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.
Pneumococcal polysaccharide vaccine (PPSV)âthe latest version is known as Pneumovax 23 (PPV-23)âis the first pneumococcal vaccine, the first vaccine derived from a capsular polysaccharide, and an important landmark in medical history.hile this covers only thirteen strains out of more than ninety strains, these thirteen strains caused 80 percent to 90 percent of cases of severe pneumococcal disease in the US before introduction of the vaccine, and it is considered to be nearly 100 percent effective against these strains.