Asplenia: which vaccines are recommended for patients with an absent or nonfunctional spleen?

Asplenia: which vaccines are recommended for patients with an absent or nonfunctional spleen?

• A. Pneumococcal, Meningococcal, Haemophilus influenzae type B vaccines
• B. HPV, Influenza, Zoster vaccines
• C. Both A and B
• D. No vaccines are recommended

Answer: (C)

The key idea is that when the spleen is absent or nonfunctional, the body is less able to clear encapsulated bacteria, so protecting against these organisms is essential. Vaccines targeting Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae type B are particularly important because these organisms are the ones most likely to cause severe, invasive infections in asplenic individuals. In addition, the annual influenza vaccine is recommended for all patients, including those with asplenia, since flu can lead to serious illness and secondary bacterial infections. The zoster vaccine is advised based on age to prevent shingles, and HPV vaccination is given per age guidelines; in asplenia, there’s no special restriction, so these vaccines are also considered as part of routine preventive care when appropriate. Therefore, vaccination protection for encapsulated bacteria plus age-appropriate influenza, zoster, and HPV vaccines is the best approach.

The key idea is that when the spleen is absent or nonfunctional, the body is less able to clear encapsulated bacteria, so protecting against these organisms is essential. Vaccines targeting Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae type B are particularly important because these organisms are the ones most likely to cause severe, invasive infections in asplenic individuals. In addition, the annual influenza vaccine is recommended for all patients, including those with asplenia, since flu can lead to serious illness and secondary bacterial infections. The zoster vaccine is advised based on age to prevent shingles, and HPV vaccination is given per age guidelines; in asplenia, there’s no special restriction, so these vaccines are also considered as part of routine preventive care when appropriate. Therefore, vaccination protection for encapsulated bacteria plus age-appropriate influenza, zoster, and HPV vaccines is the best approach.