%0 Journal Article %T Pneumococcal Vaccines: Challenges and Prospects %J Vaccines | An Open Access Journal from MDPI %D 2019 %R https://doi.org/10.3390/vaccines7010025 %X Note: In lieu of an abstract, this is an excerpt from the first page. Infections with the bacterium Streptococcus pneumoniae are one of the most common causes of morbidity and mortality in children less than five years of age worldwide, mostly in low- and middle-income countries (LMICs) [...] View Full-Tex %U https://www.mdpi.com/2076-393X/7/1/25