(FOX 2) - Another measles case has been identified, this time in Washtenaw County.
The discovery brings the state count to 40 total, after two recently initially-identified cases were misdiagnosed. However, the new case is unrelated to Michigan's outbreak and is assumed to be related to international travel.
The two redacted cases are of children in Washtenaw County and Oakland County, which authorities said had a false positive test result.
Officials say both children had been recently vaccinated and that initial testing came back positive for measles, but that actually their vaccine had caused just a mild rash and fever - not an actual measles diagnosis. The MMR vaccine contains a weakened live virus that cannot cause measles but can result in positive lab tests.
However, the outbreak continues to grow with another case being identified. Following the discovery of the 40th case, health officials are warning of possible exposure sites at several locations including DTW Airport and the University of Michigan campus:
- University of Michigan Intramural Sports Building, 606 E Hoover Avenue, Ann Arbor on April 1, 11 a.m. to 3 p.m., April 3, 10 a.m. to 2 p.m., and April 4, 4 to 7 p.m.
- Lucky’s Market, 1919 S Industrial Highway, Ann Arbor on April 1, 1 to 4 p.m. and April 6, 1:30 to 4:30 p.m.
- Lan City Hand Pulled Noodle, 2612 Washtenaw Avenue, Ypsilanti, April 2, 6 to 10 p.m.
- Whole Foods, 3135 Washtenaw Ave., Ann Arbor on April 2, 8 to 11 p.m.
- University of Michigan North Quad Complex, 105 S State Street, Ann Arbor on April 3 from 8:30 to 11:30 a.m.
- NeoPapalis, 500 E William Street, Ann Arbor, April 3, 9 to 11 p.m.
- Mani Osteria and Bar, 341 E Liberty Street, Ann Arbor on April 4, 11 a.m. to 2 p.m.
- Encore Records, 417 E Liberty Street, Ann Arbor on April 4, Noon to 3 p.m.
- University of Michigan Angell Hall Courtyard Computing Site (a.k.a. The Fishbowl), 435 State Street, Ann Arbor on April 4, 1 to 6 p.m. and April 5, 4 to 10:30 p.m.
- Jolly Pumpkin Café & Brewery, 311 S Main Street, Ann Arbor on April 5, 12:30 to 4:30 p.m.
- Blank Slate Creamery, 300 W Liberty Street, Ann Arbor on April 5, 2:30 to 6 p.m.
- Asian Legend, 516 E William Street, Ann Arbor on April 5, 8:30 to 10:30 p.m.
- Walgreens Pharmacy, 317 S State Street, Ann Arbor from April 5 at 9:30 p.m. to April 6 at Midnight.
- CVS Pharmacy, 209 S State Street, Ann Arbor from April 5 at 9:30 p.m. to April 6 at Midnight.
- CVS Pharmacy, 1700 S Industrial Highway, Ann Arbor on April 6, 10 a.m. to Noon.
- Woodbury Gardens Apartments leasing office and clubhouse, 1245 Astor Avenue, Ann Arbor on April 6, 11 a.m. to 1:30 p.m.
- Michigan Flyer-AirRide bus on April 6, 3:15 to 6 p.m.
- DTW Airport McNamara Terminal on April 6, 3:55 to 7:30 p.m.. Because measles can be spread through the air by an infected person, the public is being alerted to the potential exposures. A person with measles is contagious for four days before and four days after the rash appears. A person can be infected with measles just by being in the same room as an infected person, even up to two hours after the infected person has left.
Fox 2 is tracking the virus through Michigan with an interactive map. You can click through it below: