Study: About one in seven healthcare workers hesitant to be vaccinated Ryan Voyles 3 years ago Roughly one in seven healthcare workers are hesitant to receive a COVID-19 vaccine, according to a new study by researchers at the University of Illinois Chicago.To access this content, you must purchase 1 Year Health News Illinois Subscription or 1 Year Group Subscription - Up to 5 Users, or log in if you are a member.