What should be done with animals that exhibit signs of disease during quarantine?

When animals exhibit signs of disease during quarantine, it is crucial to provide them with appropriate treatment. Quarantine is implemented to monitor the health status of incoming animals and to prevent the spread of potential pathogens to existing animal populations. Animals showing signs of illness must be carefully evaluated and treated as necessary to ensure their health and well-being. Providing treatment not only aids in the recovery of the affected animals but also helps to protect other animals in the facility from potential transmission of disease.

The other options do not appropriately address the health of the animals. Returning animals to the vendor may not provide a solution and can risk spreading disease, while ignoring minor symptoms may lead to exacerbation of undetected health issues. Isolating sick animals is a good practice to prevent disease spread, but without treatment, their health could deteriorate, compromising their recovery and care. Therefore, the appropriate approach is to administer treatment as needed to promote recovery and maintain overall biosecurity.