One way of getting healthy adults to take flu shots is to convince them that this will protect their young babies. I found references to the 'coccooning' effect of family vaccinations, but when I looked into the study this was based on, I found it had nothing to do with rates of illness, hospitalizations and deaths in the babies in these families, but only with how effective this was as a strategy to get parents to take flu shots. vaccinating parents may protect newborns www.medindia.net/news/Study-Says-Vaccinating-Family-may-Help-Protect-Newborns-Against-Flu-43500-1.htm another article on this study: yourtotalhealth.ivillage.com/family-flu-shots-protect-babies-before-leaving-hospital.html From this hospital www.dukechildrens.org/services/primary_care Actual study this article refers to only studied whether vaccinating parents before leaving the hospital increased immunization coverage, not whether it decreased complications or deaths from flu in newborns clinicaltrials.gov/ct2/show/NCT00570037