Describe the incubation periods, onset of prodromal symptoms, duration, and characteristics of rashes and other clinical symptoms of the following viral diseases: rubella (German measles), rubeola (measles), roseola (exanthema subitum), and varicella (chickenpox). List the CDC-recommended childhood vaccination schedule applicable.
Use at least one scholarly source other than your textbook to connect your response to national guidelines and evidence-based research in support of your ideas.