There's a new trend among new parents to require all relatives who will be coming near their newborn to get vaccinated. It's called infant cocooning. Parents want to make sure everyone is up to date with their pertussis, diptheria and influenza vaccines. And this move is supported by the American Academy of Pediatrics. One of the greatest concerns is whooping cough according to experts. I've heard of washing hands before holding the baby, but now vaccines? Is this too much?