Rabies Management in the ED

Kimberly Bambach, MD and Geoffrey Comp, DO, FACEP

on Spotify

The summary below is from an episode of ERcast: Clinical Perspectives

Rabies is rare in the United States but almost uniformly fatal once symptoms begin, so emergency care hinges on exposure recognition and timely post-exposure prophylaxis. Bat exposures deserve special attention, and management centers on wound care, vaccine, immune globulin, and public health consultation when the decision is uncertain.

Rabies Exposure Assessment and PEP

Near-universal fatal infection: Rabies has the highest case fatality rate of any human infectious disease, making prevention after an exposure the critical ED task rather than waiting for symptoms to declare themselves.
US reservoir animals: In the United States, bats, raccoons, skunks, and foxes are the key rabies reservoirs, while small mammals such as squirrels, mice, rabbits, and guinea pigs generally do not trigger PEP.
Bat exposure red flags: A known or suspected bat bite warrants prophylaxis, and even a bat found in a sleeping person's room or in a room with a child is enough to treat. We get into the bedside decision nuance in the episode.
Dog and cat observation: Healthy-appearing dogs and cats can be observed for 10 days for signs of rabies, while stray animals may need testing through public health channels rather than empiric assumptions.
Core PEP regimen: Post-exposure prophylaxis combines rabies vaccine given on days 0, 3, 7, and 14 with rabies immune globulin, which should be infiltrated around the wound when feasible.
Special population adjustments: Prior pre-exposure vaccination changes the regimen by eliminating immune globulin, and immunocompromised patients need an extra vaccine dose plus post-series testing for adequate response.
Public health consultation: When the exposure story is unclear, local health departments can help with regional epidemiology, animal testing, and follow-up logistics that often determine whether PEP is actually indicated.
Basic wound care priorities: Rabies management still starts with meticulous irrigation, tetanus review, and bacterial prophylaxis when indicated, because bite care is not replaced by vaccine and immune globulin.

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References:

CDC. Rabies. CDC. Published 2019. Accessed March 11, 2024 https://www.cdc.gov/rabies/index.html
State and Local Rabies Consultation Contacts | Resources | CDC. www.cdc.gov. Published February 23, 2023. Accessed March 11, 2024. https://www.cdc.gov/rabies/resources/contacts.html
World Health Organization. WHO Expert Consultation on Rabies. Second report. World Health Organ Tech Rep Ser. 2013;(982):1-139, back cover. PMID: 24069724.
Zhu S, Guo C. Rabies Control and Treatment: From Prophylaxis to Strategies with Curative Potential. Viruses. 2016 Oct 28;8(11):279. doi: 10.3390/v8110279. PMID: 27801824
Willis, Zachary I., and David J. Weber. "Rabies." Tintinalli's Emergency Medicine: A Comprehensive Study Guide, 9e Eds. Judith E. Tintinalli, et al. McGraw-Hill Education, 2020,https://accessemergencymedicine.mhmedical.com/content.aspx?bookid=2353&sectionid=220292822

Faculty

Geoffrey Comp, DO, FACEP
Dr. Comp is an Associate Program Director for the Creighton University / Valleywise Health Emergency Medicine Residency Program in Phoenix. A clinician-educator at heart, Geoff spends his time mentoring the next generation of Emergency Medicine residents and advocating for better ways to teach and learn medicine. His professional world revolves around wilderness medicine, clinician wellness, and finding innovative ways to bridge the gap between theory and the bedside. When he isn’t in the ED or the classroom, you’ll likely find him combining his love for medicine with his passion for the outdoors, always looking for a new trail to explore or a new way to collaborate with fellow clinicians.
Kimberly Bambach, MD