Rabies Prophylaxis Guidelines

Pre-Exposure and Post-Exposure Prophylaxis

The Centers for Disease Control and Prevention (CDC) recommends receiving one of the ACIP-recommended pre-exposure or post-exposure prophylaxis regimens with cell-culture vaccines for individuals at risk of exposure, such as laboratory workers, veterinarians, and travelers to endemic areas 1, 2, 3, 4, 1, 5
Individuals who received another vaccine regimen, other than cell-culture vaccine, should have documented adequate rabies virus-neutralizing antibody response, as recommended by the CDC 1

The Advisory Committee on Immunization Practices (ACIP) recommends a 2-dose vaccine regimen for previously vaccinated individuals, with the first dose administered immediately upon presentation and the second dose 3 days after the first dose 1, 2, 5
For immunocompetent individuals, the recommended regimen is 4 doses (days 0, 3, 7, and 14), while for immunocompromised patients, the standard 4-dose regimen should be expanded to a 5-dose regimen (days 0, 3, 7, 14, and 28), as stated by the CDC and supported by the ACIP 6
Pre-exposure prophylaxis is recommended for individuals at high risk of exposure and consists of 3 doses of vaccine administered on days 0, 7, and 21 or 28, as recommended by the CDC 2, 3, 4, 1, 5

The CDC advises that Rabies Immunoglobulin (RIG) should NOT be administered to previously vaccinated individuals, as it may inhibit the strength or rapidity of the expected anamnestic response in individuals, as recommended by the ACIP 2, 1
RIG should be given immediately with the first vaccine dose, or up to 7 days after the first vaccine dose, but is not indicated beyond 7 days, as excessive dosage can partially suppress active antibody production, as noted by the CDC and supported by the ACIP 5, 1, 6, 2

Local wound care remains essential in the management of potential rabies exposure, and the CDC recommends thoroughly cleansing all wounds with soap and water for at least 15 minutes, and using a virucidal agent to irrigate the wounds if available, as advised by the CDC 1, 4, 2, 5, 6
Previously vaccinated persons are already immunologically primed against rabies, and administration of passive antibody (RIG) might inhibit the relative strength or rapidity of the expected anamnestic response, as recommended by the CDC and supported by the ACIP 2

For previously vaccinated persons exposed to rabies, determining the rabies virus neutralizing antibody titer for decision-making about prophylaxis is inappropriate due to the time required to collect serum and determine test results, the lack of a definitive "protective" titer, and the involvement of other immune effectors beyond neutralizing antibodies in disease prevention, as recommended by the CDC and supported by the ACIP 2
High-risk individuals should check antibody titers every 6 months, and frequent-risk individuals should check titers every 2 years, as recommended by the CDC 2, 3, 4, 1, 5

Pregnancy is not a contraindication to post-exposure prophylaxis (PEP), according to the American College of Obstetricians and Gynecologists (ACOG) and the CDC, but corticosteroids and other immunosuppressive agents can interfere with vaccine response, and immunosuppressive agents should not be administered during PEP unless essential, as stated by the CDC 4
Immunocompromised patients require special management, including consultation with public health officials and consideration of antibody titer testing 2-4 weeks after booster doses, as recommended by the CDC 2
The gluteal area should never be used for vaccine injections as this results in lower neutralizing antibody titers, as noted by the CDC 1
The CDC recommends consulting public health officials for exposures to uncommon species, when the animal has escaped and cannot be tested, or for any questions about the need for rabies prophylaxis, as well as for management of serious adverse reactions, and healthcare providers should evaluate each possible rabies exposure considering species of biting animal, circumstances of biting incident, type of exposure, and vaccination status of biting animal, as recommended by the WHO and the CDC 2, 4, 6, 1