The symptoms of Chagas Disease occur in three stages: 
- Acute: fever, headache, myalgia, rash, vomiting, diarrhea, and enlarged spleen, liver, and lymph nodes.
- Intermediate: little to no symptoms
- Chronic: painful swelling of the colon and esophagus 

Signs and Symptoms of Chagas Disease

Chagas disease is caused by the pathogenic flagellated protozoan *Trypanosoma cruzi* and is transmitted to humans by the triatomine bug.

- Malaria
- Toxoplasmosis
- Babesiosis
- Chagas Disease
- Leishmaniasis
- Schistosomiasis

Parasitic Infections of the Circulatory and Lymphatic Systems

https://openstax.org/details/books/microbiology/

Microbiology covers the scope and sequence requirements for a single-semester microbiology course for non-majors. The book presents the core concepts of microbiology with a focus on applications for careers in allied health. The pedagogical features of the text make the material interesting and accessible while maintaining the career-application focus and scientific rigor inherent in the subject matter. Microbiology’s art program enhances students’ understanding of concepts through clear and effective illustrations, diagrams, and photographs.

Microbiology is produced through a collaborative publishing agreement between OpenStax and the American Society for Microbiology Press. The book aligns with the curriculum guidelines of the American Society for Microbiology.

OpenStax Microbiology Textbook

Malaria is caused by protozoan parasites in the genus *Plasmodium* and transmitted through the bites of mosquitoes

Malaria

Toxoplasmosis is caused by the pathogenic protozoan *Toxoplasma gondii*.

Toxoplasmosis

Babesiosis is caused by the pathogen *Babesia spp* and is transmitted by black-legged ticks.

Babesiosis

Chagas Disease

Leishmaniasis is caused by 20 different protozoan parasites species of *Leishmania* and transmitted to humans through sand flies. 

Leishmaniasis

Schistosomiasis is caused by *Schistosoma mansoni*, *S. haematobium*, or *S. japonicum*, trematodes that invade through the skin. 

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