Which disease is a bacterial infection that can affect both wild and domestic animals?

Leptospirosis is indeed a bacterial infection that can impact both wild and domestic animals. It is caused by bacteria of the genus Leptospira and can affect a wide range of animals, including pets like dogs and cats, as well as livestock and wildlife. This disease is transmitted through contact with contaminated water or soil, urine from infected animals, or directly from other animals.

The potential for transmission to humans also makes leptospirosis particularly significant in veterinary and public health contexts. It can lead to a variety of symptoms ranging from mild flu-like symptoms to severe disease, highlighting the importance of understanding its impact on different species.

In contrast, the other options listed (Parvovirus, Adenovirus, and Canine distemper) are viral infections that primarily affect domestic animals, particularly dogs, and do not have the same breadth of impact on wildlife or livestock as leptospirosis. This distinction further emphasizes why leptospirosis is the correct answer for the question regarding a disease caused by a bacterial infection affecting both wild and domestic animals.