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Macroecological patterns of American Cutaneous Leishmaniasis transmission across the health areas of Panamá (1980–2012)


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Title: Macroecological patterns of American Cutaneous Leishmaniasis transmission across the health areas of Panamá (1980–2012)
Other Titles: パナマ共和国の保健行政区域におけるアメリカ皮膚リーシュマニア症のマクロ生態学的伝播様式(1980−2012)
Authors: 山田, 晃嗣
Authors (alternative): Yamada, Koji
Issue Date: 6-Sep-2017
Publisher: Elsevier Ltd
Citation: Nagasaki University (長崎大学), 博士(医学) (2017-09-06)
Abstract: American Cutaneous Leishmaniasis (ACL) is a neglected vector-borne zoonosis that persists despite increasing socio-economic development and urbanization in Panamá. Here, we investigate the association between environmental changes and spatio-temporal ACL transmission in the Republic of Panamá (1980–2012). We employ a macroecological approach, where patterns of variation in ACL incidence at the spatially coarse-grained scale of health areas are studied considering factors linked to the ecology of ACL transmission. We specifically study impacts of climatic variability, measured by the different phases of El Niño Southern Oscillation (ENSO), within diverse ecosystems and sand fly (Diptera: Psychodidae) vector species, as well as heterogeneous local climatic patterns, deforestation, population growth rates, and changes in social marginalization. We found that over the study period, patterns of ACL incidence: (i) were asynchronous with clusters changing from east to west of the Panamá Canal, (ii) trends increased in the west, and decreased or remained nearly constant in the east, independent of human population growth, (iii) generally increased in years following El Niño, and (iv) decreased as forest cover increased. We found no significant association between changes in socio-economic indicators and ACL transmission. Regarding vector abundance and presence, we found that studies had been biased to locations east of the Panamá canal, and that, in general, the abundance of dominant vector species decreased during the cold phase of ENSO. Finally, our results indicate that a macroecological approach is useful to understand heterogeneities related to environmental change impacts on ACL transmission.
Description: 長崎大学学位論文 学位記番号:博(医歯薬)甲第994号 学位授与年月日:平成29年9月6日 / Author: Koji Yamada, Anayansi Valderrama, Nicole Gottdenker, Lizbeth Cerezo, Noboru Minakawa, Azael Saldaña, José E. Calzada, Luis Fernando Chaves / Citation: Parasite Epidemiology and Control, 1(2), pp.42-55; 2016
Keywords: El Niño / Reservoirs / Deforestation / Marginalization / Sand fly vectors
URI: http://hdl.handle.net/10069/37892
ISSN: 24056731
DOI: 10.1016/j.parepi.2016.03.003
Relational Links: http://hdl.handle.net/10069/37805
Rights: © 2016 The Authors. Published by Elsevier Ltd on behalf of World Federation of Parasitologists.This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Type: Thesis or Dissertation
Text Version: ETD
Appears in Collections:dissertation

Citable URI : http://hdl.handle.net/10069/37892

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