Disease
Measles (Rubeola)
Agent: Virus
Source: Respiratory tract secretions, blood, and urine of infected person
Transmission: Usually by direct contact with droplets of infected person
Incubation period: 10 to 20 days
Period of communicability: From 4 days before to 5 days after rash appears but mainly during prodromal (catarrhal) stage
Koplik spots
Mumps
Agent: Paramyxovirus
Source: Saliva of infected persons
Transmission: Direct contact with or droplet spread from an infected person
Incubation period: 14-21 days
Period of communicability: Most communicable immediately before and after swelling begins
