Period of isolation for Measles is from
Correct Answer: Onset of catarrhal symptoms to 3 days after
Description: The period of communicability is approximately 4 days before and5 days after the appearance of the rash. Isolation of the patient for a week from the onset of rash is sufficient. The rash appears about 4 days after the onset of prodromal stage/ catarrhal symptoms, Hence the best answer in this case would be 1. Incubation period of Measles - 10-14 days Also remember, period of communicability of: Chicken pox : 2 days before & 5 days after appearance of rash Rubella : 4 days before symptoms & 7 days post rash Mumps : 4 days before symptoms & 7 days post rash Influenza : 1-2 days before & after symptoms Diphtheria : 14 - 28 days from onset Peussis : 7 days post-exposure to 3-weeks post paroxysmal stage Meningococcus :Until absent from nasal / throat discharge Polio : 7-10 days before & after symptoms Hepatitis B : Till disappearance of HBS-Ag & appearance of Anti- HBS Ab TB : As long as not treated HIV : Life long Tetanus : NONE.
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