Which pathogens are common in human bites?

Human bites are particularly concerning due to the unique flora found in the human mouth. Eikenella corrodens, a facultative anaerobic gram-negative bacillus, is a significant pathogen commonly associated with human bites. It is part of the normal oral flora and becomes problematic when introduced to deeper tissues through a bite. Streptococci and staphylococci, which are also part of the normal skin and oral flora, can contribute to the infectious process following a human bite, leading to soft tissue infections. This combination of pathogens makes option A the most accurate representation of the typical microbiology involved in human bite injuries.

While other options mention different pathogens, they do not reflect the most common culprits associated with human bite wounds. Staphylococcus aureus is found in human bites, but Pseudomonas is less common in these cases and more common in other types of wounds or infections. Capnocytophaga is associated with animal bites rather than human bites. The mention of HIV and Hepatitis B in a bite context generally pertains to the risk of blood-borne infections rather than the immediate resultant infections from a human bite. Therefore, option A is the best choice reflecting the typical pathogens encountered in human bite injuries.