I kind of wonder about this line of thinking. Let's apply it to something else. Right now about 17 million people die from heart disease around the world each year. Let's say a new thing pops up, let's call it disease X, that "is about as deadly as heart disease", meaning it kills an additional 17 million people. Should we be concerned about disease X and try to stop something that doubles what is already a really bad thing? Or because something equally bad already exists then we shouldn't be concerned about something of equal magnitude that adds to the existing death toll by that magnitude?Why are we spending $8B on something that is about as deadly and contagious as the flu? GILD or JNJ will have a vaccine within a year anyway without the $8B in funding needed.
Obviously we'd be concerned, an additional 17 million people are going to die! Why is that statement on heart disease deaths being replicated by something else absurd, but the whole "It's no more deadly then the flu" comparison make sense? At what number of doubling of deaths do we say it's a problem, and at what level do we say "well X people die from (pick a disease) therefore why are we concerned about an additional X people dying?