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Research Article

Evidence for a Peak Shift in a Humoral Response to Helminths: Age Profiles of IgE in the Shuar of Ecuador, the Tsimane of Bolivia, and the U.S. NHANES

  • Aaron D. Blackwell mail,

    ablackwell@isber.ucsb.edu

    Affiliations: Integrative Anthropological Sciences, University of California, Santa Barbara, Santa Barbara, California, United States of America, Department of Anthropology, University of Oregon, Eugene, Oregon, United States of America, Institute of Cognitive and Decision Sciences, University of Oregon, Eugene, Oregon, United States of America

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  • Michael D. Gurven,

    Affiliation: Integrative Anthropological Sciences, University of California, Santa Barbara, Santa Barbara, California, United States of America

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  • Lawrence S. Sugiyama,

    Affiliations: Department of Anthropology, University of Oregon, Eugene, Oregon, United States of America, Institute of Cognitive and Decision Sciences, University of Oregon, Eugene, Oregon, United States of America

    X
  • Felicia C. Madimenos,

    Affiliations: Department of Anthropology, University of Oregon, Eugene, Oregon, United States of America, Institute of Cognitive and Decision Sciences, University of Oregon, Eugene, Oregon, United States of America

    X
  • Melissa A. Liebert,

    Affiliations: Department of Anthropology, University of Oregon, Eugene, Oregon, United States of America, Institute of Cognitive and Decision Sciences, University of Oregon, Eugene, Oregon, United States of America

    X
  • Melanie A. Martin,

    Affiliation: Integrative Anthropological Sciences, University of California, Santa Barbara, Santa Barbara, California, United States of America

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  • Hillard S. Kaplan,

    Affiliation: Department of Anthropology, University of New Mexico, Albuquerque, New Mexico, United States of America

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  • J. Josh Snodgrass

    Affiliations: Department of Anthropology, University of Oregon, Eugene, Oregon, United States of America, Institute of Cognitive and Decision Sciences, University of Oregon, Eugene, Oregon, United States of America

    X
  • Published: June 28, 2011
  • DOI: 10.1371/journal.pntd.0001218

About the Authors

Aaron D. Blackwell, Michael D. Gurven, Melanie A. Martin
Integrative Anthropological Sciences, University of California, Santa Barbara, Santa Barbara, California, United States of America
Aaron D. Blackwell, Lawrence S. Sugiyama, Felicia C. Madimenos, Melissa A. Liebert, J. Josh Snodgrass
Department of Anthropology, University of Oregon, Eugene, Oregon, United States of America
Aaron D. Blackwell, Lawrence S. Sugiyama, Felicia C. Madimenos, Melissa A. Liebert, J. Josh Snodgrass
Institute of Cognitive and Decision Sciences, University of Oregon, Eugene, Oregon, United States of America
Hillard S. Kaplan
Department of Anthropology, University of New Mexico, Albuquerque, New Mexico, United States of America

Corresponding Author

Email: ablackwell@isber.ucsb.edu

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ADB MDG LSS HSK JJS. Performed the experiments: ADB MDG LSS FCM MAL MAM HSK JJS. Analyzed the data: ADB FCM MAL MAM. Contributed reagents/materials/analysis tools: MDG LSS HSK JSS. Wrote the paper: ADB MDG JJS.