HealthCoronavirus Actions Facebook Tweet Email WFTS: When Will We Reach Herd Immunity? One expert told our sister station it would require at least 500 million doses of vaccines. Prev Next Posted Most Recent US strikes targets in Iran for third straight day as blockade resumes Scripps News Group South Carolina governor appoints Lindsey Graham's sister to serve out his term Scripps News Group Why the fastest-growing Ebola outbreak in history is becoming more challenging AP via Scripps News Group Health Melanoma cases rise as high UV exposure fuels skin cancer concerns Scripps News Group US aid worker in Congo infected with Ebola during record outbreak AP via Scripps News Group Doctor warns foodborne illness outbreak is ‘not the typical stomach bug’ Scripps News Group Join the 'Morning Rush' team every weekday at 7 a.m. ET About Scripps News Download the Scripps News app.