A microbiologist in our facility received 2 doses of Trumenba (MenB-FHbp) 6 months apart. Does he need to receive a third dose?

No. The 3-dose series (at 0, 1–2 and 6 months) is intended to rapidly induce immunity to serogroup B meningococcal bacteria. If a microbiologist or other person at increased risk has received 2 doses of Trumenba or Bexsero separated by 6 months, then their primary vaccine series is considered complete. This microbiologist will need his first booster dose 1 year after the final dose of the primary series, then a booster dose every 2 to 3 years, as long as he remains at increased risk. Use the same type of MenB vaccine for all primary series and booster doses.