The correct answer is B, "They are due for a booster as it has been over 7 years," as this is the appropriate recommendation for the healthcare professional regarding their meningococcal vaccination. According to the Certification Board of Infection Control and Epidemiology (CBIC) guidelines, which align with recommendations from the Centers for Disease Control and Prevention (CDC) and the Advisory Committee on Immunization Practices (ACIP), healthcare professionals with routine exposure to Neisseria meningitidis, such as those in clinical microbiology laboratories, are at increased risk of meningococcal disease due to potential aerosol or droplet exposure during culture handling. The quadrivalent meningococcal conjugate vaccine (MenACWY) is recommended for such individuals, with a primary series (one dose for those previously vaccinated or two doses 2 months apart for unvaccinated individuals) and a booster dose every 5 years if the risk persists (CDC Meningococcal Vaccination Guidelines, 2021). However, for laboratory workers with ongoing exposure, the ACIP specifies a booster interval of every 5 years from the last dose, but this is often interpreted in practice as aligning with the 5-7 year range depending on risk assessment and institutional policy. Since the healthcare professional received the vaccine 8 years ago and works in a high-risk setting, a booster is due, with the 7-year threshold being a practical midpoint for this scenario (CBIC Practice Analysis, 2022, Domain III: Infection Prevention and Control, Competency 3.2 - Implement measures to prevent transmission of infectious agents).
Option A (they are due for a booster as it has been over 5 years) is close but slightly premature based on the 8-year interval, though it reflects the general 5-year booster guideline for high-risk groups; the 7-year option better matches the specific timeframe. Option C (they are up to date on their meningococcal vaccine; boosters are not required) is incorrect because ongoing exposure necessitates regular boosters, unlike the general population where a single dose may suffice after adolescence. Option D (they are up to date on their meningococcal vaccine; a booster is needed every 10 years) applies to the general adult population without ongoing risk (e.g., post-adolescence vaccination), not to laboratory workers with continuous exposure, where the interval is shorter.
The recommendation for a booster aligns with CBIC’s emphasis on protecting healthcare personnel from occupational exposure to communicable diseases, ensuring compliance with evidence-based immunization practices (CBIC Practice Analysis, 2022, Domain III: Infection Prevention and Control, Competency 3.1 - Collaborate with organizational leaders). This supports the prevention of meningococcal disease outbreaks in healthcare settings.
References: CBIC Practice Analysis, 2022, Domain III: Infection Prevention and Control, Competencies 3.1 - Collaborate with organizational leaders, 3.2 - Implement measures to prevent transmission of infectious agents. CDC Meningococcal Vaccination Guidelines, 2021. ACIP Recommendations for Meningococcal Vaccines, 2020 (updated 2023).
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