Emerging Infectious Disease ISSN: 1080-6059

Emerging Chagas Disease: Trophic Network and Cycle of Transmission of Trypanosoma cruzi from Palm Trees in the Amazon

Antonio R.L. Teixeira*

, Pedro Sadi Monteiro*, José M. Rebelo†, Enrique R. Argañaraz*, Daniela Vieira*, Liana Lauria-Pires*, Rubens Nascimento*, Cássia A. Vexenat*, Antonio R. Silva†, Steven K. Ault‡, and Jackson M. Costa‡

Author affiliations: *University of Brasília,; †Federal University of Maranhão,; ‡Pan-American Health Organization/World Health Organization, Brasília, Brazil

Main Article

Figure 3

Human population growth and acute T. cruzi infections in the Amazonian county Paço do Lumiar (19-28). In A, population density increased approximately fourfold in the last three decades. In B, autoctonous acute T. cruzi infections increased fourfold in the same timespan (comparing percentages of seropositivity in 41- to 50-year-olds vs. 11- to 20-year-olds), affecting younger age groups.

Figure 3. . Human population growth and acute T. cruzi infections in the Amazonian county Paço do Lumiar (19-28). In A, population density increased approximately fourfold in the last three decades. In B, autoctonous acute T. cruzi infections increased fourfold in the same timespan (comparing percentages of seropositivity in 41- to 50-year-olds vs. 11- to 20-year-olds), affecting younger age groups.

Main Article

¹In this study, a major ecosystem is defined as a set of ecoregions of comparable dynamics, response characteristics to disturbance, species diversity, and conservation needs. An ecoregion is a geographically distinct set of natural communities with similar species, ecologic dynamics, environmental conditions, and ecologic interactions critical for long-term persistence (1).

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