Two types of pneumococcal vaccine are available. The 23-valent pneumococcal polysaccharide vaccine (PPV23) is used in adults and children >2 years of age. By contrast, pneumococcal conjugate ...

Although pneumococcal polysaccharide vaccine is a standard ... 22 randomized trials with 100,000 subjects. The current 23-valent vaccine was used in eight trials, and previous lower-valent ...

Pneumococcal vaccine polyvalent ... Not for routine revaccination after previous vaccination with a 23-valent vaccine in immunocompetent patients. Severe cardiac or pulmonary disease where ...

The rivalry between Pfizer and MSD in pneumococcal vaccines ... an older shot called Pneumovax 23, which covers 23 serotypes, but is based on an older polysaccharide technology that does not ...