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MFS(R)/SUN LIFE SERIES TRUST
WORLD ASSET ALLOCATION SERIES
Supplement to the Current Prospectus
Effective February 15, 1999, the description of portfolio managers under the
"Management of the Series - Investment Adviser" section is hereby restated as
follows:
World Asset Allocation - Joseph C. Flaherty, Jr., a Vice President of MFS,
determines the allocation of assets among the
following five asset classes: (i) U.S. equity
securities; (ii) foreign equity securities;
(iii) U.S. investment grade fixed income
securities; (iv) U.S. high yield fixed income
securities; and (v) foreign fixed income
securities. Mr. Flaherty has been employed as
a portfolio manager by the adviser since 1993.
A team of portfolio managers selects
specific portfolio securities within each of
these asset classes.
The date of this Supplement is February 26, 1999.
