No events occured in clinic. Parents called clinic to report that baby had turned pale and vomited x1 approximately 0930 the morning of the vaccine. Infant was at home. No respiratory distress reported. Approximately 1 hour after administration of vaccine. Advised to bring infant in to assess. Infant brought back to clinic at approximately 1040 am on 1/2/25. Exam was WNL, respirations were noted to be even and unlabored at time of exam. Injection site without redness or swelling. VS Stable.