# New Pet at Home: Should You Quarantine First?


## Key Takeaways

- A quarantine period for a new pet is crucial for preventing the transmission of zoonotic and contagious diseases, such as respiratory infections (e.g., Bordetella bronchiseptica, feline herpesvirus) and ectoparasites (e.g., fleas, *Otodectes cynotis*), to resident animals.
- Key clinical signs to monitor during quarantine include sneezing, coughing, ocular/nasal discharge, diarrhea, vomiting, lethargy, and dermatological lesions indicative of parasitic infestations or fungal infections like ringworm (*Microsporum canis*).
- A veterinary examination is paramount for assessing the new pet's health status, including vaccination history, fecal parasite screening (e.g., flotation for ova and parasites), and potentially serological testing for specific pathogens like FeLV/FIV in cats.
- Implementing strict hygiene protocols, such as thorough handwashing between handling animals and using separate feeding, watering, and elimination areas, significantly mitigates indirect transmission routes.
- Gradual introduction of the new pet to resident animals should only commence after a clean bill of health is established by a veterinarian and any identified health concerns have been resolved.
- High-risk resident pets, including senior animals, immunocompromised individuals, unvaccinated puppies/kittens, or those with chronic illnesses, necessitate a more stringent quarantine and veterinary evaluation due to their increased susceptibility to severe disease.

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**A short separation period helps protect resident pets when a new dog [or cat](/knowledge/veterinary-medicine/preventive-care/or-cat-logical-health) comes home. It gives time to check for coughing, sneezing, diarrhea, parasites, ringworm-like skin lesions, and appetite problems. Schedule a veterinary exam before close contact when the new pet's history is unknown.**

## What symptoms or causes should I watch for?

- **Respiratory disease:** Sneezing, coughing, eye discharge, and nasal discharge can spread between pets.
- **Parasites:** Fleas, ear mites, [intestinal parasites](/knowledge/parasites/pet-parasites/intestinal-parasites-dogs-cats-identification-treatment), and ticks can enter the home with a new pet.
- **Skin infections:** Patchy hair loss, crusting, or circular lesions may need evaluation before contact.
- **Stress diarrhea:** Travel, shelter stays, and diet changes can cause stool changes.
- **Unknown vaccine status:** Incomplete records increase uncertainty for resident animals.

## What can I safely do at home right now?

- **Use a separate room:** Give the new [pet food](/knowledge/veterinary-medicine/nutrition/pet-food), water, bedding, and litter or potty access away from resident pets.
- **Wash hands:** Handle the new pet and clean supplies before touching other animals.
- **Watch daily signs:** Track appetite, stool, coughing, sneezing, itching, and energy.
- **Book a checkup:** Bring records and ask about vaccines, testing, and parasite control.
- **Introduce gradually:** Use scent swapping and supervised contact only when health concerns are addressed.

## When is this an emergency?

Go to an emergency veterinary clinic now if you notice:

- Coughing, trouble breathing, fever, eye discharge, or nasal discharge.
- Vomiting, bloody diarrhea, not eating, or severe lethargy.
- Fleas, ticks, ear debris, worms, or intense itching.
- Hair loss, crusting, or skin lesions that could be contagious.
- Resident pets are senior, immunocompromised, unvaccinated, or chronically ill.

## What will my veterinarian check?

Your veterinarian may recommend an exam, stool testing, FeLV/FIV testing for cats, vaccines, parasite treatment, and timing for introductions.

## How can I reduce the risk next time?

Keep new-pet records, complete recommended testing, and introduce pets slowly after medical concerns are addressed.

## Related veterinary guides

- [How Is AI Changing Veterinary Care?](/knowledge/veterinary-medicine/veterinary-technology/how-ai-is-changing-veterinary-care)
- [Why Is My Cat Not Eating? A Vet-Reviewed Guide for Pet Owners](/knowledge/veterinary-medicine/symptom-guides/why-is-my-cat-not-eating)
- [Can Dogs Eat Grapes? What To Do Right Now](/knowledge/veterinary-medicine/toxicology-and-food-safety/can-dogs-eat-grapes)
- [What Should I Do If My Dog Eats Chocolate?](/knowledge/veterinary-medicine/toxicology-and-food-safety/what-should-i-do-if-my-dog-eats-chocolate)

## Related Clinical & Scientific Guides

* [Dog Allergic Reaction: Comprehensive Veterinary Reference Guide](/knowledge/veterinary-medicine/preventive-care/dog-allergic-reaction)
* [Puppy Socialization and Preventive Behavior: Early Training and Handling](/knowledge/veterinary-medicine/preventive-care/puppy-socialization-preventive-behavior)
* [Dog Boarding 101: How to Choose the Best Facility for Your Pet](/knowledge/veterinary-medicine/preventive-care/dog-boarding-guide)


## References

- [AAHA/AVMA - Preventive Healthcare Guidelines for Dogs and Cats](https://www.aaha.org/wp-content/uploads/globalassets/02-guidelines/preventive-healthcare/aaha-preventive-healthcare-guidelines-for-dogs-and-cats.pdf)
- [AAHA/AAFP - Feline Life Stage Guidelines](https://www.aaha.org/aaha-guidelines/2021-aaha-aafp-feline-life-stage-guidelines/)
- [Pets & Parasites - CAPC Pet Owner Resources](https://www.petsandparasites.org/resources/capc-guidelines/)

*Disclaimer: This article is for educational and informational purposes only. It does not constitute medical advice, does not establish a vet-client-patient relationship, and should not replace an in-person evaluation by a licensed veterinarian.*