There are a large number of viruses and bacteria around us. Once they enter the human body through the respiratory system, exposed blood or skin, and the immune system ignores it, fails to respond or slows down, the virus group will grow and launch attacks, and people will experience various diseases. Inability to treat it in time may be life-threatening.
There are many types of viruses, and the lethality impacts vary. If you apply the doctor level division, several commonly heard viruses are: influenza virus is a "health school student", the new coronavirus is a "resident doctor", the hepatitis B virus is a "attendant doctor", the HIV is a "deputy chief physician", and the highest-level "chief physician" is rabies virus . The eighth edition of "Infectious Diseases" in my country clearly states that once the rabies virus occurs, the mortality rate is 100%.
Many people understand that rabies is "unrescue". The international definition of the mortality rate of rabies is 99.99%, not 100%. In fact, 99.99% is an extremely high probability, which is about 100%, but it still means that there are survivors. So how do survivors survive? Let’s start with rabies virus.
There are many folk dogs in my country. There have been records of rabies since ancient times, but they are mostly caused by wild dogs , wild cats, wolves, etc. It was called "sagging dog disease" and " mad dog disease " in ancient times. Eastern Jin Ge Hong's " elbow reserve emergency prescription " believes that using mad dog brain to apply wounds can fight poison with poison. Tang "Qianjin Yaofang" has a detailed description of the treatment method. Due to the huge number of cats and dogs, there have always been many problems of hurting people. my country currently ranks second in the world in the number of rabies cases.
Rabies is a strong infectious disease caused by the invasion of the human body by the rabies virus. The virus comes from dogs, cats, wolves, bats, foxes, and other animals. The most prominent feature of the disease is water fear.
After the outbreak of rabies virus, it is generally divided into three stages: prodromal stage, about 2-4 days , fever, nausea, general discomfort, and sensitive to external stimulation; excitation stage, about 1-3 days , symptoms of neurological disorder and signs of failure appear, and the patient is a "source of infection" at this moment; end stage, usually no more than 1 day , and the patient is coma, paralyzed, and exhausted.
At present, it is injured by unknown animals. The most commonly used method is to inject rabies vaccine to prevent it. Those who have not been vaccinated with rabies vaccine have a relatively high risk of infection. Why is rabies virus so powerful? Because there are three special skills:
1. Rabies virus is neurophilic . The target of attack is nerve cells all over the body. It enters the body and does not penetrate into the blood and does not participate in the blood circulation. Instead, it sets a shortcut and takes the "neuron cell transmission". First, it reaches the brain center through the nerve cells, captures the brain and branches, and then uses the well-connected neural pathway to invade the whole body, forges brain instructions and make important organs "don't do it", causing bad consequences.
2. Rabies virus will avoid the immune system . While invading the nerves, it will simultaneously secrete an interferon that inhibits the effect of immune cells . It is like creating a "signal interference source" for the immune system. The immune cells cannot receive any signals from the immune system about eliminating rabies virus, so they remain silent. When the virus secretes enough interferon, it will also cause the immune system to "crash", and all kinds of bacteria will take advantage of the situation.
3. Rabies virus is good at killing with one blow. It does not enter the blood, so the virus cannot be found in the serum, but the invasion has been in full swing. It is estimated that the virus penetrates from the wound through nerve cells to the brain at a speed of 3mm per hour, which means that the closer it is to the brain, the faster the disease occurs, and some patients may take several months to get sick. Before the disease occurs, the virus does nothing except moving as planned. Once the brain and branches are occupied, a fatal blow will be launched immediately.
Therefore, the rabies virus can achieve its ultimate goal around path selection, immune evasion, pretending to be harmless and other means is also its horror. Therefore, if you are injured by an animal of unknown origin and have not been injected with rabies vaccine before, it is best to deal with and treat accordingly as soon as possible.
Who escaped the rabies virus by chance?
According to existing medical records, in 2004, a middle school student in the United States was bitten by a bat and developed rabies symptoms about 37 days later. The local hospital tailored a method similar to to "induce coma" . made the brain "fake death", the nerves temporarily stopped and transmitted signals, blocking the route of rabies virus. When the immune system had enough time to react, identified the rabies virus and launched a counter- response, the patient gradually came back to life, and the treatment lasted for about 40 days.
However, this therapy to induce coma has not been recognized by the medical community so far, and the patients also have sequelae. According to statistics, about 10-15 patients have been successfully treated. These people became lucky people who escaped the clutches of rabies virus.
But some industry believe that the type of rabies virus dealt with by "induction therapy" is a subtype of 15 types. Strictly speaking, it is not the "true owner" of rabies virus. The people who can escape from the rabies virus after dog bites are still 0.
Therefore, once there is a risk of rabies virus infection, we must quickly carry out effective protection and treatment. Don’t be lucky, because we are facing at least 99.99% of extremely high threats.
