Listar por autor "Ballard, Sarah-Blythe"

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  • Case-Case Analysis Using 7 Years of Travelers' Diarrhea Surveillance Data: Preventive and Travel Medicine Applications in Cusco, Peru 
    Jennings, Mary Carol; Tilley, Drake H.; Ballard, Sarah-Blythe; Villanueva, Miguel; Maldonado Costa, Fernando; Lopez, Martha; Steinberg, Hannah E.; Luna, C. Giannina; Meza, Rina; Silva, Maria E.; Gilman, Robert Hugh; Simons, Mark P.; Maves, Ryan C.; Cabada, Miguel M. (American Society of Tropical Medicine and Hygiene, 2017)
    In Cusco, Peru, and South America in general, there is a dearth of travelers' diarrhea (TD) data concerning the clinical features associated with enteropathogen-specific infections and destination-specific risk behaviors. ...
  • Distribution and identification of sand flies naturally infected with Leishmania from the Southeastern Peruvian Amazon 
    Zorrilla, Victor; De Los Santos, Maxy B.; Espada, Liz; Santos, Rocío Del Pilar; Fernandez, Roberto; Urquia, Albino; Stoops, Craig A.; Ballard, Sarah-Blythe; Lescano Guevara, Andres Guillermo; Vásquez, Gissella M.; Valdivia, Hugo O. (Public Library of Science, 2017)
    BACKGROUND: Cutaneous leishmaniasis (CL) is an important health problem in the New World affecting civilian and military populations that are frequently exposed in endemic settings. The Peruvian region of Madre de Dios ...
  • Enteropathogen Changes After Rotavirus Vaccine Scale-up. 
    Ballard, Sarah-Blythe; Requena, David; Mayta, Holger; Sanchez, Gerardo J.; Oyola-Lozada, Maria G.; Colquechagua Aliaga, Fabiola D.; Cabrera, Lilia; Vittet Mondonedo, Macarena D.; Taquiri, Carmen; Tilley, Capt Drake H.; Simons, Cdr Mark P.; Meza, Rina A.; Bern, Caryn; Saito, Mayuko; Figueroa-Quintanilla, Dante A.; Gilman, Robert Hugh (American Academy of Pediatrics, 2022)
    OBJECTIVES: To inform next steps in pediatric diarrhea burden reduction by understanding the shifting enteropathogen landscape after rotavirus vaccine implementation. METHODS: We conducted a case-control study of 1788 ...
  • Epidemiology and Genetic Characterization of Noroviruses among Adults in an Endemic Setting, Peruvian Amazon Basin, 2004-2011 
    Ballard, Sarah-Blythe; Reaves, Erik J.; Luna, C. Giannina; Silva, Maria E.; Rocha, Claudio; Heitzinger, Kristen; Saito, Mayuko; Apaza, Sonia; Espetia, Susan; Blazes, David L.; Tilley, Drake H.; Guzman Aguilar, Rene C.; Gilman, Robert Hugh; Bausch, Daniel G. (Public Library of Science, 2015)
    BACKGROUND: Successful vaccination strategies against norovirus will require understanding the burden of disease and relevant genotypes in populations. However, few data are available from cohort studies of adults living ...
  • Prevalence of and Factors Associated with Negative Microscopic Diagnosis of Cutaneous Leishmaniasis in Rural Peru 
    Lamm, Ryan; Alves, Clark; Perrotta, Grace; Murphy, Meagan; Messina, Catherine; Sanchez, Juan F.; Perez, Erika; Rosales, Luis Angel; Lescano Guevara, Andres Guillermo; Smith, Edward; Valdivia, Hugo; Fuhrer, Jack; Ballard, Sarah-Blythe (American Society of Tropical Medicine and Hygiene, 2018)
    Cutaneous leishmaniasis is endemic to South America where diagnosis is most commonly conducted via microscopy. Patients with suspected leishmaniasis were referred for enrollment by the Ministry of Health (MoH) in Lima, ...
  • Tropical and travel-associated norovirus: current concepts 
    Ballard, Sarah-Blythe; Saito, Mayuko; Mirelman, Andrew J.; Bern, Caryn; Gilman, Robert Hugh (Wolters Kluwer Health, 2015)
    PURPOSE OF REVIEW: We highlight recent advances relevant to understanding norovirus infections in the tropics, both in populations living in developing settings and travelers to these regions. RECENT FINDINGS: Because of ...

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