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#TBT In 1980, just 3 in 10 kids worldwide 🌎 received their first dose of diphtheria-tetanus-pertussis #vaccines 💉… twitter.com/i/web/status/1…
In 1980, just 3 in 10 kids worldwide 🌎 received their first dose of diphtheria-tetanus-pertussis #vaccines 💉… twitter.com/i/web/status/1…