So is 67% of Americans enough?

“No. No, no, no, no,” said William Hanage, a Harvard University expert on disease dynamics. He added: “You’re going to need to get quite large proportions of the population vaccinated before you see a real effect.”…

Of those who probably will not get the vaccine but have not ruled it out completely, 63% said they are waiting to see if it is safe, and 60% said they are concerned about possible side effects.

“I don’t trust pharmaceuticals. I really don’t. And it doesn’t sound like it’s going to be safe,” said Debra Nanez, a 67-year-old retired nurse from Tucson, Arizona.