Affliction of polio doesn't discourage patients of Haynes Memorial Hospital, Allston, from engaging in fun and gaiety. Tomorrow night an all-patient variety show ill be presented in hospital cafeteria. Proceed will be donated to the March of Dimes. Examining Blanch Carey are "Drs." Bob Burke and Bob Baker, both of Quincy. Show is called "Louis-Ville Laffs" in honor of Dr. Louis Weinstein head hospital physician.