Studies provide insight into COVID-19 spread, differences among variants – UPI.com

People infected with the virus that causes COVID-19 remain contagious for up to nine days after initially testing positive, a study published Thursday found. Spread also appears to differ significantly between variants.
— Read on www.upi.com/Health_News/2022/04/28/covid19-spread-viral-shedding-variants-studies/8071651151665/