<qa>  What is the difference in long term protection of groups where the primary schedule was different?This study will look at short term protection after the differing provincial series of vaccinations has been given and compare those who do not get primary vaccination under 1 year of age NS with two schedules of primary immunization BC at 2 and 4 mths and Alberta at 2 months. A blood sample will be collected at 12-13 mths for this comparison. A booster vaccination of the current provincial Men C vaccine will be provided at 12 months. Another blood sample will be collected 1 mth later to look at the difference in responses between the groups different provincial primary vaccination schedule. 2 years and 4 years later at age 3 and age 5, another blood sample will be collected to look at the difference in long term protection of the groups where the primary schedule was different. 