Contact Tracing Isolation Protocols Epidemiology Emergency Response Mortality Rates Response Strategies Vaccine Development Epidemiological Patterns School Closures Vaccination Strategies Control Measures Sanitation Procedures Measles Outbreak Response Containment Strategies Isolation Measures Community Health School Health Policies Measles Outbreaks Surveillance Reports Vaccination Campaigns Response Coordination Travel Advisories Norovirus Disease Transmission Avian Influenza Contamination Geographic Spread