Listar por tema "Molecular Epidemiology"

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  • Assessment of an automated capillary system for Plasmodium vivax microsatellite genotyping 
    Manrique Valverde, Paulo Cesar; Hoshi, Mari; Fasabi, Manuel; Nolasco, Oscar; Yori, Pablo; Calderón Sánchez, Maritza Mercedes; Gilman, Robert Hugh; Kosek, Margaret N.; Vinetz, Joseph Michael; Gamboa Vilela, Dionicia Baziliza (BioMed Central, 2015)
    BACKGROUND: Several platforms have been used to generate the primary data for microsatellite analysis of malaria parasite genotypes. Each has relative advantages but share a limitation of being time- and cost-intensive. A ...
  • Caracterización de Escherichia coli D7111 productora de β-lactamasa TEM-176 
    Ruiz, Joaquim; Pons, Maria J.; Mosquito, Susan; Ochoa Woodell, Theresa Jean; Sáenz, Yolanda (Instituto Nacional de Salud, 2021)
    The present report is the original description of blaTEM-176. The mechanisms of resistance to antimicrobial agents were determined in an enterotoxigenic Escherichia coli, determining the susceptibility to 22 antimicrobials ...
  • Dispersal patterns of Trypanosoma cruzi in Arequipa, Peru 
    Berry, Alexander S. F.; Salazar Sánchez, Renzo Sadath; Castillo Neyra, Ricardo; Borrini-Mayorí, Katty; Arevalo Nieto, Claudia Rebeca; Chipana-Ramos, Claudia; Vargas-Maquera, Melina; Ancca-Juarez, Jenny; Naquira Velarde, Cesar Gabriel; Levy, Michael Z.; Brisson, Dustin (Public Library of Science, 2020)
    Anthropogenic environmental alterations such as urbanization can threaten native populations as well as create novel environments that allow human pests and pathogens to thrive. As the number and size of urban environments ...
  • Dynamics of nasal carriage of methicillin-resistant Staphylococcus aureus among healthcare workers in a tertiary-care hospital in Peru 
    García Apac, Coralith Marlinda; Acuna-Villaorduna, A.; Dulanto, A.; Vandendriessche, S.; Hallin, M.; Jacobs, J.; Denis, O. (Springer, 2015)
    The study aims were to describe the frequency and dynamics of methicillin-resistant Staphylococcus aureus (MRSA) carriage among healthcare workers (HCWs), and to compare the molecular epidemiology of MRSA isolates from ...
  • Genetic diversity of locus of enterocyte effacement genes of enteropathogenic Escherichia coli isolated from Peruvian children 
    Contreras, C.A.; Ochoa Woodell, Theresa Jean; Ruiz, J.; Lacher, D.W.; Durand Vara, David Percy; Debroy, C.; Lanata, C.F.; Cleary, T.G. (Microbiology Society, 2012)
    The aim of this study was to determine the frequency and allele associations of locus of enterocyte effacement encoded esp and tir genes among 181 enteropathogenic Escherichia coli (EPEC) strains (90 diarrhoea-associated ...
  • Genetic diversity, population structure and drug resistance of Mycobacterium tuberculosis in Peru 
    Taype, C.A.; Agapito, J.C.; Accinelli Tanaka, Roberto Alfonso; Espinoza, J.R.; Godreuil, S.; Goodman, S.J.; Bañuls, A.L.; Shaw, M.A. (Elsevier, 2012)
    This paper presents the first evaluation of the molecular epidemiology of . Mycobacterium tuberculosis in Peru. We characterised 323 isolates using spoligotyping and mycobacterial interspersed repetitive units variable ...
  • Interconnected microbiomes and resistomes in low-income human habitats 
    Pehrsson, Erica C.; Tsukayama Cisneros, Pablo; Patel, Sanket; Mejia-Bautista, Melissa; Sosa-Soto, Giordano; Navarrete, Karla M.; Calderón Sánchez, Maritza Mercedes; Cabrera, Lilia; Hoyos-Arango, William; Bertoli, M. Teresita; Berg, Douglas E.; Gilman, Robert Hugh; Dantas, Gautam (Springer Nature, 2016)
    Antibiotic-resistant infections annually claim hundreds of thousands of lives worldwide. This problem is exacerbated by exchange of resistance genes between pathogens and benign microbes from diverse habitats. Mapping ...
  • Malaria Molecular Epidemiology: Lessons from the International Centers of Excellence for Malaria Research Network 
    Escalante, Ananias A.; Ferreira, Marcelo U.; Vinetz, Joseph Michael; Volkman, Sarah K.; Cui, Liwang; Gamboa Vilela, Dionicia Baziliza; Krogstad, Donald J.; Barry, Alyssa E.; Carlton, Jane M.; van Eijk, Anna Maria; Pradhan, Khageswar; Mueller, Ivo; Greenhouse, Bryan; Pacheco, M. Andreina; Vallejo, Andres F.; Herrera, Socrates; Felger, Ingrid (American Society of Tropical Medicine and Hygiene, 2015)
    Molecular epidemiology leverages genetic information to study the risk factors that affect the frequency and distribution of malaria cases. This article describes molecular epidemiologic investigations currently being ...
  • Microgeographical differences of Plasmodium vivax relapse and re-infection in the Peruvian Amazon 
    Chuquiyauri, Raul; Peñataro, Pablo; Brouwer, Kimberly C.; Fasabi, Manuel; Calderón Sánchez, Maritza Mercedes; Torres, Sonia; Gilman, Robert Hugh; Kosek, Margaret; Vinetz, Joseph Michael (American Society of Tropical Medicine and Hygiene, 2013)
    To determine the magnitude of Plasmodium vivax relapsing malaria in rural Amazonia, we carried out a study in four sites in northeastern Peru. Polymerase chain reaction-restriction fragment length polymorphism of PvMSP-3α ...
  • Microsatellite analysis reveals connectivity among geographically distant transmission zones of Plasmodium vivax in the Peruvian Amazon: A critical barrier to regional malaria elimination 
    Manrique Valverde, Paulo Cesar; Miranda-Alban, Julio; Alarcon-Baldeon, Jhonatan; Ramirez, Roberson; Carrasco Escobar, Gabriel; Herrera, Henry; Guzman Guzman, Mitchel Anthony; Rosas-Aguirre, Angel; Llanos Cuentas, Elmer Alejandro; Vinetz, Joseph Michael; Escalante, Ananias A.; Gamboa Vilela, Dionicia Baziliza (Public Library of Science, 2019)
    Despite efforts made over decades by the Peruvian government to eliminate malaria, Plasmodium vivax remains a challenge for public health decision-makers in the country. The uneven distribution of its incidence, plus its ...
  • Molecular epidemiology of plasmodium falciparum malaria outbreak, Tumbes, Peru, 2010–2012 
    Baldeviano, G.C.; Akinyi Okoth, S.; Arrospide, N.; Gonzalez, R.V.; Sánchez, J.F.; Macedo, S.; Conde, S.; Tapia, L.L.; Salas, C.; Gamboa Vilela, Dionicia Baziliza; Herrera, Y.; Edgel, K.A.; Udhayakumar, V.; Lescano Guevara, Andres Guillermo (Centers for Disease Control and Prevention, 2015)
    During 2010–2012, an outbreak of 210 cases of malaria occurred in Tumbes, in the northern coast of Peru, where no Plasmodium falciparum malaria case had been reported since 2006. To identify the source of the parasite ...
  • Molecular Epidemiology of Trypanosomatids and Trypanosoma cruzi in Primates from Peru 
    Aysanoa, Esar; Mayor, Pedro; Mendoza, A. Patricia; Zariquiey, Carlos M.; Morales, E. Angelo; Pérez, Jocelyn G.; Bowler, Mark; Ventocilla, Julio A.; González, Carlos; Baldeviano, G. Christian; Lescano Guevara, Andres Guillermo (Springer, 2017)
    We determined the prevalence rate and risk of infection of Trypanosoma cruzi and other trypanosomatids in Peruvian non-human primates (NHPs) in the wild (n = 126) and in different captive conditions (n = 183). Blood samples ...
  • Multi-locus sequence analysis reveals profound genetic diversity among isolates of the human pathogen bartonella bacilliformis 
    Chaloner, G.L.; Ventosilla, P.; Birtles, R.J. (Public Library of Science, 2011)
    Bartonella bacilliformis is the aetiological agent of human bartonellosis, a potentially life threatening infection of significant public health concern in the Andean region of South America. Human bartonellosis has long ...
  • Multilocus genotyping reveals a polyphyletic pattern among naturally antimony-resistant Leishmania braziliensis isolates from Peru 
    Adaui, V.; Maes, I.; Huyse, T.; Van den Broeck, F.; Talledo Albujar, Michael John; Kuhls, K.; De Doncker, S.; Maes, L.; Llanos Cuentas, Elmer Alejandro; Schönian, G.; Arévalo Zelada, Jorge Luis; Dujardin, J.-C. (Elsevier, 2011)
    In order to understand the epidemiological dynamics of antimonial (Sb V) resistance in zoonotic tegumentary leishmaniasis and its link with treatment outcome, we analyzed the population structure of 24 Peruvian Leishmania ...
  • Multiple norovirus infections in a birth cohort in a Peruvian Periurban community 
    Saito, Mayuko; Goel-Apaza, Sonia; Espetia, Susan; Velasquez, Daniel; Cabrera, Lilia; Loli, Sebastian; Crabtree, Jean E.; Black, Robert E.; Kosek, Margaret; Checkley, William; Zimic-Peralta, Mirko Juan; Bern, Caryn; Cama, Vitaliano; Gilman, Robert Hugh (Oxford University Press, 2014)
    BACKGROUND: Human noroviruses are among the most common enteropathogens globally, and are a leading cause of infant diarrhea in developing countries. However, data measuring the impact of norovirus at the community level ...
  • Predominant Mycobacterium tuberculosis families and high rates of recent transmission among new cases are not associated with primary multidrug resistance in Lima, Peru 
    Barletta, F.; Otero Vegas, Larissa; de Jong, B.C.; Iwamoto, T.; Arikawa, K.; Van der Stuyft, P.; Niemann, S.; Merker, M.; Uwizeye, C.; Seas Ramos, Carlos Rafael; Rigouts, L. (American Society for Microbiology, 2015)
    Sputum samples from new tuberculosis (TB) cases were collected over 2 years as part of a prospective study in the northeastern part of Lima, Peru. To measure the contribution of recent transmission to the high rates of ...
  • A Prospective Cohort Multicenter Study of Molecular Epidemiology and Phylogenomics of Staphylococcus aureus Bacteremia in Nine Latin American Countries 
    Arias, Cesar A.; Reyes, Jinnethe; Carvajal, Lina Paola; Rincon, Sandra; Diaz, Lorena; Panesso, Diana; Ibarra, Gabriel; Rios, Rafael; Munita, Jose M.; Salles, Mauro J.; Alvarez-Moreno, Carlos; Labarca, Jaime; García Apac, Coralith Marlinda; Luna, Carlos M.; Mejia-Villatoro, Carlos; Zurita, Jeannete; Guzman-Blanco, Manuel; Rodriguez-Noriega, Eduardo; Narechania, Apurva; Rojas, Laura J.; Planet, Paul J.; Weinstock, George M.; Gotuzzo Herencia, José Eduardo; Seas Ramos, Carlos Rafael (American Society for Microbiology, 2017)
    Staphylococcus aureus is an important pathogen causing a spectrum of diseases ranging from mild skin and soft tissue infections to life-threatening conditions. Bloodstream infections are particularly important, and the ...
  • Uso de genomas de SARS-CoV-2 para la estimación del número reproductivo efectivo (Rt) en Perú durante marzo y abril del 2020 
    Romero, Pedro E.; Sánchez-Yupari, Milagros; Montero, Stephanie; Tsukayama Cisneros, Pablo (Instituto Nacional de Salud, 2021)
    The understanding of COVID-19, caused by the SARS-CoV-2, is essential to improve evidence-based public health policies. The effective reproductive number (Rt) in Peru was estimated using information from 113 complete genomes ...

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