<http://schema.org/description>
"Researchers supported by the National Institutes of Health will test to see if a higher pneumococcal vaccine dose will create a stronger immune response in older adults who previously received an earlier generation vaccine."^^<http://www.w3.org/2001/XMLSchema#string>
<http://vaccinenewsdaily.com/stories/510533461-nih-funded-study-will-test-pneumococcal-vaccine-with-adults-55-and-older>