Monkey eyeing sampling platform

CREATE-NEO: Anayansi Valderrama, BA, MSc, PhD
Panama Team

AnayansiAnayansi Valderrama, BA, MSc, PhD
Senior Researcher, Gorgas Institute

Community and population ecology of mosquito vectors

My research focuses on understanding the impact of anthropogenic activities in the community as well as population genetics of mosquitos vectors. Additionally, my research aims to investigate the reservoir-vector-pathogen interactions, in order to develop strategies of surveillance and epidemic control. My ultimate goal is to support policymakers, strategies, and entomological surveillance in Latin America.

Members of the Valderrama group:

Mileyka Santos
Eddier Rivera
Angelica Castro
Brigitte Henriquez
Damaris Bernal
Luisa Collado


  1. Santos M, Collado Mariscal L, Henríquez B, Garzón J, González P, Carrera JP, Tello J, Koo S, Pascale JM, Burkett-Cadena N, Armién B, Valderrama A. Implementation of bamboo and monkey-pot traps for the sampling cavity-breeding mosquitoes in Darién, Panama. Acta Trop. 2020 May;205:105352. doi: 10.1016/j.actatropica.2020.105352. Epub 2020 Jan 22.PMID: 31981495
  1. Pérez JG, Carrera JP, Serrano E, Pittí Y, Maguiña JL, Mentaberre G, Lescano AG, Valderrama A, Mayor P. Serologic Evidence of Zoonotic Alphaviruses in Humans from an Indigenous Community in the Peruvian Amazon. Am J Trop Med Hyg. 2019 Dec;101(6):1212-1218. doi: 10.4269/ajtmh.18-0850.PMID: 31571566
  1. Rigg CA, Calzada JE, Saldaña A, Perea M, Chaves LF, Valderrama A.  Leishmania spp. Infection Rate and Feeding Patterns of Sand Flies (Diptera: Psychodidae) from a Hyperendemic Cutaneous Leishmaniasis Community in Panamá. Am J Trop Med Hyg. 2019 Apr;100(4):798-807. doi: 10.4269/ajtmh.17-0628.PMID: 30793681 
  1. Murcia O, Henríquez B, Castro A, Koo S, Young J, Márquez R, Pérez D, Cáceres L, Valderrama A. Presence of the point mutations Val1016Gly in the voltage-gated sodium channel detected in a single mosquito from Panama. Parasit Vectors. 2019 Jan 28;12(1):62. doi: 10.1186/s13071-019-3309-y.PMID: 30691518 
  1. Carrera JP, Bagamian KH, Travassos da Rosa AP, Wang E, Beltran D, Gundaker ND, Armien B, Arroyo G, Sosa N, Pascale JM, Valderrama A, Tesh RB, Vittor AY, Weaver SC. Human and Equine Infection with Alphaviruses and Flaviviruses in Panamá during 2010: A Cross-Sectional Study of Household Contacts during an Encephalitis Outbreak. Am J Trop Med Hyg. 2018 Jun;98(6):1798-1804. doi: 10.4269/ajtmh.17-0679. Epub 2018 May 3.PMID: 29737271 
  1. Valderrama A, Díaz Y, López-Vergès S. Interaction of Flavivirus with their mosquito vectors and their impact on the human health in the Americas. Biochem Biophys Res Commun. 2017 Oct 28;492(4):541-547. doi: 10.1016/j.bbrc.2017.05.050. Epub 2017 May 10.PMID: 28499872 Review.
  1. Carrera JP, Díaz Y, Denis B, Barahona de Mosca I, Rodriguez D, Cedeño I, Arauz D, González P, Cerezo L, Moreno L, García L, Sáenz LE, Atencio MA, Rojas-Fermin E, Vizcaino F, Perez N, Moreno B, López-Vergès S, Valderrama A, Armién B. Unusual pattern of chikungunya virus epidemic in the Americas, the Panamanian experience. PLoS Negl Trop Dis. 2017 Feb 21;11(2):e0005338. doi: 10.1371/journal.pntd.0005338. eCollection 2017 Feb.PMID: 28222127 
  1. Vittor AY, Armien B, Gonzalez P, Carrera JP, Dominguez C, Valderrama A, Glass GE, Beltran D, Cisneros J, Wang E, Castillo A, Moreno B, Weaver SC. Epidemiology of Emergent Madariaga Encephalitis in a Region with Endemic Venezuelan Equine Encephalitis: Initial Host Studies and Human Cross-Sectional Study in Darien, Panama. PLoS Negl Trop Dis. 2016 Apr 21;10(4):e0004554. doi: 10.1371/journal.pntd.0004554. eCollection 2016 Apr.PMID: 27101567 
  1. Yamada K, Valderrama A, Gottdenker N, Cerezo L, Minakawa N, Saldaña A, Calzada JE, Chaves LF. Macroecological patterns of American Cutaneous Leishmaniasis transmission across the health areas of Panamá (1980-2012). Parasite Epidemiol Control. 2016 Mar 18;1(2):42-55. doi: 10.1016/j.parepi.2016.03.003. eCollection 2016 Jun.PMID: 29988197 
  1. Chaves LF, Calzada JE, Valderrama A, Saldaña A. Cutaneous leishmaniasis and sand fly fluctuations are associated with el niño in panamá. PLoS Negl Trop Dis. 2014 Oct 2;8(10):e3210. doi: 10.1371/journal.pntd.0003210. eCollection 2014 Oct.PMID: 25275503 
  1. Valderrama A, Tavares MG, Dilermando Andrade Filho J. Phylogeography of the Lutzomyia gomezi (Diptera: Phlebotominae) on the Panama Isthmus. Parasit Vectors. 2014 Jan 8;7:9. doi: 10.1186/1756-3305-7-9.PMID: 24398187 
  1. Chaves LF, Calzada JE, Rigg C, Valderrama A, Gottdenker NL, Saldaña A. Leishmaniasis sand fly vector density reduction is less marked in destitute housing after insecticide thermal fogging. Parasit Vectors. 2013 Jun 6;6:164. doi: 10.1186/1756-3305-6-164.PMID: 23742709 
  1. Calzada JE, Saldaña A, Rigg C, Valderrama A, Romero L, Chaves LF. Changes in phlebotomine sand fly species composition following insecticide thermal fogging in a rural setting of Western panamá. PLoS One. 2013;8(1):e53289. doi: 10.1371/journal.pone.0053289. Epub 2013 Jan 9.PMID: 23536748 
  1. Valderrama A, Tavares MG, Andrade Filho JD. Report of Lutzomyia longipalpis (Lutz & Neiva, 1912) (Diptera: Psychodidae: Phlebotominae) in a cutaneous-leishmaniasis-endemic area of Panama. Mem Inst Oswaldo Cruz. 2011 Dec;106(8):1049-51. doi: 10.1590/s0074-02762011000800025.PMID: 22241132
  1. Valderrama A, Tavares MG, Andrade Filho JD. Anthropogenic influence on the distribution, abundance and diversity of sandfly species (Diptera: Phlebotominae: Psychodidae), vectors of cutaneous leishmaniasis in Panama. Mem Inst Oswaldo Cruz. 2011 Dec;106(8):1024-31. doi: 10.1590/s0074-02762011000800021.PMID: 22241128
  1. Vila R, Santana AI, Pérez-Rosés R, Valderrama A, Castelli MV, Mendonca S, Zacchino S, Gupta MP, Cañigueral S. Composition and biological activity of the essential oil from leaves of Plinia cerrocampanensis, a new source of alpha-bisabolol. Bioresour Technol. 2010 Apr;101(7):2510-4. doi: 10.1016/j.biortech.2009.11.021. Epub 2009 Dec 16.PMID: 20015638

CREATE-NEO members

The Centers for Research in Emerging Infectious Disease (CREID) is a coordinated network with centers in regions around the globe where emerging and re-emerging infectious disease outbreaks are likely to occur. Multidisciplinary teams of investigators will conduct pathogen/host surveillance, study pathogen transmission, pathogenesis and immunologic responses in the host, and will develop reagents and diagnostic assays for improved detection for important emerging pathogens and their vectors.

NIAID launched the CREID Network in 2020.This website is run by CREATE-NEO, a member of the CREID Network independent of NIH/NIAID.