Vaccination Schedule for Sickle Cell Disease Patients After Autosplenectomy

Core Vaccination Algorithm

The Centers for Disease Control and Prevention recommends administering PCV13 as the initial pneumococcal vaccine for all sickle cell patients aged ≥2 years with autosplenectomy, regardless of prior vaccination status 1, 2, 3
Wait at least 8 weeks, then administer PPSV23 to provide broader serotype coverage against encapsulated bacteria, as recommended by the Centers for Disease Control and Prevention 1, 2, 4
Give a second dose of PPSV23 exactly 5 years after the first dose to maintain protective antibody levels, according to the Centers for Disease Control and Prevention guidelines 1, 2, 4
Revaccinate with PPSV23 every 5-6 years thereafter for lifelong protection, as recommended by the Annals of Oncology 5, 6
Administer quadrivalent meningococcal conjugate vaccine (MenACWY) for patients aged ≥2 months with sickle cell disease and autosplenectomy, as recommended by the Centers for Disease Control and Prevention 1, 2, 3
Consider meningococcal serogroup B vaccine (MenB) as an additional protection, particularly given that serogroup B now accounts for 40% of meningococcal cases, according to the Annals of Oncology 5, 6
Administer one dose of Hib vaccine to all unvaccinated persons aged ≥5 years with sickle cell disease and autosplenectomy, as recommended by the Centers for Disease Control and Prevention 1, 2, 3
Administer inactivated influenza vaccine (IIV) annually to all sickle cell patients with autosplenectomy aged ≥6 months, according to the Annals of Oncology 5, 7

Ideally wait at least 2 weeks after confirming functional asplenia before administering vaccines to ensure optimal antibody response, as recommended by the Centers for Disease Control and Prevention 1, 4, 6
If vaccination timing is uncertain, vaccinate as soon as autosplenectomy is documented rather than delaying, as the infection risk is immediate and lifelong, according to Praxis Medical Insights 6, 8

Do not skip the PCV13-first sequence: Giving PPSV23 before PCV13 produces inferior immune responses and may cause hyporesponsiveness to subsequent PCV13, as warned by the Centers for Disease Control and Prevention 1, 4
Do not co-administer MCV4-D with PCV in children <2 years: This significantly reduces pneumococcal antibody response, according to the Centers for Disease Control and Prevention 1, 4
Do not use only PPSV23: The conjugate vaccine (PCV13) is essential for optimal T-cell dependent immunity, as recommended by the Centers for Disease Control and Prevention 1, 4
Do not forget the 5-year PPSV23 booster: Antibody levels wane significantly, and the second dose is strongly recommended, according to the Centers for Disease Control and Prevention 1, 2, 4

Strongly consider lifelong prophylactic phenoxymethylpenicillin (oral penicillin V), particularly in the first 2 years post-autosplenectomy when infection risk is highest, as recommended by Praxis Medical Insights 6, 8
Provide emergency standby amoxicillin for patients to keep at home and start immediately with fever >101°F (38°C), malaise, or chills, according to Praxis Medical Insights 6, 8
Counsel patients that infection risk is lifelong, with overwhelming post-splenectomy infections reported more than 20 years after splenic loss, as warned by Praxis Medical Insights 6, 8