Prevalence and Genetic Diversity of Norovirus Among Patients With Acute Diarrhea in Guatemala

Details

• Alternative Title:
  J Med Virol
• Personal Author:
  Estévez, Alejandra ; Arvelo, Wences ; Hall, Aron J. ; López, María R. ; López, Beatriz ; Reyes, Lissette ; Moir, Juan Carlos ; Gregoricus, Nicole ; Vinjé, Jan ; Parashar, Umesh D. ; Lindblade, Kim A.
• Description:
  Noroviruses (NoVs) are a leading cause of acute gastroenteritis outbreaks and sporadic cases of diarrhea in industrialized countries. To study the prevalence and genetic diversity of NoVs in Guatemala, stool specimens were collected from hospitalized and ambulatory patients presenting with diarrhea (≥3 loose or liquid stools in a 24-hr period) who were enrolled in a prospective surveillance system in the Departments of Santa Rosa (October 2007 to August 2010) and Quetzaltenango (August 2009 to August 2010), Guatemala. Specimens were tested for rotavirus, enteric bacteria, and parasites by routine methods and for genogroups I and II NoV by real-time reverse transcription-PCR. A total of 2,403 stool specimens were collected from hospitalized (n = 528) and ambulatory patients (n = 1,875). Overall, 341 (14%) samples tested positive for NoVs including 114 (22%) hospitalized and 227 (12%) ambulatory patients. NoVs disease peaked during the winter (November-January) months. Among the 341 NoVs-positive patients, 32 (9%) were also positive for rotavirus, 32 (9%) for bacteria, and 9 (3%) for protozoa. Nucleotide sequences were obtained from 84 samples collected from hospitalized children aged <5 years of age, which could be grouped into nine GII and three GI genotypes with GII.4 (74%) and GI.8 (10%) being the most common. This is the first study on the prevalence of NoVs among hospitalized and ambulatory patients with diarrhea in Guatemala. The findings highlight the need to implement laboratory diagnostics for NoVs to improve appropriate clinical management of diarrheal diseases and guide vaccine development.
• Subjects:
  Adolescent Adult Aged Aged, 80 And Over Caliciviridae Infections Child Child, Preschool Coinfection Diarrhea Feces Female Genetic Variation Genotype Humans Infant Infant, Newborn Male Middle Aged Norovirus Prevalence Real-Time Polymerase Chain Reaction Retrospective Studies Reverse Transcriptase Polymerase Chain Reaction Seasons Young Adult

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• Source:
  J Med Virol. 85(7):1293-1298
• Pubmed ID:
  23595770
• Pubmed Central ID:
  PMC4664073
• Document Type:
  Journal Article
• Funding:
  CC999999/Intramural CDC HHSUnited States/ ; U01 GH000028/GH/CGH CDC HHSUnited States/ ; UO1 GH000028-02/GH/CGH CDC HHSUnited States/
• Place as Subject:
  Guatemala
• Volume:
  85
• Issue:
  7
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha256:5040dc3e66e5e99249989a90ee07485b1b4dd592be02439d89a0a9df0d242f9a
• Download URL:
  https://stacks.cdc.gov/view/cdc/36241/cdc_36241_DS1.pdf
• File Type:
  [PDF - 383.50 KB ]