Veterinary Technician Practice Exam

How is a carrier animal significant in the context of infectious diseases?

1. It shows clear symptoms of illness

2. It can transmit the disease without showing symptoms

3. It is resistant to all diseases

4. It creates antibodies for other animals

The correct answer is: It can transmit the disease without showing symptoms

A carrier animal plays a crucial role in the transmission of infectious diseases because it can harbor and spread pathogens without exhibiting any outward signs of illness. This asymptomatic state can make it challenging for veterinarians and pet owners to identify and manage potential outbreaks, as the carrier can infect other susceptible animals or humans without detection. In contrast, animals that show clear symptoms of illness can be identified and treated more easily, reducing the likelihood of transmission. The notion of an animal being resistant to all diseases is inaccurate, as most animals can be susceptible to at least some pathogens. Lastly, while carrier animals may contribute to herd immunity in the context of a population's overall health, they do not specifically create antibodies for other animals; instead, they may carry pathogens that could compromise the health of others. Understanding the role of carrier animals is essential for effective disease control and prevention strategies in veterinary medicine and public health.