Which two diseases are zoonotic and require standard preventative measures such as PPE, vaccination of companion animals, strict hygiene, and quarantine when indicated?

• A. Rabies and salmonellosis; PPE, vaccination of companion animals, strict hygiene, and quarantine when indicated.
• B. Canine distemper and parvovirus; vaccination only.
• C. Leptospirosis and ringworm; isolation only.
• D. Flea allergy dermatitis and mange; no quarantine required.

Answer: (B)

Zoonotic disease control relies on consistent protective precautions, including personal protective equipment (PPE), vaccination of companion animals when vaccines exist, strict hygiene, and isolation or quarantine of infected animals when indicated. Leptospirosis and ringworm fit this pattern because they readily pass from animals to humans and require these standard safeguards to prevent transmission.

Leptospirosis is a bacterial infection shed in the urine of infected animals and can contaminate water, soil, or a shared environment. People can become infected through skin wounds or mucous membranes. Protecting handlers with PPE when there’s potential exposure, vaccinating dogs against Leptospira, practicing rigorous hand hygiene and environmental cleaning, and isolating or quarantining suspected cases until they are no longer contagious are all essential to reduce risk.

Ringworm is a fungal dermatophyte infection that spreads via direct contact with infected animals or contaminated bedding and environments. It’s easily transmissible to humans, so PPE and meticulous hygiene are important, along with cleaning and disinfection of environments to remove fungal spores. Infected animals are typically isolated or quarantined until treatment reduces contagiousness. While vaccination of companion animals can be part of broader zoonosis prevention in some settings, ringworm control mostly hinges on hygiene, isolation, and environmental decontamination.

The other options don’t meet all parts of the scenario: those disease pairs are either not both zoonotic, or the recommended precautions aren’t aligned with PPE, animal vaccination, hygiene, and quarantine together.