Lithonia High School Named Georgia AP Honor School. AP STEM Schools are schools with students testing in at least two AP math courses and two AP science courses (AP Calculus AB, AB Calculus BC, AP Statistics, AP Biology, AP Chemistry, AP Environmental Science, AP Physics B, AP Physics C, AP Computer Science)
The first pneumococcal vaccine was developed in the 1980s. They are on the World Health Organization's List of Essential Medicines, the most important medication needed in a basic health system. The wholesale cost in the developing world is about US$17 per dose as of 2014.
The First Vaccine Ever Invented: Smallpox Vaccine. 1  Many people think of vaccination as a modern invention, but the actual concept of vaccination originates in 1798 when the smallpox vaccine was developed. The virus which combats smallpox was discovered a few years later, is still the exact virus we use in our current vaccine.