Burden of Norovirus and Rotavirus in Children After Rotavirus Vaccine Introduction, Cochabamba, Bolivia

Casey L. McAtee Department of Pediatrics, Louisiana State University Health Sciences Center, New Orleans, Louisiana; Department of Surgery, New York University, New York; Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland; Laboratorios de Investigación y Desarrollo, Universidad Peruana Cayetano Heredia, Asociación Benéfica PRISMA, Lima, Peru; CEADES Salud y Medio Ambiente, Cochabamba, Bolivia; Department of Epidemiology and Biostatistics, University of California San Francisco, San Francico, California; Hospital Albina R. de Patiño, Cochabamba, Bolivia

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Rachel Webman Department of Pediatrics, Louisiana State University Health Sciences Center, New Orleans, Louisiana; Department of Surgery, New York University, New York; Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland; Laboratorios de Investigación y Desarrollo, Universidad Peruana Cayetano Heredia, Asociación Benéfica PRISMA, Lima, Peru; CEADES Salud y Medio Ambiente, Cochabamba, Bolivia; Department of Epidemiology and Biostatistics, University of California San Francisco, San Francico, California; Hospital Albina R. de Patiño, Cochabamba, Bolivia

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Robert H. Gilman Department of Pediatrics, Louisiana State University Health Sciences Center, New Orleans, Louisiana; Department of Surgery, New York University, New York; Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland; Laboratorios de Investigación y Desarrollo, Universidad Peruana Cayetano Heredia, Asociación Benéfica PRISMA, Lima, Peru; CEADES Salud y Medio Ambiente, Cochabamba, Bolivia; Department of Epidemiology and Biostatistics, University of California San Francisco, San Francico, California; Hospital Albina R. de Patiño, Cochabamba, Bolivia

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Carolina Mejia Department of Pediatrics, Louisiana State University Health Sciences Center, New Orleans, Louisiana; Department of Surgery, New York University, New York; Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland; Laboratorios de Investigación y Desarrollo, Universidad Peruana Cayetano Heredia, Asociación Benéfica PRISMA, Lima, Peru; CEADES Salud y Medio Ambiente, Cochabamba, Bolivia; Department of Epidemiology and Biostatistics, University of California San Francisco, San Francico, California; Hospital Albina R. de Patiño, Cochabamba, Bolivia

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Caryn Bern Department of Pediatrics, Louisiana State University Health Sciences Center, New Orleans, Louisiana; Department of Surgery, New York University, New York; Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland; Laboratorios de Investigación y Desarrollo, Universidad Peruana Cayetano Heredia, Asociación Benéfica PRISMA, Lima, Peru; CEADES Salud y Medio Ambiente, Cochabamba, Bolivia; Department of Epidemiology and Biostatistics, University of California San Francisco, San Francico, California; Hospital Albina R. de Patiño, Cochabamba, Bolivia

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Sonia Apaza Department of Pediatrics, Louisiana State University Health Sciences Center, New Orleans, Louisiana; Department of Surgery, New York University, New York; Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland; Laboratorios de Investigación y Desarrollo, Universidad Peruana Cayetano Heredia, Asociación Benéfica PRISMA, Lima, Peru; CEADES Salud y Medio Ambiente, Cochabamba, Bolivia; Department of Epidemiology and Biostatistics, University of California San Francisco, San Francico, California; Hospital Albina R. de Patiño, Cochabamba, Bolivia

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Susan Espetia Department of Pediatrics, Louisiana State University Health Sciences Center, New Orleans, Louisiana; Department of Surgery, New York University, New York; Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland; Laboratorios de Investigación y Desarrollo, Universidad Peruana Cayetano Heredia, Asociación Benéfica PRISMA, Lima, Peru; CEADES Salud y Medio Ambiente, Cochabamba, Bolivia; Department of Epidemiology and Biostatistics, University of California San Francisco, San Francico, California; Hospital Albina R. de Patiño, Cochabamba, Bolivia

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Mónica Pajuelo Department of Pediatrics, Louisiana State University Health Sciences Center, New Orleans, Louisiana; Department of Surgery, New York University, New York; Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland; Laboratorios de Investigación y Desarrollo, Universidad Peruana Cayetano Heredia, Asociación Benéfica PRISMA, Lima, Peru; CEADES Salud y Medio Ambiente, Cochabamba, Bolivia; Department of Epidemiology and Biostatistics, University of California San Francisco, San Francico, California; Hospital Albina R. de Patiño, Cochabamba, Bolivia

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Mayuko Saito Department of Pediatrics, Louisiana State University Health Sciences Center, New Orleans, Louisiana; Department of Surgery, New York University, New York; Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland; Laboratorios de Investigación y Desarrollo, Universidad Peruana Cayetano Heredia, Asociación Benéfica PRISMA, Lima, Peru; CEADES Salud y Medio Ambiente, Cochabamba, Bolivia; Department of Epidemiology and Biostatistics, University of California San Francisco, San Francico, California; Hospital Albina R. de Patiño, Cochabamba, Bolivia

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Roxanna Challappa Department of Pediatrics, Louisiana State University Health Sciences Center, New Orleans, Louisiana; Department of Surgery, New York University, New York; Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland; Laboratorios de Investigación y Desarrollo, Universidad Peruana Cayetano Heredia, Asociación Benéfica PRISMA, Lima, Peru; CEADES Salud y Medio Ambiente, Cochabamba, Bolivia; Department of Epidemiology and Biostatistics, University of California San Francisco, San Francico, California; Hospital Albina R. de Patiño, Cochabamba, Bolivia

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Richard Soria Department of Pediatrics, Louisiana State University Health Sciences Center, New Orleans, Louisiana; Department of Surgery, New York University, New York; Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland; Laboratorios de Investigación y Desarrollo, Universidad Peruana Cayetano Heredia, Asociación Benéfica PRISMA, Lima, Peru; CEADES Salud y Medio Ambiente, Cochabamba, Bolivia; Department of Epidemiology and Biostatistics, University of California San Francisco, San Francico, California; Hospital Albina R. de Patiño, Cochabamba, Bolivia

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Jose P. Ribera Department of Pediatrics, Louisiana State University Health Sciences Center, New Orleans, Louisiana; Department of Surgery, New York University, New York; Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland; Laboratorios de Investigación y Desarrollo, Universidad Peruana Cayetano Heredia, Asociación Benéfica PRISMA, Lima, Peru; CEADES Salud y Medio Ambiente, Cochabamba, Bolivia; Department of Epidemiology and Biostatistics, University of California San Francisco, San Francico, California; Hospital Albina R. de Patiño, Cochabamba, Bolivia

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Daniel Lozano Department of Pediatrics, Louisiana State University Health Sciences Center, New Orleans, Louisiana; Department of Surgery, New York University, New York; Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland; Laboratorios de Investigación y Desarrollo, Universidad Peruana Cayetano Heredia, Asociación Benéfica PRISMA, Lima, Peru; CEADES Salud y Medio Ambiente, Cochabamba, Bolivia; Department of Epidemiology and Biostatistics, University of California San Francisco, San Francico, California; Hospital Albina R. de Patiño, Cochabamba, Bolivia

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Faustino Torrico Department of Pediatrics, Louisiana State University Health Sciences Center, New Orleans, Louisiana; Department of Surgery, New York University, New York; Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland; Laboratorios de Investigación y Desarrollo, Universidad Peruana Cayetano Heredia, Asociación Benéfica PRISMA, Lima, Peru; CEADES Salud y Medio Ambiente, Cochabamba, Bolivia; Department of Epidemiology and Biostatistics, University of California San Francisco, San Francico, California; Hospital Albina R. de Patiño, Cochabamba, Bolivia

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The effectiveness of rotavirus vaccine in the field may set the stage for a changing landscape of diarrheal illness affecting children worldwide. Norovirus and rotavirus are the two major viral enteropathogens of childhood. This study describes the prevalence of norovirus and rotavirus 2 years after widespread rotavirus vaccination in Cochabamba, Bolivia. Stool samples from hospitalized children with acute gastroenteritis (AGE) and outpatients aged 5–24 months without AGE were recruited from an urban hospital serving Bolivia's third largest city. Both viruses were genotyped, and norovirus GII.4 was further sequenced. Norovirus was found much more frequently than rotavirus. Norovirus was detected in 69/201 (34.3%) of specimens from children with AGE and 13/71 (18.3%) of those without diarrhea. Rotavirus was detected in 38/201 (18.9%) of diarrheal specimens and 3/71 (4.2%) of non-diarrheal specimens. Norovirus GII was identified in 97.8% of norovirus-positive samples; GII.4 was the most common genotype (71.4% of typed specimens). Rotavirus G3P[8] was the most prevalent rotavirus genotype (44.0% of typed specimens) and G2P[4] was second most prevalent (16.0% of typed specimens). This community is likely part of a trend toward norovirus predominance over rotavirus in children after widespread vaccination against rotavirus.

Author Notes

* Address correspondence to Casey L. McAtee, Department of Pediatrics, Louisiana State University Health Sciences Center, 200 Henry Clay Ave., New Orleans, LA 70118. E-mail: caseyleemcatee@gmail.com

Financial support: This work was supported by the short-term training grant in infectious and tropical diseases (no. 5T35 AI065385) awarded to Robert H. Gilman by the National Institute of Allergy and Infectious Diseases.

Authors' addresses: Casey L. McAtee, Department of Pediatrics, Louisiana State University Health Sciences Center, New Orleans, LA, E-mail: cmcate@lsuhsc.edu. Rachel Webman, Department of Surgery, New York University, New York, NY, E-mail: rachel.webman@gmail.com. Robert H. Gilman, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, and Laboratorios de Investigación y Desarrollo, Universidad Peruana Cayetano Heredia, Asociación Benéfica PRISMA, Lima, Peru, E-mail: gilmanbob@gmail.com. Carolina Mejia, CEADES Salud y Medio Ambiente, Cochabamba, Bolivia, E-mail: carobemeva@hotmail.com. Caryn Bern, Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, E-mail: caryn.bern2@ucsf.edu. Apaza Sonia and Espetia Susan, Laboratorios de Investigación y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, Peru, E-mails: soninha1234567@gmail.com and s.espetia@gmail.com. Pajuelo Mónica, Unidad de Bioinformática y Biología Molecular, Laboratorios de Investigación y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, Peru, E-mail: mjpajuelo@gmail.com. Saito Mayuko, Department of Virology, Tohoku University Graduate School of Medicine, Laboratorios de Investigación y Desarrollo, Universidad Peruana Cayetano Heredia, Asociación Benéfica PRISMA, Lima, Peru, E-mail: msaitop@gmail.com. Roxanna Challappa and Daniel Lozano, CEADES Salud y Medio Ambiente, Cochabamba, Bolivia, E-mails: carobemeva@hotmail.com and danlozanob@gmail.com. Richard Soria and Jose P. Ribera, Hospital Albina R. de Patiño, Cochabamba, Bolivia, E-mails: rsoriam@gmail.com and j.ribera@fundacionpatino.org. Faustino Torrico, Universidad Mayor de San Simon, Cochabamba, Bolivia, E-mail: foxtorrico@yahoo.com.

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