Measles RNA detection post-rash onset

This figure illustrates the time-frame that measles virus is likely to be detected in patient samples following the onset of rash symptoms.

This can guide collection of optimal samples during the progression of clinical measles, and in conjunction with serology may aid interpretation of test results.

Investigation of Optimal Specimen Type and Sampling Time for Detection of Measles Virus RNA during a Measles Epidemic.
Michaela A. Riddell*, Doris Chibo, Heath A. Kelly, Michael G. Catton, and Christopher J. Birch

J. Clin. Microbiol. January 2001 vol. 39 no. 1 375-376