Why some babies in Tanzania get vaccines late

Original Title

Determinants of delayed or incomplete diphtheria-tetanus-pertussis vaccination in parallel urban and rural birth cohorts of 30,956 infants in Tanzania

Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms

Summary

This study looked at why some babies in Tanzania don’t get their vaccines on time. It found that in rural areas, babies whose parents didn’t go to school, were born at home, or came from poor families were more likely to miss vaccines. In cities, babies whose moms waited until late in pregnancy to go to the doctor or were from poor families were more likely to miss vaccines. In cities, mom’s education didn’t matter much.

Sign up to see full results

Get access to research results, context, and detailed analysis.

Surprising Findings

Low birth weight infants in rural Tanzania had a 31% lower risk of delayed DTP1 vaccination.

In nearly all other LMICs, low birth weight babies are more likely to miss vaccines due to illness, hospitalization, or being overlooked. Here, they’re getting vaccinated faster — possibly because they’re flagged at birth or receive more follow-up.

Practical Takeaways

Design vaccination campaigns that engage fathers in rural areas — through community meetings, SMS messages to dads, or involving male elders in health education.

high confidence

Unlock Full Study Analysis

Sign up free to access quality scores, evidence strength analysis, and detailed methodology breakdowns.