There Certain Ly News Today

There certain ly is a lot to discuss. joining me right now, dr. ebony hilton, an msnbc medical contributor and dr. peter hotez, codirector for the center for vaccine development and dean of the national school of tropical medicine at baylor college of medicine. hello to you both. dr. hotez, were learning a lot each day about this new variant. we have some data on its transmissibility and severity. knowing what we know right now, what gives you caution, and what gives you some hope? >> well, im l...