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Rabies (Hydrophobia) : Causes and Treatments

July 11 / 2025

 

 

Rabies (Hydrophobia)

 

 

     Rabies, also known as hydrophobia, is caused by the rabies virus. It is a disease that can be transmitted from warm-blooded animals and mammals to humans, mainly through injuries caused by infected animals—such as bites, scratches, or even licks on open wounds.

 

Severity of Rabies

     Rabies can be transmitted through the saliva of infected animals via the mouth, nose, eyes, or open wounds. The most common carriers are dogs and cats, though it can also occur in other animals—both domestic (such as pigs, horses, cattle, and buffaloes) and wild animals (such as monkeys, gibbons, squirrels, and chipmunks).

     Once a human is infected and does not receive proper preventive treatment, symptoms typically appear within 15–60 days, although in some cases, symptoms may develop in less than 10 days or take as long as a year. Since there is currently no cure for rabies, prevention is of utmost importance.

 

 

 

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Symptoms of Rabies

Infected individuals may initially experience:

 

  • Headache
  • Low-grade fever
  • Sore throat
  • Muscle aches
  • Loss of appetite
  • Fatigue

 

 

 

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Early Signs

A typical early sign is itching at the site of the bite, which may have already healed. The itching may spread, and the patient may scratch until the skin bleeds. Additional symptoms include:

 

  • Difficulty swallowing due to muscle spasms in the throat and larynx
  • An urge to drink water but an inability to swallow, resulting in hydrophobia
  • Foaming at the mouth, frequent spitting
  • Anxiety, restlessness, irritability, rapid breathing, and hypersensitivity to stimuli such as wind or loud sounds
  • Muscle spasms and tremors in the arms and legs

 

 

 


In later stages, the patient may become paralyzed, lose consciousness, and eventually die within 2–7 days after symptoms appear.

 

 

How to Identify a Rabid Dog or Cat

In early stages, the animal may exhibit behavioral changes. Later symptoms include:

 

  • Restlessness, excitability, easy fright
  • Biting at the air or insects
  • Eating strange objects like wood, stones, dirt, or sand
  • Aggression toward anything in its path
  • Decreased appetite
  • Dilated pupils, hypersensitivity to light and sound

 

 

In the final stage, the animal may become paralyzed:

 

  • Abnormal barking or howling
  • Stiff back, drooping tail, hanging tongue, slack jaw, excessive drooling
  • Difficulty swallowing, rigid jaw, mouth stuck open
  • Shaking limbs and unstable walking

 

The Process of Paralysis

     The paralysis will progress throughout the body, and the animal usually collapses, seizes, and dies within 10 days after showing symptoms. However, some animals may display only mild symptoms or remain quiet and hidden in dark corners, refuse food, or appear to choke without being aggressive. They may bite only when provoked. Therefore, caution and medical attention are essential.

 

 

 

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Rabies Preventions

Prevention is the most important measure against rabies. The motto is: “If bitten by a dog: Wash the wound, apply medication, confine the dog, see a doctor, and complete the vaccination course.”

 

1. Vaccinate Pets

     Pet owners should ensure that animals, such as dogs and cats, are vaccinated against rabies at least once a year. According to the Rabies Control Act, the first vaccine dose should be administered when the animal is 2–5 months old, followed by a booster within 1–3 months.

 

2. Follow the “5 Don’ts” Rule

Reduce the risk of dog bites by adhering to the “5 Don’t”:

 

  • Do not tease animals or make them angry.
  • Do not step on tails, heads, limbs, or surprise them.
  • Do not separate fighting animals with your bare hands.
  • Do not touch food bowls or move food while animals are eating.
  • Do not interact with unfamiliar or stray animals.

 

3. Keep Children Away from Unvaccinated Pets

     Children should not play closely with pets that have not been vaccinated or whose vaccination status is unknown. Pets should be vaccinated as soon as possible. Full immunity typically develops about one month after proper vaccination. If preventing reproduction, consider sterilization or other birth control methods.

 

4. Manage Waste and Keep Surroundings Clean

     Dispose of garbage and food waste in sealed containers or by burying/incinerating them. This prevents stray animals from scavenging. Pet owners should be responsible and not allow pets to become a public nuisance.

 

5. Report Suspected Cases Promptly

     If a dog or animal is suspected of having rabies, report it immediately to the Livestock Department, local health officials, or municipality to initiate control measures. Also, identify and monitor anyone who may have been bitten or scratched by the animal to ensure they receive necessary vaccinations.

 

Treatment of Rabies

If bitten or scratched by a dog or mammal:

 

  • Immediately wash the wound thoroughly with soap and clean water multiple times
  • Dry the wound and apply iodine-based antiseptic (e.g., povidone-iodine) or other appropriate wound medication
  • Try to locate the dog owner to check the animal's vaccination history and monitor symptoms
  • Promptly visit a doctor or public health officer for rabies vaccination and immunoglobulin. If a vaccine course is prescribed, it must be completed on schedule and strictly followed.

 

Animals that have bitten should be quarantined for observation for at least 10 days, during which they should be fed and watered as normal but avoided in terms of contact. If the animal shows abnormal behavior, consult a veterinarian immediately. If it dies during observation, notify authorities to submit its head for rabies testing.

 

 

Source: Department of Disease Control, Ministry of Public Health

 

 

 


If someone is bitten, it is important to advise them to wash the wound, apply antiseptic, and seek medical attention at a health center or hospital immediately.