Figure 1From: Sero-positivity rate of rubella and associated factors among pregnant women attending antenatal care in Mwanza, Tanzania Age specific Sero-prevalence of rubella infections . There is an increase of sero-prevalence of rubella infection with an increase in age. The sero-prevalence increases by 1.6% with one year increase in age. The risk (odds ratios) of acquiring rubella infection increases by 12% with one year increase in age.Back to article page