character: Nurse Sarah Williams
topic: Vaccine Development Process
grade: 9
subject: Biology
LearnActions
SearchCreate
character: Dr. Emily Chen
topic: Immune Response to Vaccines
grade: 9
subject: Biology
LearnActions
SearchCreate
character: Professor Mark Johnson
topic: History of Vaccination
grade: 9
subject: Biology
LearnActions
SearchCreate
character: Research Scientist Tom Patel
topic: Clinical Trials for Vaccine Approval
grade: 9
subject: Biology
LearnActions
SearchCreate