Makery obviously hadn't read Merck's (rather positive) PR properly when he said:
"A 50 percent reduction in the death rate, an oral pill with a simple 5-day course."
In reality in this study, the group receiving the Merck drug had no deaths - an infinite reduction.
What he meant to say, I expect, was:
"molnupiravir reduced the risk of hospitalization or death by approximately 50%"
I don't expect much from Fox "News" or its guests, but they really should do better than this.