Infection of Kissing Bugs with<i>Trypanosoma cruzi</i>, Tucson, Arizona, USA

Reisenman, Carolina E.; Lawrence, Gena G.; Guerenstein, Pablo G.; Gregory, Teresa; Dotson, Ellen M.; Hildebrand, John G.

doi:10.3201/eid1603.090648

Cited by 70 publications

(69 citation statements)

References 30 publications

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“…The mortality rates of T. rubida were low (the lowest of the 3 species studied). This finding may be one reason that T. rubida is by far the most common of the three species in virtually its entire area of distribution (Licón-Trillo 2006, Reisenman et al 2010. In contrast, the mortality rates of T. recurva were high (the highest of the three species studied).…”

Section: Discussionmentioning

confidence: 45%

The biology of three Mexican-American species of Triatominae (Hemiptera: Reduviidae): Triatoma recurva, Triatoma protracta and Triatoma rubida

Martínez-Ibarra

Paredes-González

Licón-Trillo

et al. 2012

Mem. Inst. Oswaldo Cruz

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Biological information is widely available for the 13 most common domestic triatomines (Hemiptera: Reduviidae: Triatominae) among the 30 species described in Mexico (Martínez-Ibarra et al. 2007, Salazar-Schettino et al. 2010). Information about the remaining species is scarce, primarily because these species have rarely been collected and are difficult to raise under laboratory conditions. Three of these rare species are Triatoma recurva (Stal), Triatoma protracta (Uhler) and Triatoma rubida (Uhler). Although these three species are considered to be of low epidemiological importance, specimens of at least two of these species (T. recurva and T. rubida) collected from inside human dwellings were found to be infected with Trypanosoma cruzi (Paredes-González et al. 2001, Licón-Trillo 2006, Breniere et al. 2010, Licón-Trillo et al. 2010. Studies on the behaviour of triatomine species provide a greater understanding of the habits of these insects and therefore facilitate improved decision-making regarding the priorities for vector control. To our knowledge, there has been no study of the biological parameters (life cycle and feeding and defecation behaviours) of T. recurva; in contrast, two recent studies were devoted to the examination of certain behaviours of T. protracta (Martínez-Ibarra et al. 2007, Klotz et al. 2009) and three studies focused on T. rubida (Martínez-Ibarra et al. 2005, Klotz et al. 2009, Reisenman et al. 2011. Even though the biological parameters of the two latter species have been studied previously, it is necessary to determine the particular behaviours of geographically distinct populations of the same species because it is likely that differing environmental conditions result in different behaviours for distinct populations of the same triatomine species (Licón-Trillo et al. 2010).As part of a series of studies on the biology of Mexican Triatominae, a study of the feeding and defecation behaviours and the life cycles of three Triatominae species of secondary importance in the transmission of T. cruzi to human populations in Mexico was conducted. MATERIALS AND METHODSA laboratory colony of T. recurva established in 2009 from specimens collected in Jesús María, Nayarit, Mexico, was used. A colony of T. protracta (morphologically similar to the synonymised subspecies protracta) was established in 2008 with specimens originally obtained from Caborca, Sonora, Mexico. In addition, a colony of T. rubida (morphologically similar to the synonymised subspecies uhleri) from Saucillo, Chihuahua, was included. The colonies were maintained at 25ºC ± 1ºC and 50% relative humidity (RH) ± 5% RH to match the typical habitat conditions of the three species. The colonies were fed on immobilised and anaesthetised New Zealand rabbits on a weekly basis. These rabbits were anaesthetised following the Norma Official Mexicana regulations with 0.25 mL/kg of ketamine delivered intramuscularly (SAGARPA 1999

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Section: Discussionmentioning

confidence: 45%

The biology of three Mexican-American species of Triatominae (Hemiptera: Reduviidae): Triatoma recurva, Triatoma protracta and Triatoma rubida

Martínez-Ibarra

Paredes-González

Licón-Trillo

et al. 2012

Mem. Inst. Oswaldo Cruz

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“…Triatoma protracta has been reported in the states of Baja California Norte, Chihuahua, Coahuila, Durango, Nuevo Leon, Tamaulipas, Sinaloa, Sonora, San Luis Potosi, and Zacatecas and in several states in the southwestern United States (Arizona, California, Nevada, Texas, New Mexico, and Utah), with T. cruzi infections less than 19%. 1,9,10,20,21 Triatoma brailovskyi has been proposed to be a member of a specific complex Dimidiata by using morphologic marker analysis; this complex includes T. dimidiata, T. hegneri, T. ryckmani and T. gomeznunezi. 22 On the basis of internal transcribed spacer 2 (ITS-2) sequences, the species T. gerstaeckeri and T. mexicana have been included in the Phyllosoma complex, and T. bolivari has been included in the Rubrofasciata complex.…”

Section: Introductionmentioning

confidence: 99%

Genetic Variation of North American Triatomines (Insecta: Hemiptera: Reduviidae): Initial Divergence between Species and Populations of Chagas Disease Vector

Espinoza¹,

Martínez-Ibarra²,

Villalobos³

et al. 2013

The American Journal of Tropical Medicine and Hygiene

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Abstract. The triatomines vectors of Trypanosoma cruzi are principal factors in acquiring Chagas disease. For this reason, increased knowledge of domestic transmission of T. cruzi and control of its insect vectors is necessary. To contribute to genetic knowledge of North America Triatominae species, we studied genetic variations and conducted phylogenetic analysis of different triatomines species of epidemiologic importance. Our analysis showed high genetic variations between different geographic populations of Triatoma mexicana, Meccus longipennis, M. mazzottii, M. picturatus, and T. dimidiata species, suggested initial divergence, hybridation, or classifications problems. In contrast, T. gerstaeckeri, T. bolivari, and M. pallidipennis populations showed few genetics variations. Analysis using cytochrome B and internal transcribed spacer 2 gene sequences indicated that T. bolivari is closely related to the Rubrofasciata complex and not to T. dimidiata. Triatoma brailovskyi and T. gerstaeckeri showed a close relationship with Dimidiata and Phyllosoma complexes.

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“…A recent study in Arizona showed that a much higher infection rate was found in T. rubida (Uhler) compared with rates in historical surveys, which suggests temporal variability with regards to infection rates. 6 Large-scale surveys of T. cruzi infection rates of local T. protracta populations in California have not been conducted since the 1980s. To test for the potential of autochthonous Chagas disease transmission in southern California, we measured infection rates with T. cruzi among two populations of T. protracta bordering the large population centers of Los Angeles and San Diego.…”

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confidence: 99%

Infection Rates of Triatoma protracta (Uhler) with Trypanosoma cruzi in Southern California and Molecular Identification of Trypanosomes

Hwang

Zhang²,

Maslov³

et al. 2010

The American Journal of Tropical Medicine and Hygiene

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Abstract. We report Trypanosoma cruzi infection rates of the native kissing bug Triatoma protracta in southern California. The rates are within the historically reported range, but differ significantly between the two sites (19% in Escondido and 36% in Glendora). Identification of T. cruzi in T. protracta was conducted for the first time by using partial 18S ribosomal RNA and 24Sα ribosomal RNA sequences. Incongruence of 24Sα ribosomal RNA phylogeny with current T. cruzi genotype classification supports non-clonality of some T. cruzi genotypes.

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Infection of Kissing Bugs withTrypanosoma cruzi, Tucson, Arizona, USA

Abstract: A survey of triatomine insects found that 41.5% were infected with the causative agent of Chagas disease.

Cited by 70 publications

References 30 publications

The biology of three Mexican-American species of Triatominae (Hemiptera: Reduviidae): Triatoma recurva, Triatoma protracta and Triatoma rubida

The biology of three Mexican-American species of Triatominae (Hemiptera: Reduviidae): Triatoma recurva, Triatoma protracta and Triatoma rubida

Genetic Variation of North American Triatomines (Insecta: Hemiptera: Reduviidae): Initial Divergence between Species and Populations of Chagas Disease Vector

Infection Rates of Triatoma protracta (Uhler) with Trypanosoma cruzi in Southern California and Molecular Identification of Trypanosomes

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