Dog Bite in India: Wound Washing, Rabies Vaccine and Immunoglobulin Explained
Why the first fifteen minutes at a tap matter more than anything else
Rabies virus travels along nerve fibres, not through the bloodstream. That is why early local treatment can interrupt transmission before the virus reaches the central nervous system. Wash the wound immediately with soap and running water for at least fifteen minutes. Soap disrupts the viral envelope. Running water flushes virus particles out of the wound rather than letting them pool. Do not pack the wound, do not apply turmeric or chilli powder, and do not close it with a bandage or cloth right away. After washing, apply a povidone-iodine solution or, if that is not available, any alcohol-based antiseptic. The World Health Organization includes thorough wound washing in its core post-exposure guidance precisely because it demonstrably reduces viral load at the entry point.
The three categories of exposure and why they determine what happens next
Not every dog contact carries the same risk. The WHO classifies exposures into three categories. Category I is touching or feeding an animal, or licks on intact skin, no post-exposure treatment is needed. Category II is nibbling of uncovered skin, minor scratches, or abrasions without bleeding, this requires wound washing and a vaccine course. Category III is single or multiple transdermal bites or scratches, contamination of mucous membranes or broken skin with saliva, or any bat contact, this requires wound washing, the full vaccine course, and rabies immunoglobulin. In India, stray dog bites almost always qualify as Category II or Category III. When in doubt, treat as Category III. The cost of over-treating is a few extra injections. The cost of under-treating is irreversible.
The anti-rabies vaccine course: schedule, sites and what to expect
India's National Centre for Disease Control recommends the Essen regimen for intramuscular vaccination: doses on days 0, 3, 7, 14, and 28. Day 0 is the day you first present at a hospital or anti-rabies clinic, not the day of the bite. Government hospitals across India provide the vaccine free of charge under the National Rabies Control Programme. The vaccine is given into the deltoid muscle in adults and the anterolateral thigh in young children, never into the gluteal region, where absorption is unreliable. The intradermal regimen, which uses smaller doses at two sites simultaneously, is also approved in India and is widely used at government centres to stretch supply; it is equally effective when administered correctly. Side effects are mostly local: soreness, mild swelling at the injection site, occasionally a low-grade fever. The vaccine does not contain live virus and cannot cause rabies.
Rabies immunoglobulin: what it does and why it cannot be skipped in Category III bites
The vaccine takes several days to generate an antibody response. Rabies immunoglobulin, or RIG, provides passive immunity immediately, antibodies that are present in the wound from the first day while the vaccine is still building the body's own response. For all Category III exposures, RIG must be given on day 0, alongside the first vaccine dose, and ideally infiltrated directly into and around the wound. If the anatomical site makes full infiltration impossible, remaining RIG is given intramuscularly at a site distant from the vaccine. Human rabies immunoglobulin, or HRIG, is dosed at 20 IU per kilogram of body weight. Equine rabies immunoglobulin, or ERIG, is dosed at 40 IU per kilogram. Both are effective; ERIG is more widely available in India and significantly cheaper. A skin sensitivity test is required before ERIG administration. If RIG was not given on day 0, it can still be administered up to day 7 of the vaccine course, after that, the vaccine-generated antibodies have begun to appear and RIG is no longer indicated. Missing RIG in a Category III bite is not a minor omission; it leaves the patient unprotected during the most critical early window.
Where to go, what to tell the doctor, and what to watch for in the animal
Any government district hospital, medical college hospital, or designated anti-rabies clinic will administer the protocol. In most states, the vaccine and RIG are available at no cost at government facilities. Bring whatever information you have about the animal: owned or stray, vaccinated or not, provoked or unprovoked bite, and the animal's current condition if known. If the dog is alive and can be observed, a ten-day observation period is standard, a dog that bit you and remains healthy and alive ten days later was not infectious with rabies at the time of the bite. This does not mean you wait ten days before starting treatment. Start treatment immediately and observe the animal in parallel. If the animal dies, is killed, or cannot be found, complete the full protocol without interruption. Tell the doctor the exact location and depth of the wound, the number of bites, and whether the wound bled. These details determine the category and whether RIG is infiltrated locally or given intramuscularly.