How effective are vaccines against omicron? An epidemiologist answers 6 questions

The pandemic has brought many tricky terms and ideas from epidemiology into everyone’s lives. Two particularly complicated concepts are vaccine efficacy and effectiveness. These are not the same thing. And as time goes on and new variants like omicron emerge, they are changing, too. Melissa Hawkins is an epidemiologist and public health researcher at American University. She explains … Continue reading How effective are vaccines against omicron? An epidemiologist answers 6 questions