Will the vaccine work after being bitten by a dog for a long time?
Rabies is called a preventable and untreatable disease in the medical community. The reason is that once rabies occur, it will be 100% dead.
More than 95% of rabies in my country are caused by rabies bites, while the rest are caused by bites and scratches from cats or other domestic and wild animals. Rabies virus is found in large quantities in rabies' saliva. Studies have found that when a person is bitten by rabies, the rabies virus first reproduces around the wound and invades the peripheral nerve tissue, and then attacks the central nervous system along the peripheral nerve at a rate of 8 to 22 mm every day. After the rabies virus enters the central nervous system, the clinical symptoms of rabies gradually appear. The incubation period of rabies is very different, the shortest is 10 days and half months, and the longest can reach several years. The length of the incubation period depends on the strength of the body's resistance, the number of viruses entering the human body and the virulence of the virus, as well as the bite location and the depth of the wound. The clinical manifestations of rabies are special, with itching, pain and paralysis around the wound at the beginning. As the condition develops, the patient begins to experience symptoms such as fatigue, loss of appetite, headache, insomnia, and nausea. Then it gradually becomes excited and has a sense of fear, and is allergic to the stimulation of sound, light and wind. It has a tension in the throat. It often stimulates restlessness and convulsions throughout the body due to stimulation such as loud sound and blowing wind. Hydrophobia is a special symptom of rabies. Patients experience throat or whole body spasms when they hear water or see water. In the later stage of the disease, patients gradually become quiet, fear disappears, spasms stop, muscles relax, jaw drops, saliva flows, reflexes disappear, pupils dilated, and often die due to respiratory and heart failure, and there is no cure.
The method to prevent rabies is to get rabies vaccination. There are two methods: (1) Prevention before exposure, that is, before healthy people are bitten or scratched by rabies. For people often in the field, rural postman who travel from village to village, tourists to epidemic areas, and people living in rabies-endemic areas, staff at canine breeding grounds are suitable for vaccination. If you receive 3 doses of rabies vaccine on 0 days, 7 days and 21 days, each dose of 1.0ml can gain more than one year of immunity. (2) Prevent vaccination after exposure. Any local wounds should be treated immediately regardless of age or gender, regardless of age or gender. After repeated rinsing with soapy water, then disinfected with iodine tincture several times. Then get the rabies vaccine in a timely and sufficient manner. Generally, rabies vaccine will be injected in 0 days (day 1, the same day), 3 days (day 4, and so on), 7 days, 14 days and 28 days, for a total of 5 shots. The dosage is the same for children. In addition to injecting rabies vaccine according to the above methods, severe bites (injections on the head, neck, fingers, and 3-biting sites, or those who lick the mucosa) should be doubly given in 0 days and 3 days, and at the same time, anti-rabies serum (40IU/Kg) or anti-rabies immunoglobulin (20IU/Kg) should be used to invade injection of local and intramuscular injection with anti-rabies serum (40IU/Kg) or anti-rabies immunoglobulin (20IU/Kg) to invade injection. Those who use anti-rabies serum or immunoglobulin in combination must complete the entire vaccine injection and then inject 2 to 3 doses of the vaccine. That is, one shot of rabies vaccine will be injected on the 15th, 75th, or 10th, 20th and 90th day of the whole process, and a total of 9 or 10 shots of rabies vaccine will be injected.
In the past, there was a view that after being bitten by a rabies, the rabies vaccine was not injected in time for various reasons. After several months, it was "okay" and there was no need to use rabies vaccine to prevent rabies. This is wrong. Because if it must be bitten by rabies, according to statistics, about 5% of rabies patients have an incubation period of more than 12 months. Therefore, the World Health Organization recommends that patients who are bitten by rabies for several months should undergo the above treatment and immunization procedures.
