Question:easy
The incubation period of measles is?
The incubation period of measles is?
Show Hint
Think roughly 10 days to fever and 14 days to the rash.
Updated On: Jun 24, 2026
- 18 to 72 hours
- 10 to 14 days
- 3 to 4 days
- 20 to 25 days
Show Solution
The Correct Option is B
Solution and Explanation
Step 1: Recall the natural history of measles, a droplet-spread paramyxovirus infection in which fever and Koplik spots precede the rash.
Step 2: The standard teaching is an incubation of around 10 to 14 days: about 10 days from contact to the first fever and about 14 days to the full-blown rash. This points straight to the 10 to 14 day option.
Step 3: The remaining choices fail the test. An 18 to 72 hour or 3 to 4 day window is far too short for measles and suits other acute infections, while 20 to 25 days overshoots the known period.
Step 4: Therefore the correct incubation period is 10 to 14 days.
\[\boxed{\text{10 to 14 days}}\]
Step 2: The standard teaching is an incubation of around 10 to 14 days: about 10 days from contact to the first fever and about 14 days to the full-blown rash. This points straight to the 10 to 14 day option.
Step 3: The remaining choices fail the test. An 18 to 72 hour or 3 to 4 day window is far too short for measles and suits other acute infections, while 20 to 25 days overshoots the known period.
Step 4: Therefore the correct incubation period is 10 to 14 days.
\[\boxed{\text{10 to 14 days}}\]
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