Why is rabies afraid of water?

Written by Xiong Hong Hai
Infectious Disease
Updated on March 17, 2025
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The reason why rabies fears water is because the rabies virus proliferates extensively in the brain, causing massive damage to brain tissues and cells. When it affects certain swallowing nerves and glossopharyngeal nerves, and causes extensive necrosis of brain and liver cells, these symptoms will appear. In addition to fearing water, there is also a fear of bright light, wind sounds, and noise. There will be evident fear-induced spasms, and eventually, it leads to death due to coma, and it is also prone to fever.

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

The incubation period of rabies is generally between one to three months, and it is rare for the disease to have incubation period longer than a year. Most cases usually fall within one to three months, according to the 2016 Rabies Prevention Guide. The longest recorded incubation period for rabies mentioned in the guide was six years, but such cases are extremely rare. Therefore, if a person is bitten by a dog and does not develop the disease within a year, it is generally considered that they were not infected with rabies at the time of the bite. Rabies is a fatal disease, with a 100% fatality rate upon infection, so prevention is crucial.

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Written by Xiong Hong Hai
Infectious Disease
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How is rabies transmitted?

Rabies is primarily contracted through bites from rabid dogs who have not been vaccinated against the disease. The rabies virus is present in the saliva of rabid dogs, cats, and there is also a risk of infection from bats if they carry the rabies virus and one is bitten by such a bat. Generally, rabies infection occurs through bites or scratches from animals carrying the rabies virus; there have been no cases of transmission from human to human. Rabies is a fatal disease, so if there is exposure, it is essential to take preventive measures, as there is no cure.

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Written by Xiong Hong Hai
Infectious Disease
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Can rabies be treated?

Rabies, once contracted, is incurable and leads to a 100% fatality rate. The reason rabies is incurable primarily stems from the rabies virus invading the human body and proliferating extensively within the brain's nerves. This leads to the destruction of brain tissues and the exhaustion of brain functions, making it impossible to treat. Therefore, prevention of rabies is crucial. If there is exposure to the rabies virus, it is necessary to administer the rabies vaccine, and in some cases, it may also be necessary to administer rabies immunoglobulin concurrently.

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Written by Xiong Hong Hai
Infectious Disease
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Rabies is transmitted through what?

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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Can rabies be transmitted?

Rabies is primarily caused by not getting vaccinated after being bitten by a rabid dog; this has been found in epidemiological studies in our country. In addition to bites from rabid dogs, there are also instances of people being bitten or scratched by cats, or bitten by bats, though these are relatively less common. So far, there have been no cases found of transmission from human to human. Rabies is a fatal disease; once infected, the mortality rate is 100%. Therefore, after being bitten by a dog, it is crucial to take preventive measures, treat the wound, and administer rabies vaccine and rabies immunoglobulin to generally prevent infection.