Effectiveness of Rotavirus Immunization in Nicaragua
The purpose of the investigators study is to compare the rates of childhood diarrhea at the community level before and after the rotavirus vaccination program in León, Nicaragua. From preliminary studies, the investigators anticipate about a 28% reduction in diarrhea following the vaccination program among children who received the vaccine, and a smaller reduction in diarrhea among children who did not receive the vaccine, due to the effects of "herd immunity". In addition, the investigators will collect stool samples from children who develop diarrhea in order determine the etiology of childhood diarrhea in the post-rotavirus immunization era.
|Study Design:||Observational Model: Cohort
Time Perspective: Prospective
|Official Title:||Effectiveness of Rotavirus Immunization at the Community Level in Nicaragua|
Stool samples obtained from children who develop diarrhea during the course of the study. In addition, stool samples will also be collected from normal children to serve as controls in laboratory analysis.
|Study Start Date:||January 2010|
|Study Completion Date:||January 2011|
|Primary Completion Date:||January 2011 (Final data collection date for primary outcome measure)|
|Principal Investigator:||Sylvia Becker-Dreps, MD||University of North Carolina, Chapel Hill|