Did you know that the Philippines was part of the world's first ever mass vaccination campaign? Let's go back to the 1800s to learn how the Balmis Expedition brought the smallpox vaccine here before refrigeration and airplanes! From the "What's AP? Araling Panlipunan" podcast, powered by PLDT Home.
See omnystudio.com/listener for privacy information.
Hosted on Acast. See acast.com/privacy for more information.
