TheStreet.com TV Recap: Vaccines Give Merck Booster Shot

"It's a great trend and I would buy Merck," Cramer said.

At the same time, rather than vaccines, rapid diagnostics are more important to nip the illness in the bud, Cramer said. This is why Inverness Medical Innovations (IMA Quote), a stock that he owns for his charitable trust, Action Alerts PLUS, and has been recommending, is up another couple of points today after being up yesterday, he said.