Novavax and Dynavax lead the way down with 7% losses as stocks slip 2% overall

Covid stocks slid back to start the week with a loss of just under 2% on average.

Twenty-one lost ground with only five gaining. 

Novavax and Dynavax lead the way down with 7% losses. Moderna lost 6% while CureVac, Vir and Adaptive all slipped 5%. 

No stock picked up over 5%.