The MFS Emerging Markets Debt Fund Class A (MEDAX) is a mutual fund that focuses on investing in debt securities issued by emerging market countries. This fund aims to provide investors with exposure to the potential growth and diversification opportunities of emerging markets while managing risk through a diversified portfolio. With a focus on debt securities, this fund may offer a potentially higher yield compared to traditional fixed-income investments. The Class A shares of this fund may also have a front-end sales charge, making it more suitable for long-term investors. Overall, MEDAX offers a way for investors to access the potential opportunities of emerging markets while managing risk through a professionally managed mutual fund.