J&J vaccine is back. 
Benefits out weigh the risks. Single dose vaccine. 
Highly effective – 85% effective in preventing symptoms and 100% effective and preventing death.
Risk of clotting 7 in 1 million for 18-49 y/o.
Risk of clotting 0.9 in 1 million for > 50 y/o. 

https://www.cidrap.umn.edu/news-perspective/2021/04/acip-opts-lift-pause-johnson-johnson-vaccine