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MFS(R) VARIABLE INSURANCE TRUST
MFS(R) Emerging Growth Series
Supplement to the Current Prospectus
The description of portfolio managers under the "Management of the Fund -
Investment Adviser" section is hereby restated as follows:
Emerging Growth Series - John W. Ballen, President of MFS, has been
employed by the Adviser as a portfolio manager since 1984. Toni Y.
Shimura, a Vice President of MFS, has been employed by the Adviser as a
portfolio manager since 1987. Ms. Shimura became a portfolio manager of
the Series on November 30, 1995. Stephen Pesek, a Vice President of
MFS, has been employed by the Adviser as a portfolio manager since 1994
and has been a portfolio manager of the Series since January 15, 1999.
From 1987 to 1994, Mr. Pesek worked at Fidelity Investments as an
analyst.
The date of this Supplement is January 15, 1999.
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MFS(R) VARIABLE INSURANCE TRUST
MFS(R) Total Return Series
Supplement to the Current Prospectus
The description of portfolio managers under the "Management of the Fund -
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. Mr. Calabro has been
a portfolio manager of the Series since July 19, 1995. Geoffrey L.
Kurinsky, a Senior Vice President of MFS, has been employed by the
Adviser as a portfolio manager since 1987 and has been a portfolio
manager of the Series since July 19, 1995. 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 and has
been a portfolio manager of the Series since July 19, 1995. Maura A.
Shaughnessy, a Senior Vice President of MFS, has been employed by the
Adviser as a portfolio manager since 1991 and has been a portfolio
manager of the Series since July 19, 1995. Ms. Shaughnessy is a manager
of the common stock portion of the Series' portfolio. Kenneth J.
Enright, a Vice President of MFS, has been employed by the Adviser as a
portfolio manager since 1986 and has been a portfolio manager of the
Series since January 15, 1999. Mr. Enright is a manager of the common
stock portion of the Series' portfolio.
The date of this Supplement is January 15, 1999.