What is unique about Capnocytophaga canimorsus transmission?

What is unique about Capnocytophaga canimorsus transmission?

• A. It spreads through food
• B. It is transmitted solely through dog bites
• C. It can be contracted from cats
• D. It is airborne

Answer: (B)

Capnocytophaga canimorsus is a bacterium that is part of the normal oral flora of dogs and, to a lesser extent, cats. The unique aspect of its transmission is that it is primarily transmitted through direct contact with dog bites or scratches. This bacterium is particularly notable because while it can cause severe infections in humans, especially in individuals with compromised immune systems or those who have had splenectomy, the most common route of infection is indeed through dog bites. The bacterium does not spread through food, which eliminates that possibility as a method of transmission. It is also not airborne, so it cannot be contracted through respiratory routes. While cats can harbor Capnocytophaga species, the most significant transmission risk and clinical relevance are associated with dogs, making bites from dogs the primary concern for human transmission. Understanding this transmission route is essential for managing risks associated with dog ownership and handling.

Capnocytophaga canimorsus is a bacterium that is part of the normal oral flora of dogs and, to a lesser extent, cats. The unique aspect of its transmission is that it is primarily transmitted through direct contact with dog bites or scratches. This bacterium is particularly notable because while it can cause severe infections in humans, especially in individuals with compromised immune systems or those who have had splenectomy, the most common route of infection is indeed through dog bites.

The bacterium does not spread through food, which eliminates that possibility as a method of transmission. It is also not airborne, so it cannot be contracted through respiratory routes. While cats can harbor Capnocytophaga species, the most significant transmission risk and clinical relevance are associated with dogs, making bites from dogs the primary concern for human transmission. Understanding this transmission route is essential for managing risks associated with dog ownership and handling.