“…In other words, we observed a much less favorable response of Campylobacter peritonitis to cefazolin than was reported by Elshafie et al (9), whose 3 cases of Campylobacter peritonitis were all susceptible to cefazolin (9). Earlier studies have reported effective regimes including cefazolin (9), erythromycin plus tobramycin (13), clarithromycin (14), imipenem (15), meropenem (16), gentamicin plus ciprofloxacin (17), vancomycin plus norfloxacin (18), vancomycin plus netilmicin and ciprofloxacin (19), and vancomycin plus gentamicin (20). Interestingly, all 6 patients who failed to respond by day 5 in our series (Table 3) improved after administration of an oral macrolide (erythromycin or clarithromycin); 5 achieved a complete cure, and 1 patient experienced relapse of culture-negative peritonitis.…”