This most recent exposure comes from a sibling of a child who was diagnosed with measles after a trip to Europe in late August.
Health officials say the new case involves a child who wasn't completely vaccinated because they had one of the recommended two doses of vaccine and at an age earlier than recommended. That child was then exposed to an unvaccinated sibling who had the measles -- that case was the one previously disclosed by health officials on Aug. 25.
The child was at the Central Park Tennis Club in Kirkland on Aug. 28 and 29 from 4-8 p.m. and on Aug. 30 from 4-7:30 p.m. They were also at the AV Performance Tennis Club in Bellevue from 9 a.m. to 1 p.m. on Aug. 30, and then at Eastside Tennis Center from 2:30-4:45 p.m. that same day.
If you were in these areas at the times above and are not immune to measles, the most likely time you would become sick is between Sept. 4 and Sept. 20, health officials said. If you feel like you were exposed, you should double check you've been vaccinated and to call your doctor immediately if you develop an illness with fever or illness with an unexplained rash.