Suburban Cook County confirmed its first measles case, bringing the total number of cases in the Chicago area to 53. City officials have vaccinated over 5,000 migrants since the first cases were reported at a migrant shelter in Pilsen. Reset checks in with RUSH University Medical Group’s Dr. David Ngyuen on best practices to protect yourself against these viruses. For a full archive of Reset interviews, head over to wbez.org/reset.