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MFS(R) VARIABLE INSURANCE TRUST
VALUE SERIES
Supplement to the Current Prospectus
The description of portfolio managers under the "Management of the Series -
Investment Adviser" section is hereby restated as follows:
Maura A. Shaughnessy, a Senior Vice President of the Adviser, is the
portfolio manager of the Series. Ms. Shaughnessy has been employed as
a portfolio manager by the Adviser since 1991.
The date of this Supplement is March 5, 1999.
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MFS(R) VARIABLE INSURANCE TRUST
TOTAL RETURN SERIES
Supplement to the Current Prospectus
The description of portfolio managers under the "Management of the Series -
Investment Adviser" section is hereby restated as follows:
Total Return Series - David M. Calabro, a Senior Vice President of
MFS, has been employed by the Adviser as a portfolio manager since
1992. Mr. Calabro is the head of this portfolio management team and a
manager of the common stock portion of the Series' portfolio. Geoffrey
L. Kurinsky, a Senior Vice President of MFS, has been employed by the
Adviser as a portfolio manager since 1987. Mr. Kurinsky is the manager
of the Series' fixed income securities. Constantinos G. Mokas a Vice
President of MFS, has been a portfolio manager of the Series since
April 1, 1998, and has been employed by the Adviser as a portfolio
manager since 1990. Mr. Mokas is the manager of the Series'
convertible securities. Lisa B. Nurme, a Senior Vice President of MFS,
has been employed by the Adviser as a portfolio manager since 1987.
Ms. Nurme is a manager of the common stock portion of the Series'
portfolio. Each individual became a portfolio manager of the Series on
July 19, 1995. Kenneth J. Enright, a Senior Vice President of the
Adviser, has been employed by the Adviser as a portfolio manager since
1986. Mr. Enright became a manager of the common stock portion of the
Series' portfolio on January 15, 1999.
The date of this Supplement is March 5, 1999.
