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• 2005

  The early development of the Patagonian squid Loligo gahi D'Orbigny, 1835 in Peruvian Waters (Cephalopoda: Loliginidae)

  Cardoso, F., Baltazar, P. & Bautista, J., 2005, In: Revista Peruana de Biologia. 12, 3, p. 369-376 8 p.

  Research output: Contribution to journal › Article › peer-review

  13 Scopus citations

• Validación de la técnica de PCR para la detección de Escherichia coli enteroagregativa causante de diarrea del viajero

  Translated title of the contribution: Validation of a PCR technique for the detection of enteroagreggative Escherichia coli causing traveler's diarrheaRuiz-Blázquez, J., Vargas, M., Nataro, J. P., Vila, J. & Gascón I Brustenga, J., Oct 2005, In: Enfermedades Infecciosas y Microbiologia Clinica. 23, 8, p. 479-481 3 p.

  Research output: Contribution to journal › Article › peer-review
  7 Scopus citations

• Variaciones de tres índices larvarios de Aedes aegypti (L.) (Diptera: Culicidae) y su relación con los casos de dengue en Yurimaguas, Perú, 2000 - 2002

  Translated title of the contribution: Variations of three aedes aegypti (L.) Larval indexes (Diptera: Culicidae) and its relationship with dengue cases in Yurimaguas, Peru, 2000-2002Fernández, W. F. & Iannacone, J., 2005, In: Parasitologia Latinoamericana. 60, 1-2, p. 3-16 14 p.

  Research output: Contribution to journal › Article › peer-review

  5 Scopus citations
• 2004

  Antibiotic resistance and epidemiological typing of Staphylococcus aureus strains from ovine and rabbit mastitis

  Goñi, P., Vergara, Y., Ruiz, J., Albizu, I., Vila, J. & Gómez-Lus, R., Mar 2004, In: International Journal of Antimicrobial Agents. 23, 3, p. 268-272 5 p.

  Research output: Contribution to journal › Article › peer-review
  66 Scopus citations

• Censo de Ornithodoros amblus Chamberlin (Acarina: Argasidae) en la isla Mazorca, Lima, Perú

  Translated title of the contribution: Census of Ornithodoros amblus Chamberlin (Acarina: Argasidae) in Mazorca Island, Lima, PeruIannacone, J. & Ayala, L., 2004, In: Parasitologia Latinoamericana. 59, 1-2, p. 56-60 5 p.

  Research output: Contribution to journal › Article › peer-review

  3 Scopus citations

• Characterization of the molecular mechanisms of quinolone resistance in Yersinia enterocolitica O:3 clinical isolates

  Capilla, S., Ruiz, J., Goñi, P., Rubio, M. C., Jiménez de Anta, M. T., Gómez-Lus, R. & Vila, J., Jun 2004, In: Journal of Antimicrobial Chemotherapy. 53, 6, p. 1068-1071 4 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  22 Scopus citations

• Effect of the pump inhibitor Phe-Arg-β-naphthylamide on the MIC values of the quinolones, tetracycline and chloramphenicol, in Escherichia coli isolates of different origin [1]

  Sáenz, Y., Ruiz, J., Zarazaga, M., Teixidó, M., Torres, C. & Vila, J., Mar 2004, In: Journal of Antimicrobial Chemotherapy. 53, 3, p. 544-545 2 p.

  Research output: Contribution to journal › Letter › peer-review

  Open Access
  66 Scopus citations

• Etiology of diarrhea in children less than five years of age in Ifakara, Tanzania

  Vargas, M., Gascón, J., Casals, C., Schellenberg, D., Urassa, H., Kahigwa, E., Ruiz, J. & Vila, J., May 2004, In: American Journal of Tropical Medicine and Hygiene. 70, 5, p. 536-539 4 p.

  Research output: Contribution to journal › Article › peer-review
  82 Scopus citations

• Mecanismos de resistencia a betalactámicos y ácido nalidíxico en aislados clínicos de Salmonella enterica serotipo Hadar y Bsilla

  Translated title of the contribution: Mechanisms of resistance to beta lactams and nalidixic acid in clinical isolates of Salmonella enteritidis serotype Hadar and Bsilla [3]Ruiz, J., Navia, M. M., Marco, F. & Vila, J., Apr 2004, In: Enfermedades Infecciosas y Microbiologia Clinica. 22, 4, p. 252-253 2 p.

  Research output: Contribution to journal › Letter › peer-review
  1 Scopus citations

• Mechanism of resistance to several antimicrobial agents in Salmonella clinical isolates causing traveler's diarrhea

  Cabrera, R., Ruiz, J., Marco, F., Oliveira, I., Arroyo, M., Aladueña, A., Usera, M. A., Jiménez De Anta, M. T., Gascón, J. & Vila, J., Oct 2004, In: Antimicrobial Agents and Chemotherapy. 48, 10, p. 3934-3939 6 p.

  Research output: Contribution to journal › Article › peer-review
  43 Scopus citations

• Mechanisms of resistance in multiple-antibiotic-resistant Escherichia coli strains of human, animal, and food origins

  Sáenz, Y., Briñas, L., Domínguez, E., Ruiz, J., Zarazaga, M., Vila, J. & Torres, C., Oct 2004, In: Antimicrobial Agents and Chemotherapy. 48, 10, p. 3996-4001 6 p.

  Research output: Contribution to journal › Article › peer-review
  357 Scopus citations

• Molecular characterization of the integrons in Shigella strains isolated from patients with traveler's diarrhea

  Navia, M. M., Ruiz, J. & Vila, J., Mar 2004, In: Diagnostic Microbiology and Infectious Disease. 48, 3, p. 175-179 5 p.

  Research output: Contribution to journal › Article › peer-review
  19 Scopus citations
• 2003

  Aeromonas spp. and traveler's diarrhea: Clinical features and antimicrobial resistance

  Vila, J., Ruiz, J., Gallardo, F., Vargas, M., Soler, L., Figueras, M. J. & Gascon, J., 1 May 2003, In: Emerging Infectious Diseases. 9, 5, p. 552-555 4 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  145 Scopus citations

• Analysis of the clonal relationship among clinical isolates of Salmonella enterica serovar Infantis by different typing methods

  Merino, L. A., Ronconi, M. C., Navia, M. M., Ruiz, J., Sierra, J. M., Cech, N. B., Lodeiro, N. S. & Vila, J., 2003, In: Revista do Instituto de Medicina Tropical de Sao Paulo. 45, 3, p. 119-123 5 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  25 Scopus citations

• Blood Cultures for Women with Uncomplicated Acute Pyelonephritis: Are They Necessary?

  Velasco, M., Martínez, J. A., Moreno-Martínez, A., Horcajada, J. P., Ruiz, J., Barranco, M., Almela, M., Vila, J. & Mensa, J., 15 Oct 2003, In: Clinical Infectious Diseases. 37, 8, p. 1127-1130 4 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  86 Scopus citations

• Clonal dissemination of Yersinia enterocolitica strains with various susceptibilities to nalidixic acid

  Sánchez-Céspedes, J., Navia, M. M., Martínez, R., Orden, B., Millán, R., Ruiz, J. & Vila, J., 1 Apr 2003, In: Journal of Clinical Microbiology. 41, 4, p. 1769-1771 3 p.

  Research output: Contribution to journal › Article › peer-review
  10 Scopus citations

• Comunidades ectoparasitarias branquiales de la pintadilla Cheilodactylus variegatus Valenciennes 1833 (Pisces: Cheilodactylidae)

  Translated title of the contribution: Ectoparasite communities on the gills of peruvian morwong Cheilodactylus variegatus Valenciennes 1833 (Pisces: Cheilodactylidae)Iannacone, J., Alvariño, L., Guabloche, A., Alayo, M., Sanchez, J., Arrascue, A. & Abanto, M., 2003, In: Parasitologia Latinoamericana. 58, 1-2, p. 59-67 9 p.

  Research output: Contribution to journal › Article › peer-review

  2 Scopus citations

• Detection of dihydrofolate reductase genes by PCR and RFLP

  Navia, M. M., Ruiz, J., Sanchez-Cespedes, J. & Vila, J., 1 Aug 2003, In: Diagnostic Microbiology and Infectious Disease. 46, 4, p. 295-298 4 p.

  Research output: Contribution to journal › Article › peer-review
  40 Scopus citations

• Dispersión intercontinental de una cepa de Shigella flexneri resistente a trimetoprima

  Translated title of the contribution: Intercontinental spread of a trimethoprim-resistant strain of Shigella flexneriNavia, M. M., Ruiz, J. & Vila, J., Oct 2003, In: Enfermedades Infecciosas y Microbiologia Clinica. 21, 8, p. 401-403 3 p.

  Research output: Contribution to journal › Article › peer-review
  7 Scopus citations

• Distintos mecanismos de resistencia asociados a integrones en aislamientos clínicos de Salmonella typhimurium

  Translated title of the contribution: Different antibiotic resistance mechanisms associated with integrons in clinical isolates of Salmonella typhimuriumGallardo, F., Ruiz, J., Soto, S. M., Jiménez De Anta, M. T. & Vila, J., Dec 2003, In: Revista Espanola de Quimioterapia. 16, 4, p. 398-402 5 p.

  Research output: Contribution to journal › Article › peer-review

  8 Scopus citations

• Ecotoxicidad del mercurio, cadmio y plomo sobre renacuajos de la rana de Junín Batrachophrynus macrostomus Peters 1873 (Anura: Leptodactylidae)

  Translated title of the contribution: Ecotoxicity of mercury, cadmium and lead on Lake Junin Giant Frog Batrachophrynus macrostomus Peters 1873 (Anura: Leptodactylidae) tadpolesIannacone, J. A. & Manyari, G., Jul 2003, In: Revista Brasileira de Toxicologia. 16, 1, p. 15-20 6 p.

  Research output: Contribution to journal › Article › peer-review

• Integron-mediated antibiotic multiresistance in Acinetobacter baumannii clinical isolates from Spain

  Ruiz, J., Navia, M. M., Casals, C., Sierra, J. M., De Anta Jiménez, M. T. & Vila, J., 1 Sep 2003, In: Clinical Microbiology and Infection. 9, 9, p. 907-911 5 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  28 Scopus citations

• In vitro activity of gemifloxacin against clinical isolates of Neisseria gonorrhoeae with and without mutations in the gyrA gene

  Ruiz, J., Marco, F., Sierra, J. M., Aguilar, L., Garcia-Mendez, E., Mensa, J., Jiménez De Anta, M. T. & Vila, J., 1 Jul 2003, In: International Journal of Antimicrobial Agents. 22, 1, p. 73-76 4 p.

  Research output: Contribution to journal › Article › peer-review
  10 Scopus citations

• In vitro fluoroquinolone-resistant mutants of Salmonella enterica serotype Enteritidis: Analysis of mechanisms involved in resistance

  Soto, S. M., Ruíz, J., Mendoza, M. C. & Vila, J., Nov 2003, In: International Journal of Antimicrobial Agents. 22, 5, p. 537-540 4 p.

  Research output: Contribution to journal › Article › peer-review
  24 Scopus citations

• Mechanisms of resistance to quinolones: Target alterations, decreased accumulation and DNA gyrase protection

  Ruiz, J., 1 May 2003, In: Journal of Antimicrobial Chemotherapy. 51, 5, p. 1109-1117 9 p.

  Research output: Contribution to journal › Review article › peer-review

  Open Access
  524 Scopus citations

• Moluscos del Perú

  Translated title of the contribution: The molluscs of PeruRamírez, R., Paredes, C. & Arenas, J., Jun 2003, In: Revista de Biologia Tropical. 51, SUPPL. 3, p. 225-284 60 p.

  Research output: Contribution to journal › Review article › peer-review

  81 Scopus citations

• Partial characterization of a transposon containing the tet(A) determinant in a clinical isolate of Acinetobacter baumannii

  Ribera, A., Roca, I., Ruiz, J., Gibert, I. & Vila, J., 1 Sep 2003, In: Journal of Antimicrobial Chemotherapy. 52, 3, p. 477-480 4 p.

  Research output: Contribution to journal › Article › peer-review
  50 Scopus citations

• Presence of the tet M determinant in a clinical isolate of Acinetobacter baumannii

  Ribera, A., Ruiz, J. & Vila, J., 1 Jul 2003, In: Antimicrobial Agents and Chemotherapy. 47, 7, p. 2310-2312 3 p.

  Research output: Contribution to journal › Article › peer-review
  44 Scopus citations

• Status of the Humboldt Penguin in Peru, 1999-2000

  Paredes, R., Zavalaga, C. B., Battistini, G., Majluf, P. & McGill, P., Jun 2003, In: Waterbirds. 26, 2, p. 129-138 10 p.

  Research output: Contribution to journal › Article › peer-review
  23 Scopus citations

• Traditional ecological knowledge and use of vegetation in southeastern Mexico: A case study from Solferino, Quintana Roo

  La Torre-Cuadros, M. D. L. A. & Islebe, G. A., Dec 2003, In: Biodiversity and Conservation. 12, 12, p. 2455-2476 22 p.

  Research output: Contribution to journal › Article › peer-review
  84 Scopus citations
• 2002

  Activity of clinafloxacin, compared with six other quinolones, against Acinetobacter baumannii clinical isolates

  Vila, J., Ribera, A., Marco, F., Ruiz, J., Mensa, J., Chaves, J., Hernandez, G. & Jimenez De Anta, M. T., 2002, In: Journal of Antimicrobial Chemotherapy. 49, 3, p. 471-477 7 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  39 Scopus citations

• Are quinolone-resistant uropathogenic Escherichia coli less virulent?

  Vila, J., Simon, K., Ruiz, J., Horcajada, J. P., Velasco, M., Barranco, M., Moreno, A. & Mensa, J., 1 Oct 2002, In: Journal of Infectious Diseases. 186, 7, p. 1039-1042 4 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  151 Scopus citations

• Characterization of an integron carrying a new class D β-lactamase (OXA-37) in Acinetobacter baumannii

  Navia, M. M., Ruiz, J. & Vila, J., 2002, In: Microbial Drug Resistance. 8, 4, p. 261-265 5 p.

  Research output: Contribution to journal › Article › peer-review
  44 Scopus citations

• Correlation between the activity of different fluoroquinolones and the presence of mechanisms of quinolone resistance in epidemiologically related and unrelated strains of methicillin-susceptible and -resistant Staphylococcus aureus

  Sierra, J. M., Marco, F., Ruiz, J., Jiménez de Anta, M. T. & Vila, J., 1 Dec 2002, In: Clinical Microbiology and Infection. 8, 12, p. 781-790 10 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  27 Scopus citations

• Diarrea, ¿una enfermedad de poca monta?

  Translated title of the contribution: Diarrhea - An unimportant disease? [1]Ruiz, J., Jul 2002, In: Enfermedades Emergentes. 4, 3, p. 152-153 2 p.

  Research output: Contribution to journal › Letter › peer-review

• Differences in virulence factors among clinical isolates of Escherichia coli causing cystitis and pyelonephritis in women and prostatitis in men

  Ruiz, J., Simon, K., Horcajada, J. P., Velasco, M., Barranco, M., Roig, G., Moreno-Martínez, A., Martínez, J. A., Jiménez de Anta, T., Mensa, J. & Vila, J., 1 Dec 2002, In: Journal of Clinical Microbiology. 40, 12, p. 4445-4449 5 p.

  Research output: Contribution to journal › Article › peer-review
  137 Scopus citations

• Distribution of β-lactamases in Acinetobacter baumannii clinical isolates and the effect of Syn 2190 (AmpC inhibitor) on the MICs of different β-lactam antibiotics

  Danes, C., Navia, M. M., Ruiz, J., Marco, F., Jurado, A., Jimenez de Anta, M. T. & Vila, J., Aug 2002, In: Journal of Antimicrobial Chemotherapy. 50, 2, p. 261-264 4 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  30 Scopus citations

• Effect of an efflux pump inhibitor on the MIC of nalidixic acid for Acinetobacter baumannii and Stenotrophomonas maltophilia clinical isolates [1]

  Ribera, A., Ruiz, J., Jimenez de Anta, M. T. & Vila, J., 2002, In: Journal of Antimicrobial Chemotherapy. 49, 4, p. 697-698 2 p.

  Research output: Contribution to journal › Letter › peer-review

  Open Access
  76 Scopus citations

• High prevalence of nalidixic acid resistant, ciprofloxacin susceptible phenotype among clinical isolates of Escherichia coli and other Enterobacteriaceae

  Ruiz, J., Gómez, J., Navia, M. M., Ribera, A., Sierra, J. M., Marco, F., Mensa, J. & Vila, J., 2002, In: Diagnostic Microbiology and Infectious Disease. 42, 4, p. 257-261 5 p.

  Research output: Contribution to journal › Article › peer-review
  41 Scopus citations

• In vitro activity of clinafloxacin in comparison with other quinolones against Stenotrophomonas maltophilia clinical isolates in the presence and absence of reserpine

  Ribera, A., Jurado, A., Ruiz, J., Marco, F., Del Valle, O., Mensa, J., Chaves, J., Hernández, G., Jiménez de Anta, M. T. & Vila, J., 2002, In: Diagnostic Microbiology and Infectious Disease. 42, 2, p. 123-128 6 p.

  Research output: Contribution to journal › Article › peer-review
  22 Scopus citations

• Molecular epidemiology and evolution of resistance to quinolones in Escherichia coli after prolonged administration of ciprofloxacin in patients with prostatitis

  Horcajada, J. P., Vila, J., Moreno-Martínez, A., Ruiz, J., Martínez, J. A., Sánchez, M., Soriano, E. & Mensa, J., 2002, In: Journal of Antimicrobial Chemotherapy. 49, 1, p. 55-59 5 p.

  Research output: Contribution to journal › Article › peer-review
  36 Scopus citations

• Mutations in gyrA and parC QRDRs are not relevant for quinolone resistance in epidemiological unrelated Stenotrophomonas maltophilia clinical isolates

  Ribera, A., Doménech-Sánchez, A., Ruiz, J., Benedi, V. J., Jimenez De Anta, M. T. & Vila, J., 2002, In: Microbial Drug Resistance. 8, 4, p. 245-251 7 p.

  Research output: Contribution to journal › Article › peer-review
  36 Scopus citations

• Occurrence of a sibling species complex within neotropical lymnaeids, snail intermediate hosts of fascioliasis

  Durand, P., Pointier, J. P., Escoubeyrou, K., Arenas, J. A., Yong, M., Amarista, M., Bargues, M. D., Mas-Coma, S. & Renaud, F., Sep 2002, In: Acta Tropica. 83, 3, p. 233-240 8 p.

  Research output: Contribution to journal › Article › peer-review
  21 Scopus citations

• Patterns of egg laying and breeding success in Humboldt Penguins (Spheniscus humboldti) at Punta San Juan, Peru

  Paredes, R., Zavalaga, C. B. & Boness, D. J., 2002, In: Auk. 119, 1, p. 244-250 7 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  28 Scopus citations

• Prevalence of the sat gene among clinical isolates of Shigella spp. causing travelers' diarrhea: Geographical and specific differences [1]

  Ruiz, J., Navia, M. M., Vila, J. & Gascón, J., 2002, In: Journal of Clinical Microbiology. 40, 4, p. 1565-1566 2 p.

  Research output: Contribution to journal › Letter › peer-review
  21 Scopus citations

• Status of the Red-legged Cormorant in Peru: What factors affect distribution and numbers?

  Zavalaga, C. B., Frere, E. & Gandini, P., 2002, In: Waterbirds. 25, 1, p. 8-15 8 p.

  Research output: Contribution to journal › Article › peer-review
  17 Scopus citations
• 2001

  Characterization of sparfloxacin-resistant mutants of Staphylococcus aureus obtained in vitro

  Ruiz, J., Sierra, J. M., De Anta, M. T. J. & Vila, J., 2001, In: International Journal of Antimicrobial Agents. 18, 2, p. 107-112 6 p.

  Research output: Contribution to journal › Article › peer-review
  16 Scopus citations

• Decreased invasive capacity of quinolone-resistant Escherichia coli in patients with urinary tract infections

  Velasco, M., Horcajada, J. P., Mensa, J., Moreno-Martinez, A., Vila, J., Martinez, J. A., Ruiz, J., Barranco, M., Roig, G. & Soriano, E., Nov 2001, In: Clinical Infectious Diseases. 33, 10, p. 1682-1686 5 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  66 Scopus citations

• Frequency of selection of fluoroquinolone-resistant mutants of Neisseria gonorrhoeae exposed to gemifloxacin and four other quinolones

  Ruiz, J., Jurado, A., Garcia-Méndez, E., Marco, F., Aguilar, L., Jiménez De Anta, M. T. & Vila, J., 2001, In: Journal of Antimicrobial Chemotherapy. 48, 4, p. 545-548 4 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  11 Scopus citations

• In vitro activity of rifaximin against bacterial enteropathogens causing diarrhoea in children under 5 years of age in Ifakara, Tanzania [9]

  Sierra, J. M., Navia, M. M., Vargas, M., Urassa, H., Schellemberg, D., Gascón, J., Vila, J. & Ruiz, J., 2001, In: Journal of Antimicrobial Chemotherapy. 47, 6, p. 904-905 2 p.

  Research output: Contribution to journal › Letter › peer-review

  20 Scopus citations