Rabies Vaccine Singapore

What Is Rabies?

Rabies is a viral infection that targets the central nervous system in mammals, including humans. After entering the body, the virus travels through peripheral nerves toward the brain, where it causes inflammation and neurological disturbances.

Once clinical symptoms develop, the condition is nearly always fatal. Fortunately, rabies can be prevented through vaccination, either as a precaution before potential exposure or after suspected contact with the virus.

How Does Rabies Spread?

The rabies virus is most commonly transmitted through the saliva of infected animals via bites or scratches. In some cases, exposure may also occur if contaminated saliva contacts mucous membranes or open wounds.

Individuals travelling to areas where rabies is endemic should avoid close contact with unfamiliar animals and consider consulting a doctor about vaccination options.

Rabies Symptoms

Rabies progresses through three distinct clinical stages: prodromal, furious and paralytic. The incubation period varies widely, typically lasting between 1 to 3 months, although it may range from just a few days to over a year.

1. Prodromal Stage (2–10 days) – Early signs often mimic flu-like symptoms, including:
   • Fever and weakness
   • Headaches
   • Nausea and vomiting
   • Tingling or discomfort around the bite site
2. Furious Rabies (2–7 days) – This form affects 70–80% of symptomatic cases and may involve:
   • Severe agitation and restlessness
   • Anxiety and confusion
   • Hallucinations
   • Difficulty swallowing, sometimes accompanied by hydrophobia (fear of water)
   • Seizures
3. Paralytic Rabies (2–7 days) – In 20–30% of cases, symptoms progress more quietly with:
   • Gradual onset of muscle weakness
   • Paralysis starting from the wound area and extending to other parts of the body
   • Reduced reflexes
   • Eventual coma

Once symptoms emerge, rabies is almost always fatal, highlighting the urgency of early medical intervention and post-exposure vaccination.

How Long Does the Rabies Vaccine Last?

For general protection, a booster dose is suggested one year after the initial series for those revisiting high-risk areas. Professionals with continuous risk, such as animal handlers, may require repeat boosters every 6 months to 2 years, depending on antibody levels.

Always consult a healthcare provider to determine an appropriate booster schedule.

Rabies Vaccine Side Effects

Most people tolerate the rabies vaccine well, though some may experience temporary side effects such as:

• Pain, redness, or swelling at the injection site
• Dizziness
• Mild headaches

These symptoms are generally short-lived, but seek medical advice if they persist or worsen.

Rare But Serious Reactions to Watch For

Although uncommon, some individuals may experience severe allergic responses. Symptoms to look out for include:

• Swelling of the face or eyes
• Difficulty breathing
• Generalised itchy rash

Seek immediate medical attention if any of these signs occur after vaccination.

Disclaimer: This overview does not cover all possible side effects or medical considerations. Always consult a qualified healthcare professional for medical advice before receiving any vaccination.

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