RT Journal
A1 Chapman GB
T1 VAccination mandates vs opt-out programs and rates of influenza immunization—reply
JF JAMA
JO JAMA
YR 2010
FD October 27
VO 304
IS 16
SP 1786
OP 1786
DO 10.1001/jama.2010.1479
UL http://dx.doi.org/10.1001/jama.2010.1479
AB 
The default effect has theoretical implications that go beyond influenza vaccination, as it could potentially be used to encourage a variety of healthy behaviors. Rakita et al are correct that mandating vaccination does indeed raise vaccination rates above what can be achieved with an opt-out intervention. Mandates, however, require enforcement and consequences for noncompliance. It seems likely that most US citizens want to preserve a voluntary basis for most healthy behaviors.