Measles is infectious during -

Period of communicability: Chickenpox: 1 - 2 days before to 4 - 5 days after the appearance of the rash Measles: 4 days before to 5 days after the appearance of the rash Rubella: 7 days before symptoms to 7 days after the appearance of the rash Mumps: 4 - 6 days before symptoms to 7 days thereafter Influenza: 1 - 2 days before to 1 - 2 days after onset of symptoms Diphtheria: 14 - 28 days from disease onset Pertussis: 7 days after exposure to 3 weeks after the paroxysmal stage Poliomyelitis: 7 - 10 days before and after the onset of symptoms Hepatitis A: 2 weeks before to 1 week after onset of jaundice Hepatitis B: Till disappearance of HBs Ag & appearance of anti-HBs Meningococcal: Until absent from nasal and throat discharge Tuberculosis: As long as not treated