Triatoma patagonica (Hemiptera, Reduviidae), a New Host for Triatoma virus

Rozas-Dennis, Gabriela S.; Cazzaniga, Néstor J.; Guérin, Diego M.A.

doi:10.1590/s0074-02762002000300028

Cited by 13 publications

(7 citation statements)

References 11 publications

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“…T. sordida is a new host for TrV, increasing the number of susceptible species to nine; Rodnius prolixus, T. delpontei, T. infestans, T. pallidipennis, T. platensis, and T. rubrovaria by viral intrahemocelic injection (Muscio, 1988), and by per os ingestion of viral particles in T. infestans (Muscio, 1988;Rozas-Dennis and Cazzaniga, 2000), T. patagonica (Rozas-Dennis et al, 2002), and T. guasayana (Rozas-Dennis and Cazzaniga, 1997). Schaub (1990a) reported that B. triatomae infected T. infestans are characterized by having a soft, pale brown cuticle when compared with healthy B. triatomae insects which have a harder, dark brown cuticle.…”

Section: Discussionmentioning

confidence: 99%

Prevalence and distribution of parasites and pathogens of Triatominae from Argentina, with emphasis on Triatoma infestans and Triatoma virus TrV

Martí

Echeverría

Susevich

et al. 2009

Journal of Invertebrate Pathology

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Section: Discussionmentioning

confidence: 99%

Prevalence and distribution of parasites and pathogens of Triatominae from Argentina, with emphasis on Triatoma infestans and Triatoma virus TrV

Martí

Echeverría

Susevich

et al. 2009

Journal of Invertebrate Pathology

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“…TrV can also infect natural populations of T. sordida and several experimental populations of triatomines as well [24]. Viral replication takes place in the midgut epithelium cells of triatomines, causing many deleterious sublethal effects in T. infestans and T. patagonica colonies, such as reduction of the longevity, increase of the developmental time, a decrease in both fecundity and fertility of eggs, and even a cumulative mortality higher than 97% [16,25-28]. …”

Section: Introductionmentioning

confidence: 99%

Inoculation of Triatoma Virus (Dicistroviridae: Cripavirus) elicits a non-infective immune response in mice

et al. 2013

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BackgroundDicistroviridae is a new family of small, non-enveloped, +ssRNA viruses pathogenic to both beneficial arthropods and insect pests. Little is known about the dicistrovirus replication mechanism or gene function, and any knowledge on these subjects comes mainly from comparisons with mammalian viruses from the Picornaviridae family. Due to its peculiar genome organization and characteristics of the per os viral transmission route, dicistroviruses make good candidates for use as biopesticides. Triatoma virus (TrV) is a pathogen of Triatoma infestans (Hemiptera: Reduviidae), one of the main vectors of the human trypanosomiasis disease called Chagas disease. TrV was postulated as a potential control agent against Chagas’ vectors. Although there is no evidence that TrV nor other dicistroviruses replicate in species outside the Insecta class, the innocuousness of these viruses in humans and animals needs to be ascertained.MethodsIn this study, RT-PCR and ELISA were used to detect the infectivity of this virus in Mus musculus BALB/c mice.ResultsIn this study we have observed that there is no significant difference in the ratio IgG2a/IgG1 in sera from animals inoculated with TrV when compared with non-inoculated animals or mice inoculated only with non-infective TrV protein capsids.ConclusionsWe conclude that, under our experimental conditions, TrV is unable to replicate in mice. This study constitutes the first test to evaluate the infectivity of a dicistrovirus in a vertebrate animal model.

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“…The majority of current studies on infectious diseases have been aimed at the elucidation of viral virulence using experimental animals or viral gene function using cell lines in vitro, but in a few case, researchers focused on wild animal itself [13,14]. In this paper, we describe basic information about bats as follows: genetic background, character of the immunological factors and the physiological function.…”

Section: Introductionmentioning

confidence: 99%

Biological characters of bats in relation to natural reservoir of emerging viruses

Omatsu

Watanabe

Akashi

et al. 2007

Comparative Immunology, Microbiology and Infectious Diseases

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Many investigators focused on bats (Chiroptera) for their specific character, i.e. echolocation system, phylogenic tree, food practice and unique reproduction. However, most of basic information about the vital functions related to anti-viral activity has been unclear. For evaluating some animals as a natural reservoir or host of infectious pathogens, it is necessary that not only their immune system but also their biology, the environment of their living, food habits and physiological features should be clarified and they should be analyzed from these multi-view points. The majority of current studies on infectious diseases have been conducted for the elucidation of viral virulence using experimental animals or viral gene function in vitro, but in a few case, researchers focused on wild animal itself. In this paper, we described basic information about bats as follows; genetic background, character of the immunological factors, histological character of immune organs, the physiological function and sensitivity of bat cells to viral infection.

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Triatoma patagonica (Hemiptera, Reduviidae), a New Host for Triatoma virus

Abstract: Previous authors demonstrated that

Cited by 13 publications

References 11 publications

Prevalence and distribution of parasites and pathogens of Triatominae from Argentina, with emphasis on Triatoma infestans and Triatoma virus TrV

Prevalence and distribution of parasites and pathogens of Triatominae from Argentina, with emphasis on Triatoma infestans and Triatoma virus TrV

Inoculation of Triatoma Virus (Dicistroviridae: Cripavirus) elicits a non-infective immune response in mice

Biological characters of bats in relation to natural reservoir of emerging viruses

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