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Published on: November 5, 2021
Chagas disease
José A Pérez-Molina1, Israel Molina2
1National Referral Centre for Tropical Diseases, Infectious Diseases Department, Hospital Universitario Ramón y Cajal, Insituto Ramón y Cajal de Investgación Sanitaria, Madrid, Spain.
Insights
Chagas disease, caused by Trypanosoma cruzi, remains a significant health challenge in the Americas. Improved diagnostics, treatments, and control strategies are crucial for managing this complex parasitic infection.
Area of Science:
- Neglected tropical diseases
- Parasitic infections
- American trypanosomiasis
Background:
- Chagas disease is a zoonotic parasitic disease endemic to the Americas, caused by Trypanosoma cruzi.
- Migration has led to the global spread of Chagas disease.
- Chronic Chagas disease can lead to severe complications like cardiomyopathy and megaviscera in 30-40% of cases.
Purpose of the Study:
- To highlight the persistent challenges in Chagas disease management.
- To emphasize the need for advancements in control, diagnosis, and therapy.
- To underscore the evolving patient population and their complex needs.
Main Methods:
- Review of current knowledge and challenges in Chagas disease.
- Analysis of limitations in existing diagnostic, therapeutic, and prognostic tools.
- Discussion of the changing epidemiological landscape and patient demographics.
Main Results:
- Despite over a century of study, significant unmet needs persist in Chagas disease control and treatment.
- Current therapeutic agents have suboptimal efficacy and tolerability.
- The affected population is increasingly complex, including elderly and immunocompromised individuals.
Conclusions:
- Substantial improvements in epidemiological control, diagnostics, therapeutics, and prognostics are urgently required.
- Addressing the limitations of current treatments is critical for improving patient outcomes.
- Enhanced international collaboration and research are essential to combat Chagas disease effectively in the 21st century.
Abstract:
Chagas disease is an anthropozoonosis from the American continent that has spread from its original boundaries through migration. It is caused by the protozoan Trypanosoma cruzi, which was identified in the first decade of the 20th century. Once acute infection resolves, patients can develop chronic disease, which in up to 30-40% of cases is characterised by cardiomyopathy, arrhythmias, megaviscera, and, more rarely, polyneuropathy and stroke. Even after more than a century, many challenges remain unresolved, since epidemiological control and diagnostic, therapeutic, and prognostic methods must be improved. In particular, the efficacy and tolerability profile of therapeutic agents is far from ideal. Furthermore, the population affected is older and more complex (eg, immunosuppressed patients and patients with cancer). Nevertheless, in recent years, our knowledge of Chagas disease has expanded, and the international networking needed to change the course of this deadly disease during the 21st century has begun.
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