prevented from being inseminated by conspecific males. A satyrization effect was not seen between allopatric Ae. albopictus and Ae. aegypti strains from La Réunion Island either. The tested Ae. aegypti strain from La Réunion island has therefore developed full resistance to satyrization and so releasing sterile male Ae. albopictus may not suppress Ae. aegypti populations if an overflooding of irradiated male Ae. albopictus leads to similar results. The management strategy of two competent species in a sympatric area is discussed.

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“…Since 2015, ZIKV has become an increasing threat to Peru as four neighboring countries have reported endemic cases of this disease. [ 8 , 10 , 11 ]. However, until January 2016, the national health report has not identified any cases of ZIKV since its epidemiological alert was issued in October 2015 [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

Emerging and reemerging arboviruses: A new threat in Eastern Peru

et al. 2017

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BackgroundArboviral diseases are one of the most common causes of acute febrile illness (AFI) and a significant health problem in South America. In Peru, laboratory etiologic identification of these infections occurs in less than 50% of cases, leading to underdiagnoses of important emerging arboviruses.AimTo assess the prevalence of the Dengue (DENV), Oropouche (OROV), Chikungunya (CHIKV), Mayaro (MAYV) and Zika (ZIKV) viruses in patients with acute febrile illness from Puerto Maldonado (Peru).MethodologySerum samples were obtained from patients with AFI during January 2016 to March 2016. A total of 139 specimens were analyzed for the presence of DENV, OROV, CHIKV, MAYV, and ZIKV using polymerase chain reaction (PCR).ResultsCHIKV in 9.4% and OROV in 8.6% were the most prevalent arboviruses, followed by DENV and ZIKV, with a prevalence of 6.5% and 5%, respectively. Among all patients, the most common symptoms accompanying fever were headaches 79.9%, muscle pain 65.5% and joint pain 63.3%.ConclusionsDuring this short 3-month period, 4 arboviruses were detected by PCR, CHIKV and OROV being the most common arboviruses in Puerto Maldonado (Peru). Thus, it is crucial to include OROV detection in the national health surveillance. Furthermore, the etiologic clinical diagnosis of arboviral infections is not possible due to the low specificity of symptoms; therefore an increase of cases confirmed by molecular diagnostic methods will enhance arboviral surveillance in Peru.

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Zika virus is arriving at the American continent

Cited by 12 publications

References 21 publications

Assessment of a Novel Adult Mass-Rearing Cage for Aedes albopictus (Skuse) and Anopheles arabiensis (Patton)

Assessment of a Novel Adult Mass-Rearing Cage for Aedes albopictus (Skuse) and Anopheles arabiensis (Patton)

Demonstration of resistance to satyrization behavior in Aedes aegypti from La Réunion island

Emerging and reemerging arboviruses: A new threat in Eastern Peru

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