Can influvac tetra and pcv given together
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Influvac Tetra and PCV co-administration together same visit
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influenza vaccine pneumococcal conjugate vaccine concomitant administration
Here is a clear, evidence-based answer:
Can Influvac Tetra and PCV Be Given Together?
The short answer: generally yes for most PCVs - but with an important caveat specific to Influvac Tetra's product insert.
General Immunization Principle
Inactivated influenza vaccines (which Influvac Tetra is - a quadrivalent split-virion, inactivated subunit flu vaccine) can be co-administered with other inactivated vaccines including pneumococcal conjugate vaccines (PCV10, PCV13, PCV15, PCV20, etc.) at the same visit. This is supported by:
- CDC guidance: Inactivated or recombinant influenza vaccines can be given at the same time as other vaccines when indicated. Each injection should be at a separate site (ideally 1 inch or more apart).
- NCIRS (Australia) adult co-administration guide (March 2025): Influenza vaccines, including adjuvanted and non-adjuvanted forms, can be given at the same time as or at any interval before or after other vaccines.
- Clinical trial evidence: Phase 3 RCTs (PMID 34726574, PMID 40714528) have specifically evaluated PCV (V114/15-valent and V116/21-valent) co-administered with influenza vaccine in adults ≥50 years, showing no clinically meaningful interference in immunogenicity and acceptable safety profiles.
Important Caveat - Influvac Tetra Product Insert
The WHO-prequalified Influvac Tetra product insert (Abbott/Mylan) states:
"There is no information on administration/possible immune interference of Influvac Tetra with (childhood) vaccines. Therefore, Influvac Tetra should not be given at the same time with other (childhood) vaccines."
This caution is specifically about childhood vaccines (due to lack of co-administration data in that setting), not adult vaccines like PCV23 or PCV13/15/20 used in adults and older children.
Practical Summary
| Patient Group | Recommendation |
|---|---|
| Adults / elderly | Can co-administer Influvac Tetra + PCV (e.g., PCV13, PCV15, PCV20) - supported by RCT data and guideline consensus |
| Young children (EPI schedule) | Exercise caution per Influvac Tetra's own PI; lack of co-administration data; consult local immunization authority |
| Immunocompromised | Immune responses may be diminished; still can co-administer, but response may be suboptimal |
When giving both at the same visit:
- Use separate injection sites (different limbs preferred)
- Keep at least 2.5 cm between sites if the same muscle must be used
- Document both vaccines with batch numbers (traceability requirement for biological medicines)
Bottom line: For adults, co-administering Influvac Tetra and PCV is well-supported and practiced routinely. For young children, the Influvac Tetra PI advises against co-administration with childhood vaccines due to insufficient data - check your local immunization schedule guidance (e.g., national EPI guidelines) for the specific age group.
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