Control of Chagas Disease

Yamagata, Yoichi; Nakagawa, Jun

doi:10.1016/s0065-308x(05)61004-4

Cited by 172 publications

(75 citation statements)

References 37 publications

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“…To control Chagas disease, it is necessary to prevent parasite transmission by its two main mechanisms (vectorial and transfusional) and to complement this prevention with a secondary level of prevention in terms of medical and social attention for infected people. The key elements to such a programme, which has been proven successful, have been previously described by several authors (Schofield & Dias 1999, Dias et al 2002, WHO 2002, Moncayo 2003, Guhl et al 2005b, Yamagata & Nakagawa 2006.…”

Section: Vectorial Controlmentioning

confidence: 99%

Sylvatic triatominae: a new challenge in vector control transmission

Guhl

Pinto

Aguilera

2009

Mem. Inst. Oswaldo Cruz

123

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infestans, T. dimidiata and T. brasiliensis).The other species are less efficient vectors and are more limited in their geographic distribution, except for P. megistus (WHO 2007).The T. cruzi transmission rate is influenced by many factors, including insect density, the reproductive frequency of T. cruzi, the possibility of insect interactions with humans or other important reservoirs, their longevity, human and reservoir susceptibility to infection, vector and reservoir distribution related to human populations, vector and reservoir infection rates and the duration of parasitaemia (Schofield 1994). Vectorial controlDifferent from autochthonous vector species, domiciliated species such as T. infestans in the Southern Cone and R. prolixus in Central America are considered to be introduced species that have become adapted to human habitat due to their passive transport by human migration over time. They show a high degree of susceptibility to pyrethroid insecticides.When it is known that vectors have become domiciliated and are actively responsible for transmission, spraying residual action insecticides is not questioned, given that the insecticides represent a means of immediate control to alleviate the suffering of inhabitants who have been in contact with vector insects within the last 6-8 months. Residual action insecticides are not permanent. After the product's residual action time has passed, a second spraying cycle is necessary. This, in turn, is temporary, and it is possible for the house to become reinfested once again. This is when control programmes must establish an entomological surveillance component to impede re-infestation efforts, especially by adventitious sylvatic species.It is clear that using a particular control method does not exclude using another one. Chemical control must complement other efforts such as improving rural housing, managing the environment and ordering the peridomiciliary area where autochthonous vector insect species are frequently found.A series of standards and stages in the technical and operational levels must be followed consistently for the control programme to be effective. To control Chagas disease, it is necessary to prevent parasite transmission by its two main mechanisms (vectorial and transfusional) and to complement this prevention with a secondary level of prevention in terms of medical and social attention for infected people. The key elements to such a programme, which has been proven successful, have been previously described by several authors (Schofield &

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Section: Vectorial Controlmentioning

confidence: 99%

Sylvatic triatominae: a new challenge in vector control transmission

Guhl

Pinto

Aguilera

2009

Mem. Inst. Oswaldo Cruz

123

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“…La enfermedad de Chagas se caracteriza por ser una parasitosis zoonótica de gran importancia para la mayoría de los países latinoamericanos, en los cuales se considera un problema de salud pública (1). Asimismo, constituye una de las enfermedades de la pobreza más importante de Latinoamérica (2,3). Entre 7 y 10 millones de personas están infectadas con T. cruzi y se presentan, aproximadamente, 50.000 nuevos casos anualmente; ocurre en áreas rurales pobres y más recientemente se ha observado un aumento importante en las áreas urbanas y periurbanas (2,4).…”

Section: Discussionunclassified

“…Asimismo, constituye una de las enfermedades de la pobreza más importante de Latinoamérica (2,3). Entre 7 y 10 millones de personas están infectadas con T. cruzi y se presentan, aproximadamente, 50.000 nuevos casos anualmente; ocurre en áreas rurales pobres y más recientemente se ha observado un aumento importante en las áreas urbanas y periurbanas (2,4). El riesgo de transmisión se ha reducido con las medidas de control de la enfermedad y de su vector, y con la tamización en los bancos de sangre en Latinoamérica, gracias a iniciativas como las del Cono Sur, los países andinos y Centroamérica (5).…”

Section: Discussionunclassified

Seroprevalencia de la infección por Trypanosoma cruzi en Canis familiaris del estado Sucre, Venezuela

et al. 2012

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Contribución de los autores:Mariolga Berrizbeitia: coordinadora del proyecto a nivel regional, realización del análisis estadístico y escritura del manuscrito. Juan Luis Concepción: coordinador nacional del proyecto, revisión y aprobación del manuscrito. Valentina Cazorla: realización de los ensayos, contribución en la escritura del manuscrito. Jessicca Rodríguez: realización de los ensayos. Ana Cáceres y Wilfredo Quiñones: asesoría en la elaboración del proyecto, revisión del análisis estadístico. . No significant statistic association was found between the T. cruzi infection in dogs and the evaluated epidemiological variables: hunting dogs that slept oudoors roaming freely in the populated center, sex of the animal and eating habits. The T. cruzi infection was associated to the age of canines, being significantly higher in the group of 0 to 3 years, when compared with older dogs. ARTÍCULO ORIGINAL

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“…L'existence de ce test aurait également pour effet de « booster » la recherche de nouvelles molécules plus actives et mieux tolérées. Contrairement à ce qu'on a l'habitude de laisser entendre, celle-ci n'a jamais cessé [1], mais elle n'a pas donné de résultat concret jusqu'à présent et elle n'est guère encouragée par la diminution spectaculaire de l'incidence et de la prévalence de la maladie enregistrées ces 20 dernières années suite à la mise en place des programmes de lutte antivectorielle [10,37].…”

Section: Traitements Longs Coûteux Et Difficilement Accessiblesunclassified

“…Chaque jour pourtant, et cela depuis plusieurs dizaines d'années, ces travaux donnent lieu à une bonne douzaine de publications scientifiques de niveau international. De même, ne sont ni rappelées ni même citées les grandes initiatives régionales (INCOSUR pour les pays du Cône Sud, IPA pour les pays du Pacte andin, IPCA pour les pays d'Amérique centrale) prises successivement, sous l'égide de la PAHO, pour contrôler, voire éliminer, la transmission vectorielle [14,24,28,37]. Pourtant, grâce à ces initiatives, la prévalence de la maladie a été réduite en moins de 20 ans de plus de 50 % et son incidence de pratiquement 90 % [26].…”

Section: La Voie Oraleunclassified

Non, la maladie de Chagas n’est pas le nouveau sida des Amériques !

Pays

2012

Bull. Soc. Pathol. Exot.

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Résumé Maladie de Chagas et sida ne sauraient être associés, voire confondus sous un même vocable sans distordre la réalité, comme cela a été fait dans un article médical récent intitulé : Chagas disease: "The New HIV/AIDS of the Americas". Si la maladie de Chagas, comme bien d'autres « maladies négligées », présente sur certains points, et en apparence seulement, quelques ressemblances avec le sida, elle s'en différencie en effet sur de nombreux autres qui sont essentiels. Abstract Chagas disease and AIDS: the same terminology cannot be used to associate, let alone confuse, these two diseases with one another without distorting reality, as was done in a recent Mots clés

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Control of Chagas Disease

Cited by 172 publications

References 37 publications

Sylvatic triatominae: a new challenge in vector control transmission

Sylvatic triatominae: a new challenge in vector control transmission

Seroprevalencia de la infección por Trypanosoma cruzi en Canis familiaris del estado Sucre, Venezuela

Non, la maladie de Chagas n’est pas le nouveau sida des Amériques !

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