scholarly journals Ecosystem approaches to controlling of vector-borne diseases: dengue and Chagas disease

2009 ◽  
Vol 25 (suppl 1) ◽  
pp. S4-S4 ◽  
Author(s):  
Maria Glória Teixeira ◽  
Ana Boischio ◽  
Maria da Conceição N. Costa
Keyword(s):  
Chagas Disease ◽  
Vector Borne Diseases ◽  
Vector Borne ◽  
Ecosystem Approaches

scholarly journals POTENSI TRIATOMA SP DALAM PENYEBARAN PENYAKIT TULAR VEKTOR EMERGING DI INDONESIA

2019 ◽  
Vol 11 (2) ◽  
pp. 131-138
Author(s):  
Risqa Novita
Keyword(s):  
Allergic Reaction ◽  
Southeast Asia ◽  
Chagas Disease ◽  
Early Warning System ◽  
Warning System ◽  
Emerging Diseases ◽  
Laboratory Research ◽  
Tropical Country ◽  
Vector Borne Diseases ◽  
Vector Borne

The era of globalization allows migration fastly, so we do not have boundary of a country. This led to an increase of the infectious diseases. Indonesia also have an impact on this globalization by highly migration. Indonesia is a tropical country and has diversity of vectors that can transmit various tropical diseases. One of a vector  which transmitted vector borne diseases is a bug Triatoma. Triatoma lives near the people’s house and in the bed. One of the species of Triatoma which found in indonesia is Triatoma rubrifasciata which is vector of Chagas disease and Leprosy and can cause allergic reaction of the skin after the bite. Triatoma infection in Southeast Asia, including in Indonesia has not been widely reported. This condition should make us to be alert on the disease emerging or re emerging diseases that can be caused by Triatoma . This article aims to study Triatoma as a vector of emerging and potentially re emerging diseases in Indonesia, which are Chagas, skin allergic reaction after bite and Leprosy. Methods. Literature review by look in google scholar and pubmed, by search using keywords: emerging parasitic, vector borne diseases, Triatoma in Southeast Asia. Inclusion criterias are research articles, laboratory research, case report, and systematic surveillance. Based on the literatures, tracing data that Indonesia has a chance to be  the cases of Chagas disease, Skin allergic reaction of Triatoma and Leprosy. It is supposed to made the vigilance on  make a early warning system, so our public health coud be achieved highest.

scholarly journals Recent trends in global insecticide use for disease vector control and potential implications for resistance management

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Henk van den Berg ◽  
Haroldo Sergio da Silva Bezerra ◽  
Samira Al-Eryani ◽  
Emmanuel Chanda ◽  
Bhupender N. Nagpal ◽  
...  
Keyword(s):  
Insecticide Resistance ◽  
Vector Control ◽  
Chagas Disease ◽  
Pyrethroid Resistance ◽  
Resistance Management ◽  
Insecticide Treated Nets ◽  
Vector Borne Diseases ◽  
Control Programs ◽  
Disease Vector ◽  
Vector Borne

AbstractInsecticides have played a major role in the prevention, control, and elimination of vector-borne diseases, but insecticide resistance threatens the efficacy of available vector control tools. A global survey was conducted to investigate vector control insecticide use from 2010 to 2019. Out of 140 countries selected as sample for the study, 87 countries responded. Also, data on ex-factory deliveries of insecticide-treated nets (ITNs) were analyzed. Insecticide operational use was highest for control of malaria, followed by dengue, leishmaniasis and Chagas disease. Vector control relied on few insecticide classes with pyrethroids the most used overall. Results indicated that IRS programs have been slow to react to detection of pyrethroid resistance, while proactive resistance management using insecticides with unrelated modes of action was generally weak. The intensive use of recently introduced insecticide products raised concern about product stewardship regarding the preservation of insecticide susceptibility in vector populations. Resistance management was weakest for control of dengue, leishmaniasis or Chagas disease. Therefore, it will be vital that vector control programs coordinate on insecticide procurement, planning, implementation, resistance monitoring, and capacity building. Moreover, increased consideration should be given to alternative vector control tools that prevent the development of insecticide resistance.

scholarly journals Decoys and dilution: the impact of incompetent hosts on prevalence of Chagas disease

2019 ◽  
Author(s):  
Mondal Hasan Zahid ◽  
Christopher M. Kribs
Keyword(s):  
Chagas Disease ◽  
Disease Transmission ◽  
Birth Rate ◽  
Parasite Prevalence ◽  
Human Infection ◽  
Vector Borne Diseases ◽  
Intermediate Distance ◽  
Vector Borne ◽  
Reduce Risk ◽  
The Impact

AbstractBiodiversity is commonly believed to reduce risk of vector-borne zoonoses. However, researchers already showed that the effect of biodiversity on disease transmission is not that straightforward. This study focuses on the effect of biodiversity, specifically on the effect of the decoy process (additional hosts distracting vectors from their focal host), on reducing infections of vector-borne diseases in humans. Here, we consider the specific case of Chagas disease and use mathematical population models to observe the impact on human infection of the proximity of chickens, which are incompetent hosts for the parasite but serve as a preferred food source for vectors. We consider three cases as the distance between the two host populations varies: short (when farmers bring chickens inside the home to protect them from predators), intermediate (close enough for vectors with one host to detect the presence of the other host type), and far (separate enclosed buildings such as a home and hen-house). Our analysis shows that the presence of chickens reduces parasite prevalence in humans only at an intermediate distance under the condition that the vector birth rate from feeding on chickens is sufficiently low.

scholarly journals Chromatic and Morphological Differentiation of Triatoma dimidiata (Hemiptera: Reduviidae) with Land Use Diversity in El Salvador

Pathogens ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 753
Author(s):  
Víctor D. Carmona-Galindo ◽  
Claire C. Sheppard ◽  
Madelyn L. Bastin ◽  
Megan R. Kehrig ◽  
Maria F. Marín-Recinos ◽  
...  
Keyword(s):  
Land Use ◽  
El Salvador ◽  
Chagas Disease ◽  
Green Space ◽  
Morphological Differentiation ◽  
Mitigation Strategies ◽  
Vector Borne Diseases ◽  
Land Use Types ◽  
Vector Borne ◽  
Change Mitigation

Chagas disease is caused by the parasite Trypanosoma cruzi, which is transmitted by insect-vectors in the taxonomic subfamily Triatominae and affects approximately 8,000,000 people world-wide. Current mitigation strategies for Chagas focus on insecticides, infrastructure improvements, and management of symptoms, which are largely unsustainable in underserved communities where the disease is widespread. Transmission patterns of vector-borne diseases are known to adaptively respond to habitat change; as such, the objective of our study was to evaluate how the physical characteristics of Triatoma dimidiata would vary in relation to land use in El Salvador. We hypothesized that the color and morphology of T. dimidiata would change with municipal levels of urban and natural green space, natural green space, and agricultural space, as well as municipal diversity, richness, and evenness of land use types. Our results characterize how T. dimidiata color and morphology vary directly with anthropogenic changes to natural and agricultural environments, which are reflective of a highly adaptable population primed to respond to environmental change. Mitigation studies of Chagas disease should exploit the relationships between anthropogenic land use and T. dimidiata morphology to evaluate how the transmission pattern of T. cruzi and Chagas disease symptomology are impacted.

scholarly journals Predictions of Future Geographical Distribution of Two Vectors of American Trypanosomiasis: Implications for Endemic Chagas disease in Texas, USA

Fine Focus ◽  
2017 ◽  
Vol 3 (2) ◽  
pp. 129-138
Author(s):  
Helen G. Scott ◽  
Catherine A. Wakeman
Keyword(s):  
Chagas Disease ◽  
Protozoan Parasite ◽  
Environmental Niche ◽  
American Trypanosomiasis ◽  
Vector Borne Diseases ◽  
Bioclimatic Variables ◽  
Vector Distribution ◽  
The Face ◽  
Vector Borne ◽  
Environmental Niche Models

It is known that climate has a direct effect on vectorborne and zoonotic diseases, and in the face of climate change, understanding this link has become more urgent. Many such vector-borne diseases primarily afflict impoverished populations and have therefore been previously understudied. One major focus of our research is to understand the influence that climate has on the distribution of disease causing microorganisms and their vectors, especially those in relation to American trypanosomiasis (Chagas disease). Chagas disease is caused by the hemoflagellate protozoan parasite, Trypanosoma cruzi. For this study, we hypothesized that the increasing prevalence Chagas in the state of Texas is due to expanding distributions of vectors. To test this hypothesis, historical data on vector distribution and climate was used to determine the probable locations of prevalent vectors in Texas. Predictions for the future distributions were made using environmental niche models for bioclimatic variables with a maximum entropy algorithm. Of the two Triatominae species studied, the range and concentration of both decreased under a global warming scenario, a finding that is consistent with the current research of risk of Chagas disease in Venezuela. In future, this same procedure will be used on more Chagas vectors to better understand if there is a northward shift for vectors, or if Texas is becoming more inhospitable to all vectors of Chagas.

scholarly journals Influence of Vectors’ Risk-Spreading Strategies and Environmental Stochasticity on the Epidemiology and Evolution of Vector-Borne Diseases: The Example of Chagas’ Disease

PLoS ONE ◽  
2013 ◽  
Vol 8 (8) ◽  
pp. e70830 ◽  
Author(s):  
Perrine Pelosse ◽  
Christopher M. Kribs-Zaleta ◽  
Marine Ginoux ◽  
Jorge E. Rabinovich ◽  
Sébastien Gourbière ◽  
...  
Keyword(s):  
Chagas Disease ◽  
Environmental Stochasticity ◽  
Vector Borne Diseases ◽  
Risk Spreading ◽  
Vector Borne

scholarly journals The ecological dimensions of vector-borne disease research and control

2009 ◽  
Vol 25 (suppl 1) ◽  
pp. S155-S167 ◽  
Author(s):  
Brett R. Ellis ◽  
Bruce A. Wilcox
Keyword(s):  
Vector Control ◽  
Ecological Problem ◽  
Vector Borne Diseases ◽  
Vector Borne Disease ◽  
Disease Research ◽  
Ecological Changes ◽  
Vector Borne ◽  
And Control ◽  
Ecological Dimension ◽  
Ecosystem Approaches

Alarming trends in the resurgence of vector-borne diseases are anticipated to continue unless more effective action is taken to address the variety of underlying causes. Social factors, anthropogenic environmental modifications and/or ecological changes appear to be the primary drivers. The ecological dimension of vector-borne disease research and management is a pervasive element because this issue is essentially an ecological problem with biophysical, social, and economic dimensions. However there is often a lack of clarity about the ecological dimension, the field of ecology (e.g. role, limitations), and related concepts pertinent to ecosystem approaches to health. An ecological perspective can provide foresight into the appropriateness of interventions, provide answers to unexpected vector control responses, and contribute to effective management solutions in an ever-changing environment. The aim of this paper is to explore the ecological dimension of vector-borne diseases and to provide further clarity about the role of "ecological thinking" in the development and implementation of vector control activities (i.e. ecosystem approaches to vector-borne diseases).

scholarly journals Urbanization, land tenure security and vector-borne Chagas disease

2014 ◽  
Vol 281 (1789) ◽  
pp. 20141003 ◽  
Author(s):  
Michael Z. Levy ◽  
Corentin M. Barbu ◽  
Ricardo Castillo-Neyra ◽  
Victor R. Quispe-Machaca ◽  
Jenny Ancca-Juarez ◽  
...  
Keyword(s):  
Chagas Disease ◽  
Land Tenure ◽  
Construction Materials ◽  
Triatoma Infestans ◽  
Insect Vector ◽  
Tenure Security ◽  
Vector Borne Diseases ◽  
Modern Cities ◽  
Epidemiological Surveys ◽  
Vector Borne

Modern cities represent one of the fastest growing ecosystems on the planet. Urbanization occurs in stages; each stage characterized by a distinct habitat that may be more or less susceptible to the establishment of disease vector populations and the transmission of vector-borne pathogens. We performed longitudinal entomological and epidemiological surveys in households along a 1900 × 125 m transect of Arequipa, Peru, a major city of nearly one million inhabitants, in which the transmission of Trypanosoma cruzi , the aetiological agent of Chagas disease, by the insect vector Triatoma infestans , is an ongoing problem. The transect spans a cline of urban development from established communities to land invasions. We find that the vector is tracking the development of the city, and the parasite, in turn, is tracking the dispersal of the vector. New urbanizations are free of vector infestation for decades. T. cruzi transmission is very recent and concentrated in more established communities. The increase in land tenure security during the course of urbanization, if not accompanied by reasonable and enforceable zoning codes, initiates an influx of construction materials, people and animals that creates fertile conditions for epidemics of some vector-borne diseases.

The Spread of Mosquito Borne Disease – Is Climate Change Beginning to Bite?

2019 ◽  
Vol 30 (5) ◽  
pp. 192-194
Author(s):  
John (Luke) Lucas
Keyword(s):  
Climate Change ◽  
Vector Borne Diseases ◽  
Vector Borne

The author considers the threat to vector-borne diseases in the light of climate change.

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