A motile, Gram-negative, slender, curved rod causing enteritis is best isolated on which agar?

Campylobacter blood agar is specifically designed to isolate Campylobacter species, which are motile, Gram-negative, slender, and curved rods known to cause gastroenteritis. This type of agar is enriched with nutrients and contains antibiotics that inhibit the growth of competing flora, allowing for the selective cultivation of Campylobacter.

The composition of Campylobacter blood agar, which includes a rich source of nutrients and the selective agents, creates an ideal environment for the growth of these bacteria while suppressing other microorganisms that could interfere with their isolation. This media also provides conditions that favor the unique oxygen requirements of Campylobacter, as they are microaerophilic organisms.

In contrast, the other agar types mentioned have different applications or do not offer the same selective properties that Campylobacter blood agar provides. Chocolate agar, for instance, is used for a broader range of fastidious organisms but is not selective for Campylobacter. MacConkey agar is designed for enteric Gram-negative bacteria and can potentially grow other non-pathogenic organisms, thus making it less suitable for isolating Campylobacter species specifically. XLD agar is typically used for enteric pathogens and is particularly effective in isolating Salmonella and Shigella, but it is not optimized