Management of Squirrel Bites

Immediate Wound Management

Irrigate the wound copiously with soap and water for at least 15 minutes immediately after the bite, reducing infection risk and markedly decreasing rabies transmission in animal studies, as recommended by the Centers for Disease Control and Prevention 3, 1, 4
Follow irrigation with a virucidal agent such as povidone-iodine solution if available, taking care not to damage skin or tissues, according to the MMWR Recommendations and Reports 3, 1
Avoid primary closure of the wound unless it is a facial wound requiring cosmetic consideration, as infected wounds should never be closed, and non-infected wounds may be approximated with Steri-Strips rather than sutures, as suggested by the Praxis Medical Insights 2, 4

Administer tetanus toxoid 0.5 mL intramuscularly if vaccination status is outdated or unknown, as recommended by the Praxis Medical Insights 1, 2, 4
For dirty wounds, a booster is needed if more than 5 years have elapsed since the last dose; for clean wounds, a booster is needed if more than 10 years have elapsed, according to the Praxis Medical Insights 2

Rabies prophylaxis is generally NOT required for squirrel bites in the United States, as small rodents including squirrels are not considered significant rabies vectors and are rarely infected with rabies, as stated by the MMWR Recommendations and Reports and the Praxis Medical Insights 3, 2, 4
If rabies prophylaxis is deemed necessary after consultation, previously unvaccinated persons should receive human rabies immune globulin (HRIG) at exactly 20 IU/kg body weight as a single dose on day 0, with the full dose infiltrated around and into the wound if anatomically feasible, as recommended by the Praxis Medical Insights 1, 4

Initiate amoxicillin-clavulanate as first-line oral antibiotic therapy for prophylaxis or treatment of infected squirrel bite wounds, providing broad coverage for the polymicrobial nature of these infections, as suggested by the Praxis Medical Insights 2, 4
Standard wound infections should be treated for 7-10 days, according to the Praxis Medical Insights 2

Follow up within 24 hours by phone or office visit for all outpatients to assess for signs of infection, lymphadenitis, or systemic symptoms, as recommended by the Praxis Medical Insights 2, 4
Consider hospitalization if infection progresses despite appropriate antimicrobial therapy, deep tissue involvement is suspected, or the patient is immunocompromised, according to the Praxis Medical Insights 2

Do not delay wound irrigation while waiting for medical evaluation – immediate washing is critical, as emphasized by the MMWR Recommendations and Reports and the Praxis Medical Insights 3, 1
Do not assume rabies risk is zero without consulting local health authorities, though it is exceedingly rare for squirrels, as stated by the MMWR Recommendations and Reports and the Praxis Medical Insights 3, 2
Hand wounds or wounds near joints require expert evaluation for potential penetration into synovium or bone and may necessitate hospitalization and intravenous antibiotics, according to the Praxis Medical Insights 2