Global News - Concerned about the Omicron variant and your holiday plans? Try the COVID-19 visit risk calculator to see how safe you'll be

"We're worried that unless we give staff that extra layer of protection [booster shots], will we see a huge growth of outbreaks in these [long-term care] homes again, where sometimes this population doesn't respond as well to the vaccine as other populations," says Dr. Samir Sinha, NIA Director of Health Policy Research.