From: Seroprevalence of Transplacentally acquired Measles antibodies in unvaccinated infants at nine months of age and its relation to the feeding practices
Age groups
Unprotected IgG Levels
Protective IgG levels
6–9 months
119
16
1–6 months
174
75
Odds ratio: 3.187 (CI 1.7–5.7)
P value: < 0.000063