Rabies is transmitted through what?

Written by Xiong Hong Hai
Infectious Disease
Updated on January 09, 2025
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According to epidemiological surveys in our country, the majority of rabies cases are caused by bites from rabid dogs. Bites and scratches from cats, bats, and other animals are relatively less common, but they still occur occasionally. Dogs or cats exhibiting symptoms of the disease have a large amount of rabies virus in their saliva, which is highly contagious. Rabies is a fatal disease, and once infected, it is 100% fatal with no available treatment. Therefore, it is crucial to strengthen prevention measures, which can include rabies vaccinations and rabies immunoglobulin.

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Written by Xiong Hong Hai
Infectious Disease
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How long is the incubation period for rabies?

The incubation period for rabies is generally about one to three months, and it is rare to exceed one year. Therefore, if more than three months have passed since being bitten by a dog without showing symptoms, it is largely possible to rule out rabies. Rabies is a fatal disease, with a 100% death rate once infected, mainly because the infection occurs after being bitten by rabid dogs, cats, or bats and not receiving the rabies vaccine. Rabies can only be prevented, so if there is exposure to the rabies virus, it is necessary to get vaccinated against rabies.

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Infectious Disease
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Symptoms of rabies

Rabies is an extremely dangerous and fatal disease. Once infected, it leads to a 100% fatality rate. When rabies presents its more typical symptoms, particularly during the furious phase, it manifests significant neurological symptoms such as hallucinations, convulsive seizures, bizarre behavior, hyperactivity, and rigid neck muscles. Symptoms show as extreme fear, with a pronounced fear of water, light, and wind, and include uncontrollable spasms of the throat muscles making swallowing difficult. It progresses to opisthotonus and ultimately results in coma and death.

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How long does rabies usually take to manifest?

Rabies generally has a variable incubation period. The question actually refers to the incubation period of rabies. The duration of this period can vary widely; the shortest is about five days before onset of the disease, while the longest can reach up to eight years. The average incubation period is two to three months, with cases exceeding one year accounting for 2%-3% of instances. The length of the incubation period is related to factors such as the virulence of the virus, and the nerve distribution at the site of entry. The greater the amount of the virus, the stronger its virulence, and the richer the nerve supply at the site of entry, especially if it is closer to the central nervous system, the shorter the incubation period will be.

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Written by Xiong Hong Hai
Infectious Disease
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How long does rabies take to develop?

The incubation period for rabies generally ranges from one to three months, rarely exceeding one year, with the shortest onset at five days and the longest around six years. Actually, the duration of the incubation period is related to the location of the bite; the further from the head, the longer the incubation period. If the wound from the bite is superficial and contains fewer rabies viruses, then the incubation period will also be longer. Conversely, if there is a larger amount of rabies virus and the wound is deeper, the incubation period will be shorter. Rabies is a fatal disease, with a 100% mortality rate once infected.

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Written by Xiong Hong Hai
Infectious Disease
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Does rabies cause headaches and dizziness?

During the apparent symptomatic phase of rabies, symptoms like headache and dizziness may occur, although they are not the main symptoms. More typical symptoms of rabies include hydrophobia, fear of wind, photophobia, and difficulty drinking water. Exposure to bright lights and loud noises can cause whole-body spasms and pain. The disease can also cause facial muscle spasms, leading to distorted facial expressions. Subsequently, opisthotonus may occur, along with drooling, tearing, and tachycardia. Eventually, the patient may fall into a coma and die. Fever may also be present.