Embodiments herein relate to compositions of and methods for live attenuated alphaviruses. In certain embodiments, a live, attenuated virus composition includes, but is not limited to, one or more live, attenuated alphaviruses and compositions to reduce inactivation and/or degradation of the live, attenuated alphavirus. In other embodiments, the live, attenuated virus composition may be a vaccine composition. In yet other compositions, a live, attenuated alphavirus composition may include HEPES buffer. In other embodiments, the HEPES buffer may further include a carbohydrate and gelatin and/or a salt.
