Table 1.

Conjugated pneumococcal vaccine studies in organ transplant recipients

Transplant organ	Vaccine	Efficacy	Reference
Kidney	PCV7 vs. PPSV23	Conjugate vaccine does not improve the durability of response	[21]
Liver	PCV7/PPSV23 vs. PPSV23	Similar (85.7% vs. 91.2%)	[26]
Heart, lung	PCV7/PPSV23	No benefit from the additional PPSV23 dose	[29]
Kidney	PCV7/PPSV23 vs. PPSV23/PPSV23	Similar (87.5% vs. 87.1%)	[27]

PCV7, pneumococcal conjugate 7-valent vaccine; PPSV23, pneumococcal polysaccharide 23-valent vaccine.