Measles, mumps and rubella: prevention
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How long am I infectious?

You can pass on these diseases before and after you have symptoms.
 
 
 
 
 
Source:
Richardson M, Elliman D, MaGuire H, et al.
Evidence base of incubation periods, periods of infectiousness and exclusion policies for the control of communicable diseases in schools and preschools.
Pediatric Infectious Disease Journal 2001; 20: 380-391.
 
 
 
 
 
1

Measles: You are infectious from one day before symptoms begin until about five days after the rash appears. So you shouldn't mix with other people for five days after a rash begins.

Mumps: You are infectious from a few days before your
 
 
 
 
 
gland
A gland is any group of cells in the body that makes and releases something for use by another part of the body. For example, the thyroid gland makes a hormone called thyroxine. This acts on receptors within cells. By acting on the receptors it gives the cells a message to speed up their metabolism and work harder.
 
 
 
 
 
glands start to swell until about five days after. So you shouldn't mix with other people once mumps is suspected.

Rubella: You are infectious from one week before symptoms begin until five days after the rash appears. So you shouldn't mix with other people for five days after a rash begins.

Sources for the information on this page:
  1. Richardson M, Elliman D, MaGuire H, et al.Evidence base of incubation periods, periods of infectiousness and exclusion policies for the control of communicable diseases in schools and preschools.Pediatric Infectious Disease Journal 2001; 20: 380-391.
This information was last updated on Aug 29, 2008
BMJ Group
This information is for educational use only, and is not a substitute for prompt professional medical advice. Readers should always consult a physician or other professional for advice and treatment.
© BMJ Publishing Group Limited 2009. All rights reserved.