All of the following are important biosecurity measures during the investigation of a vesicular disease outbreak EXCEPT:

• A. Clean/disinfect equipment used
• B. Notify the media so they can tell the public to stay away from the farm
• C. Use personal protective equipment (PPE)
• D. Work from healthiest animals to sickest animals

Answer: (B)

The main idea tested is which actions directly prevent the spread of a vesicular disease during an investigation. Cleaning and disinfecting equipment removes virus that could be carried from one animal or site to another, which is a core biosecurity practice. Using personal protective equipment protects both people and animals from exposure and reduces cross-contamination. Working from healthier animals to sicker ones minimizes the chance that highly infectious material from severely affected cases is spread through handlers, surfaces, or shared tools. Notifying the public or media, while important for risk communication, does not in itself reduce transmission or contamination at the farm or in the field, and thus isn’t a biosecurity measure. Public messaging is handled separately by authorities, while the biosecurity plan focuses on prevention, containment, and decontamination.