A 12-month-old who underwent cardiopulmonary bypass with RBC and plasma infusions; which vaccine may be administered at this visit?

A 12-month-old who underwent cardiopulmonary bypass with RBC and plasma infusions; which vaccine may be administered at this visit?

• A. MMR
• B. OPV
• C. PCV-13
• D. Varivax

Answer: (C)

When a child has recently undergone major surgery and received blood products, the timing of vaccines depends on whether the vaccine is live or inactivated. Live vaccines rely on the body’s ability to mount an active immune response, and passive antibodies from transfused blood can interfere with that response or increase risk if given too soon after transfusion. Inactivated vaccines do not contain live organisms and are safe to give in the immediate postoperative period and after transfusions. Pneumococcal conjugate vaccine is an inactivated vaccine that provides protection against pneumococcal disease and is routinely given at 12 months as part of catch-up immunization. It can be administered in this postoperative, transfused period, making it appropriate at this visit. Live vaccines such as MMR and Varicella are typically deferred after transfusions or immunoglobulin exposure to avoid interference with the vaccine response and potential safety concerns. OPV is a live vaccine as well and is not the usual choice in many settings. So, the vaccine that may be administered now is the pneumococcal conjugate vaccine, PCV-13, because it is inactivated and safe to give in the context of recent transfusion and surgery.

When a child has recently undergone major surgery and received blood products, the timing of vaccines depends on whether the vaccine is live or inactivated. Live vaccines rely on the body’s ability to mount an active immune response, and passive antibodies from transfused blood can interfere with that response or increase risk if given too soon after transfusion. Inactivated vaccines do not contain live organisms and are safe to give in the immediate postoperative period and after transfusions.

Pneumococcal conjugate vaccine is an inactivated vaccine that provides protection against pneumococcal disease and is routinely given at 12 months as part of catch-up immunization. It can be administered in this postoperative, transfused period, making it appropriate at this visit.

Live vaccines such as MMR and Varicella are typically deferred after transfusions or immunoglobulin exposure to avoid interference with the vaccine response and potential safety concerns. OPV is a live vaccine as well and is not the usual choice in many settings.

So, the vaccine that may be administered now is the pneumococcal conjugate vaccine, PCV-13, because it is inactivated and safe to give in the context of recent transfusion and surgery.