Rabies: Why Every Bite or Scratch Needs Immediate Medical Attention

Rabies is a serious viral infection that can be fatal once clinical symptoms develop. Prompt medical attention after a potentially risky animal bite or exposure is essential because post-exposure treatment can prevent the disease before symptoms appear. MGMCH's 24×7 Emergency Medicine Department provides emergency care for conditions including dog bites, while its Department of Infectious Diseases provides specialised care for infectious conditions and preventive vaccines.

If you or a family member has experienced a potentially risky animal bite or scratch, seek prompt medical evaluation so that the wound can be assessed and appropriate post-exposure care can be determined.

What is Rabies?

Rabies is a viral disease of the central nervous system. The rabies virus spreads from the bite/scratch site to the brain via nerves. Once the virus reaches the central nervous system and clinical symptoms develop, rabies is almost always fatal. There is no proven curative treatment once clinical rabies develops, which is why post-exposure prophylaxis must be started before symptoms appear.

How is Rabies Spread?

Rabies is transmitted through the saliva of an infected animal. Typically occurs via:

• A bite from an infected dog, cat, monkey, or wild animal
• A scratch, particularly if the animal's claws have saliva on them
• Licks to broken skin, open wounds, or mucous membranes such as eyes, nose, or mouth

Dogs are responsible for the majority of human rabies deaths worldwide, although other mammals, including cats, bats, and other wild animals, can also transmit the virus. One of the myths is that only dog bites are dangerous. In fact, a dog scratch, cat scratch, or any bite or scratch from a potentially rabid mammal should be assessed promptly by a healthcare professional.

Rabies Symptoms in Humans

The rabies incubation period (time from exposure to onset of symptoms) is typically 2-3 months but can be as short as a few days to more than a year depending on the location and depth of the bite. The incubation period can be shorter when exposure occurs closer to the brain, such as with bites involving the head or neck.

The initial signs of rabies in humans can be confused with the flu:

• Weakness of the body
• Headache
• Itching, tingling, or pain at the wound site area

During the later stages of the disease, more serious symptoms become evident:

• Anxiety, agitation, and confusion
• Trouble swallowing and drooling
• Avoidance of water (hydrophobia) and sensitivity or fear triggered by air currents (aerophobia)
• Muscle spasms and paralysis

Once clinical symptoms of rabies develop, the disease is almost always fatal, so post-exposure care must begin before symptoms appear.

Rabies Symptoms in Dogs and Cats

Understanding the signs of rabies in dogs and cats can help pet owners take quick action to keep their family safe. Affected dogs may experience changes in their behavior; they may become extremely aggressive, salivate more than usual, become disoriented, or develop hind leg paralysis (late stage).

Rabies symptoms in cats are similar: irritability, hiding, loss of appetite, and progressive paralysis. Dogs and cats can also have a "paralytic form" of the disease, with the animal becoming unusually quiet and withdrawn, instead of aggressive, and this often goes unnoticed by their owners.

Rabies Treatment: What to Do After a Bite or Scratch

Unfortunately, there is no curative treatment when symptoms of rabies are present, so the only defense against rabies is taking prompt action to treat it.

Step 1: Wash the Wound

Wash the wound thoroughly with soap and plenty of running water for at least 15 minutes. Thorough wound washing can help reduce the risk of infection.

Step 2: Go to a Hospital

Go to a hospital as soon as possible. MGMCH's Emergency Medicine Department operates 24×7 and specifically lists dog bites among the emergencies it manages.

Step 3: Get Medical Assessment

A healthcare professional should assess whether rabies post-exposure prophylaxis (PEP) is required. When indicated, rabies vaccination should be started as soon as possible. For certain higher-risk exposures, rabies immunoglobulin (RIG) may also be recommended and is administered around the wound according to clinical guidelines.

Rabies Vaccine Schedule and Dosage

The rabies post-exposure vaccination schedule depends on the vaccination route, exposure category, and whether the person has previously received rabies vaccination. Healthcare professionals should determine the appropriate schedule according to current national and clinical guidelines.

Most vaccines in use are the purified chick embryo cell vaccines popular throughout India for pre- and post-exposure prophylaxis. It is injected into a muscle, typically the outer thigh muscle (deltoid) in adults and the outer thigh muscle in young children.

Common reactions may include soreness, redness, or swelling at the injection site, and some people may experience mild systemic symptoms such as headache or fever. Serious reactions are uncommon.

Rabies Injection and Vaccine for Dogs

Prevention doesn't stop with humans. Rabies vaccination for dogs (regular booster) and a rabies shot for dogs at the right time protects pets and minimizes the threat to families. Regular rabies vaccination of dogs is an important part of rabies prevention.

Pet owners should follow the vaccination schedule recommended by a qualified veterinarian and local regulations.

Rabies Cases in India and World Rabies Day

Rabies cases are a major cause of mortality in India, with most cases attributed to rabies from stray dogs and a lack of timely response to seek treatment in rural areas.

World Rabies Day is observed annually on 28 September to raise awareness about rabies prevention, vaccination, responsible pet ownership, and the importance of timely post-exposure care. Community vaccination drives for stray dogs and public awareness about immediate post-bite care are the best weapons for combating rabies in the country.

Is Rabies Curable?

Rabies is almost always fatal once clinical symptoms develop, but it is preventable when appropriate post-exposure prophylaxis is given promptly after a potentially risky exposure. Depending on the exposure, treatment may include wound washing, rabies vaccination, and rabies immunoglobulin.

This one should inform all actions taken after a bite or scratch: DO NOT WAIT, DO NOT GUESS THE RISK, SEEK MEDICAL ATTENTION.

Final Word

Prompt medical assessment after a potentially risky animal bite or scratch is essential because post-exposure treatment is most effective when started before symptoms develop. MGMCH's 24×7 Emergency Medicine Department provides emergency assessment and treatment, including care for dog bites.

If you or a loved one has been bitten or scratched by an animal, don't wait - reach out to Mahatma Gandhi Medical College & Hospital for immediate assessment and care.