Colostrum bests flu vaccines by a factor of three

"Colostrum, both in healthy subjects and high-risk cardiovascular patients, is at least 3 times more effective than vaccination to prevent flu and is very cost-effective."

Clin Appl Thromb Hemost.  2007 Apr;13(2):130-6.  

(This refers to the medical journal entitled, "Clinical & Applied Thrombosis / Hemostasis.")