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Rabies is a severe infectious disease. Once symptoms appear, there is no effective cure, and the disease is almost always fatal. Rabies can be transmitted to humans through bites, scratches, or saliva contacting an open wound from infected mammals, including dogs, cats, and wild animals.
Although rabies is extremely serious, it can be effectively prevented through vaccination. Pre-exposure vaccination is an important preventive measure, particularly for people at increased risk.
What Is Pre-Exposure Rabies Vaccination?
Pre-exposure prophylaxis, or PrEP, refers to rabies vaccination given before a person has been bitten, scratched, or exposed to the virus.
The vaccine prepares the immune system in advance. Should exposure occur in the future, the body can respond more rapidly and effectively.
Who Should Consider Pre-Exposure Vaccination?
Pre-exposure rabies vaccination may be recommended for people at increased risk, including:
- Veterinarians and veterinary assistants
- Animal-control officers
- People who work closely with animals, such as those caring for large numbers of animals
- People living in or travelling to areas where rabies is prevalent
- Young children living in high-risk areas, as they may come into contact with animals without recognising or reporting the risk
Vaccination Schedule
According to standard vaccination guidelines, the vaccine may be administered in two ways:
- Intramuscular injection (IM): Two doses given on days 0 and 7
- Intradermal injection (ID): Two vaccination sessions given on days 0 and 7
The appropriate method should be determined by a healthcare professional.
Benefits of Pre-Exposure Vaccination
- Prepares the immune system to respond more rapidly after exposure
- Reduces the number of vaccine doses required after exposure
- Simplifies post-exposure treatment
- Provides additional protection for people at increased risk
What Should You Do After Exposure if You Have Already Been Vaccinated?
Even after completing pre-exposure vaccination, anyone who is bitten, scratched, or otherwise exposed to a potentially infected animal should seek medical attention immediately.
In general:
- Booster doses are still required
- Two vaccine doses are usually administered on days 0 and 3
- Rabies immunoglobulin is generally not required for people who have previously completed an appropriate rabies vaccination course
The wound should also be washed immediately and thoroughly with soap and running water.
Safety and Possible Side Effects
Rabies vaccines have a good safety profile. Possible side effects include:
- Pain, swelling, or redness at the injection site
- Mild fever or temporary fatigue
These reactions are generally mild and resolve on their own.
Conclusion
Pre-exposure rabies vaccination is an effective preventive measure, particularly for people at increased risk. It prepares the immune system in advance, simplifies treatment after exposure, and provides greater long-term protection.
However, vaccination does not replace medical care after an animal bite or scratch. Anyone who may have been exposed to rabies should clean the wound immediately and consult a healthcare professional as soon as possible.
