Isolation period of measles:-
Onset of prodromal stage until 7th day of rash
Eruptive stage until 2 days of rash
Onset of prodromal phase until 3rd day of rash
Eruptive stage until 7th day of rash
Isolation period of measles is Onset of prodromal phase until 3rd day of rash. Maximum communicability occurs from onset of prodrome through the first 3-4 days of rash.Prodromal phase-stage last for 4 days(from 10th to 14th day of infection) characterized by Fever, Koplik spots , coryza, nasal discharge, redness .Incubation period of measles is 10 daysEruptive phase- Maculopapular rash appear after 4 days of fever (14day after infection)