Nurse anesthesiologist?
Have you heard of "post hoc ergo propter hoc"? There is no immune deficiency after any vaccination; if anything, there is increased inflammation in the body, hence an overactive immune system. That's why we distance vaccinations in time, and why we tend to avoid giving them to people with serious allergic histories.
The number of shingles cases among young people is on the rise:
Are you at risk for shingles? WebMD explains when and why you should get the shingles vaccine.
www.webmd.com