Yes, Prevnar 20 and flu vaccine can be given together
Prevnar 20 (PCV20) can be safely administered concomitantly with seasonal influenza vaccine in adults, and this approach is supported by both FDA labeling and current ACIP guidelines. 1, 2, 3
Evidence for Concomitant Administration
Adults ≥65 Years
The most direct evidence comes from a dedicated study evaluating PCV20 coadministration with adjuvanted influenza vaccine (Fluad Quadrivalent) in adults ≥65 years. This study demonstrated that while pneumococcal antibody levels were slightly lower with concomitant administration compared to sequential administration, the difference was not statistically significant. 2 The safety profile showed more frequent local pain and systemic events with coadministration, but adverse events through 1 month were similar across groups (5.3% for both vaccines together vs 4.3% for PCV20 alone). 2
Broader Adult Population
The FDA label for Prevnar 20 explicitly states that PCV20 can be coadministered with seasonal inactivated quadrivalent influenza vaccine, with demonstrated immunogenicity and safety. 3 The 2024-25 ACIP influenza recommendations confirm that inactivated influenza vaccines may be administered concomitantly or sequentially with other inactivated vaccines like PCV20, with injectable vaccines given at separate anatomical sites. 1
Pediatric Population
For infants and children, recent phase 3 trials demonstrated that PCV20 can be safely administered with routine pediatric vaccines including influenza vaccine. 4, 5 The safety profile was similar to PCV13, with most reactions mild to moderate.
Practical Considerations
- Administer at separate anatomic sites (different arms if possible, especially since both vaccines can cause local injection site reactions) 1
- Expect potentially higher reactogenicity with concomitant administration compared to sequential dosing, though reactions are generally mild to moderate 2
- Do not delay vaccination if only one vaccine is immediately available - both can be given at subsequent visits if needed 1
Historical Context
The principle of concomitant pneumococcal and influenza vaccination is well-established. Earlier ACIP guidelines from 1994 and 2002 strongly recommended simultaneous administration of pneumococcal polysaccharide vaccine (PPSV23) and inactivated influenza vaccine, noting satisfactory antibody responses without increased adverse reactions. 6, 7 This precedent extends to the newer conjugate vaccines like PCV20.
Special Populations
For adults with prior pneumococcal vaccination history, PCV20 can still be coadministered with influenza vaccine regardless of previous PPSV23 or PCV13 status. 3 The 2024 expanded recommendations now include all adults ≥50 years for PCV vaccination, making concomitant administration with annual influenza vaccine increasingly relevant. 8