Objective. This article presents a brief history of the Cuban mass mig
ration in spring 1980. It describes the moral epidemic directed agains
t the Cubans and the specific programs and procedures that facilitated
their institutionalization in the United States. It documents the imp
act of these programs and policies on the risk of institutionalization
of the immigrants. Methods. The research uses logistic regression to
analyze information on 50,958 people of Cuban origin in the Public Use
Microdata Sample (PUMS) of the 1990 U.S. Census. Results. Marielitos
have higher rates of institutionalization than other Cubans. This effe
ct persists even after statistically controlling for other important d
eterminants of institutionalization. Moreover, identification with the
Mariel boatlift has important effects on the other predictors of inst
itutionalization included in the analysis. The nationwide moral epidem
ic created important liabilities for all Mariel immigrants irrespectiv
e of social and demographic statuses that otherwise would have protect
ed them against detection and institutionalization.