If treatment is required for Salmonella (eg, severe illness, bacteraemia), which antibiotic is an option?

If treatment is required for Salmonella (eg, severe illness, bacteraemia), which antibiotic is an option?

• A. Ciprofloxacin
• B. Penicillin G
• C. Metronidazole
• D. Azithromycin

Answer: (A)

When Salmonella causes severe illness or bacteremia, you want an antibiotic with reliable activity against Salmonella and good penetration into intracellular sites where the bacteria can reside. Ciprofloxacin, a fluoroquinolone, fits this need well because it has strong activity against Salmonella species and penetrates macrophages effectively, making it effective for systemic disease. It can be given orally or IV, allowing flexible treatment as the patient improves. Penicillin G isn’t active against Salmonella in practice, so it isn’t a suitable choice for this scenario. Metronidazole targets anaerobes and certain parasites, not Salmonella, so it wouldn’t treat systemic Salmonella infection. Azithromycin can be used for some Salmonella infections, especially uncomplicated gastroenteritis, but for bacteremia and severe illness, ciprofloxacin is the more established option due to its proven efficacy and pharmacokinetic profile.

When Salmonella causes severe illness or bacteremia, you want an antibiotic with reliable activity against Salmonella and good penetration into intracellular sites where the bacteria can reside. Ciprofloxacin, a fluoroquinolone, fits this need well because it has strong activity against Salmonella species and penetrates macrophages effectively, making it effective for systemic disease. It can be given orally or IV, allowing flexible treatment as the patient improves.

Penicillin G isn’t active against Salmonella in practice, so it isn’t a suitable choice for this scenario. Metronidazole targets anaerobes and certain parasites, not Salmonella, so it wouldn’t treat systemic Salmonella infection. Azithromycin can be used for some Salmonella infections, especially uncomplicated gastroenteritis, but for bacteremia and severe illness, ciprofloxacin is the more established option due to its proven efficacy and pharmacokinetic profile.