<prompt> Rubella is caused byOhomyxovirusParamyxovirusToga virusArbovirus group B  <response>: Family Togaviridae includes Genus Alphavirus -- Western Equine Encephalitis WEE , Eastern Equine Encephalitis EEE , Venezuelan Equine Encephalitis VEE and Chikungunya fever CGF Genus Rubivirus -- Rubella Rubella: Aka German measles. I.P - 14-21 days Source : cases Mode of transmission : Respiratory air droplets Period of communicability: 1 week before symptoms 1 week after rash. Vaccine: Live attenuated; RA 273 strain 