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MFS(R) VARIABLE INSURANCE TRUST
Supplement to the Current Statement of Additional Information
The Trust's Statement of Additional Information dated May 1, 1998 is
supplemented by amending the third paragraph on page 20 to read as follows:
(4) except for the New Discovery Series, sell any security
which the Series does not own unless by virtue of its ownership of
other securities the Series has at the time of sale a right to obtain
securities without payment of further consideration equivalent in kind
and amount to the securities sold and provided that if such right is
conditional, the sale is made upon the same conditions;
The date of this Supplement is February 3, 1999.
