Current CDC recommendations for post-exposure prophylaxis (PEP) to aerosolized B. anthracis spores include 60 days of oral antibiotics and a three dose series of AVA.

Current CDC recommendations for post-exposure prophylaxis (PEP) to aerosolized B. anthracis spores include 60 days of oral antibiotics and a three dose series of AVA.

• A. False
• B. Not addressed
• C. Unknown
• D. True

Answer: (D)

Post-exposure prophylaxis for inhalational anthrax combines immediate antibiotic protection with vaccination to build immunity. The antibiotic part is given for 60 days to cover the window when spores may germinate and illness could develop even after exposure. At the same time, the Anthrax Vaccine Adsorbed (AVA) is given as a three-dose series to stimulate protective antibodies, helping establish longer-term immunity while the antibiotics are ongoing. The antibiotic course is continued for the full 60 days regardless of vaccination status because vaccine-induced protection needs time to develop and cannot replace the immediate protection antibiotics provide. So, having 60 days of oral antibiotics plus a three-dose AVA series is consistent with current guidance, making the statement true.

Post-exposure prophylaxis for inhalational anthrax combines immediate antibiotic protection with vaccination to build immunity. The antibiotic part is given for 60 days to cover the window when spores may germinate and illness could develop even after exposure. At the same time, the Anthrax Vaccine Adsorbed (AVA) is given as a three-dose series to stimulate protective antibodies, helping establish longer-term immunity while the antibiotics are ongoing. The antibiotic course is continued for the full 60 days regardless of vaccination status because vaccine-induced protection needs time to develop and cannot replace the immediate protection antibiotics provide. So, having 60 days of oral antibiotics plus a three-dose AVA series is consistent with current guidance, making the statement true.