Vaccine Efficacy Efficacy Immunization Vaccine Exemptions Child Health Effectiveness Childhood Immunization Public Health Childhood Vaccination Immunity Uptake Rates Measles Prevention Public Health Recommendations Childhood Vaccinations Childhood Immunizations Vaccine Safety Vaccine Coverage Booster Shots Immunization Rates Vaccine Hesitancy Measles Risks Measles Outbreaks Public Health Policy Preventive Medicine Dosage Recommendations
Low MMR coverage coupled with importations has fueled new clusters, prompting authorities to step up contact tracing alongside expanded immunization campaigns.