Elizabeth Maulick thought her 19-year-old son, Gregory, was up-to-date with all his shots -- including meningitis -- before he started at Santa Clara University in September. But like thousands of other SCU parents, Maulick was furious to discover this week that the regimen didn't include the shot for the strain of the potentially deadly infection that has so far infected three students at the university and forced thousands more to wait hours for emergency vaccines.