Ciprofloxacin for 60 days is used as prophylaxis for exposed patients for which disease?

Ciprofloxacin for 60 days is used as prophylaxis for exposed patients for which disease?

• A. Smallpox
• B. Anthrax
• C. Plague
• D. Botulism

Answer: (B)

Post-exposure prophylaxis with ciprofloxacin for 60 days is used when there’s exposure to Bacillus anthracis, the agent that causes inhalational anthrax. The reason for the 60-day duration is the long and variable incubation period: inhaled spores can germinate and cause disease weeks after exposure, so protecting for up to about two months covers the time frame in which illness could develop. Ciprofloxacin is active against the organism and is a standard choice for post-exposure prophylaxis; doxycycline is another option. The other diseases require different preventive approaches—smallpox is prevented by vaccination, botulism prophylaxis isn’t typically given as an antibiotic course, and plague prophylaxis exists but isn’t defined by a 60-day regimen in the same way as anthrax exposure.

Post-exposure prophylaxis with ciprofloxacin for 60 days is used when there’s exposure to Bacillus anthracis, the agent that causes inhalational anthrax. The reason for the 60-day duration is the long and variable incubation period: inhaled spores can germinate and cause disease weeks after exposure, so protecting for up to about two months covers the time frame in which illness could develop. Ciprofloxacin is active against the organism and is a standard choice for post-exposure prophylaxis; doxycycline is another option. The other diseases require different preventive approaches—smallpox is prevented by vaccination, botulism prophylaxis isn’t typically given as an antibiotic course, and plague prophylaxis exists but isn’t defined by a 60-day regimen in the same way as anthrax exposure.