Israeli study uncovers where COVID-19 variants come from
Patients with weakened immune systems develop several highly mutated COVID-19 variants, a new Israeli study has discovered, paving for a better understanding of where coronavirus variants come from.
COVID-19 tests are pictured at the NG Biotech factory in Guipry-Messac as France experiences a surge in coronavirus disease (COVID-19) cases due to the Omicron variant, France, January 12, 2022.(photo credit: REUTERS/STEPHANE MAHE)ByJUDY SIEGEL-ITZKOVICHUpdated: