![Frontiers | Streptococcus pneumoniae Attenuated Strain SPY1 with an Artificial Mineral Shell Induces Humoral and Th17 Cellular Immunity and Protects Mice against Pneumococcal Infection Frontiers | Streptococcus pneumoniae Attenuated Strain SPY1 with an Artificial Mineral Shell Induces Humoral and Th17 Cellular Immunity and Protects Mice against Pneumococcal Infection](https://www.frontiersin.org/files/Articles/318809/fimmu-08-01983-HTML/image_m/fimmu-08-01983-g001.jpg)
Frontiers | Streptococcus pneumoniae Attenuated Strain SPY1 with an Artificial Mineral Shell Induces Humoral and Th17 Cellular Immunity and Protects Mice against Pneumococcal Infection
![A virulent strain of Streptococcus pneumoniae (pneumococcus) growing on blood agar. Colonies with alpha hemolysis. Pure culture streaked on blood agar plate. S.pneumoniae (pneumococcus) appearance. A virulent strain of Streptococcus pneumoniae (pneumococcus) growing on blood agar. Colonies with alpha hemolysis. Pure culture streaked on blood agar plate. S.pneumoniae (pneumococcus) appearance.](https://www.microbiologyinpictures.com/bacteria%20photos/streptococcus%20pneumoniae%20photos/streptococcus%20pneumoniae%2002.jpg)
A virulent strain of Streptococcus pneumoniae (pneumococcus) growing on blood agar. Colonies with alpha hemolysis. Pure culture streaked on blood agar plate. S.pneumoniae (pneumococcus) appearance.
![Streptococcus pneumoniae (pneumococcus) growing on blood agar plate. Alpha hemolysis. Pure Streptococcus pneumoniae culture streaked on blood agar plate. S.pneumoniae (pneumococcus) cultivation in a lab. Streptococcus pneumoniae (pneumococcus) growing on blood agar plate. Alpha hemolysis. Pure Streptococcus pneumoniae culture streaked on blood agar plate. S.pneumoniae (pneumococcus) cultivation in a lab.](https://www.microbiologyinpictures.com/bacteria%20photos/streptococcus%20pneumoniae%20photos/streptococcus%20pneumoniae%2001.jpg)
Streptococcus pneumoniae (pneumococcus) growing on blood agar plate. Alpha hemolysis. Pure Streptococcus pneumoniae culture streaked on blood agar plate. S.pneumoniae (pneumococcus) cultivation in a lab.
![Successful culture of Streptococcus pneumoniae from sputum despite dual anti-pneumococcal therapy using a novel biofilm disruption technique Successful culture of Streptococcus pneumoniae from sputum despite dual anti-pneumococcal therapy using a novel biofilm disruption technique](https://www.oatext.com/img/CMID-5-180-g001.gif)