The efficacy of a 2-month treatment with oral colostrum in the prevention of flu episodes compared with anti-influenza vaccination was evaluated. Groups included healthy subjects without prophylaxis and those receiving both vaccination and colostrum. After 3 months of follow-up, the number of days with flu was 3 times higher in the non-colostrum subjects. The colostrum group had 13episodes versus 14 in the colostrum +vaccination group, 41in the group without prophylaxis, and 57 in nontreated subjects. Part 2 of the study had a similar protocol with 65very high-risk cardiovascular subjects, all of whom had prophylaxis. The incidence of complications and hospital...