Measles is infective for: March 2009
Correct Answer: Four days before and five days after rash
Description: Ans. B: Four days before and five days after rash Measles/English Measles is spread through respiration (contact with fluids from an infected person's nose and mouth, either directly or through aerosol transmission), and is highly contagious -- 90% of people without immunity sharing a house with an infected person will catch it. The infection has an average incubation period of 14 days (range 6-19 days) and Period of communicability in measles is approximately 4 days before and 5 days after the appearance of the rash. Measles is an infection of the respiratory system caused by a virus, specifically a paramyxovirus of the genus Morbillivirus. Morbilliviruses, like other paramyxoviruses, are enveloped, single-stranded, negative-sense RNA viruses. Symptoms include fever, cough, runny nose, red eyes and a generalized, maculopapular, erythematous rash.
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