Immune Response to Rotavirus Vaccine After a Supplemental Dose Given at 9 Months of Age With Local EPI Vaccines in Mali

Inclusion Criteria: * At least 9 months of age through 11 months of age (has not yet reached 1st birthday) at the time of administration of study vaccines. * Residence in the study area. * At least one parent or guardian who is at least 18 years of age and is willing to provide written informed consent. * Generally healthy and free of obvious health problems as established by medical history including physical examination and clinical judgment of the investigator. * A child who is fully vaccinated according to the local EPI schedule (exclusive of oral polio vaccine birth dose). * A parent or guardian is willing to attend all planned study visits or allow home visits and mobile phone contacts, as required by the protocol. Exclusion Criteria: * Previous receipt any measles-containing vaccine. * Previous receipt of any yellow fever vaccine. * Previous receipt of any meningitis vaccine. * Receipt of rotavirus vaccine within the past 90 days. * Administration of any other vaccine within 8 weeks prior to administration of study vaccines or planned vaccination during the 4 weeks after study vaccination. * History of allergic disease or known hypersensitivity to any component of the study vaccines and/or following administration of vaccines included in the local program of immunization * Use of any investigational or non-registered drug within 90 days prior to the administration of study vaccines. * Administration of immunoglobulins and/or any blood products within 90 days prior t…