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Rabies Disease: Transmission, Symptoms, Treatment, and Prevention

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Rabies is a viral illness that may be prevented by staying away from animals. The rabies virus attacks the central nervous systems of animals, resulting in brain illness and death. The great majority of rabies cases reported to the Centers for Disease Control and Prevention (CDC) each year involve wild animals such as bats, raccoons, skunks, and foxes; however, rabies may affect any mammal.

Symptoms of Rabies:

Rabies symptoms in people may emerge as early as the first week after infection. Significant weakness, fever, and headaches are early rabies symptoms. Similar to the common flu or other viral diseases, these symptoms would not arouse concerns about rabies without a history of suspected encounters with a rabid animal.

As a consequence, the sickness might present itself in one of two ways:

  • In around 20% of cases of paralytic rabies, the patient’s muscles become paralyzed over time (usually starting at the site of the bite). This is a rare mutation that causes death and unconsciousness.
  • The patient has classic rabies symptoms such as anxiety and confusion (the patient is frequently overactive); encephalitis, which causes hallucinations, confusion, and coma; hypersalivation; hydrophobia (fear of water); aerophobia (fear of fresh air); and difficulty swallowing in about 80% of cases of furious rabies symptoms.

How is Rabies Virus Transmitted?

The rabies virus is spread directly with an infected animal’s saliva or brain/nervous system tissue (such as injured skin or mucous membranes in the eyes, nose, or mouth).

The bite of a rabid animal often transmits rabies. Non-bite exposures, such as scratches, abrasions, or open wounds exposed to rabid animal saliva or other potentially infectious substances, may cause human rabies. Touching a rabid animal or coming into contact with a rabid animal’s blood, urine, or feces does not provide a risk of infection and is not considered a rabies exposure of concern.

There are a few ways to spread the disease other than bites and scratches. Although breathing rabies virus aerosol represents a possible non-bite route of infection, most individuals, except laboratory workers, will not come into contact with rabies virus aerosol. Although rabies may be transmitted via corneal and solid organ transplants, it is uncommon. Since 2008, just two reliable organ donors with rabies have been identified in the United States. To verify the acceptability of each donation, several organ procurement organizations have added a rabies exposure screening question in their processes.

Rabies Diagnosis:

  • Rabies is diagnosed in animals by looking for the rabies virus in any damaged brain area. This necessitates the euthanasia of the rabid animal. Testing a suspect animal might help avoid unnecessary treatments and human testing (if the result is negative).
  • Rabies is diagnosed by testing people’s saliva, blood, spinal fluid, and skin samples. Multiple tests may be required. The tests depend on recognizing proteins on the rabies virus’s surface, detecting the virus’s genetic material, or demonstrating an antibody (immune) response to the virus.

Preventive Measures:

The majority of rabies prevention requires proper pet care and outside behavior. Vaccinated pets should be kept away from wild animals and the outdoors. Approaching wild animals should be avoided. Keep bats out of your house and avoid bat-infested locations (caves).

  • Each year, the CDC gets roughly 5,000 reports of rabies in animals, most of whom are from wildlife.
  • Keep an eye out for stray animals when traveling.
  • If you’re going to be in a country where rabies is prevalent for a lengthy period, you should consider immunizing rabies.

Facts & Trivia:

  • Rabies is a viral infection nearly always spread by a bite from an infected animal.
  • Anyone who has been bitten in an area where rabies is prevalent should get treatment immediately.
  • Therapy must begin before the symptoms start to show.

Conclusion:

The rabies virus loses its contagious properties when it dries and is exposed to sunlight. Various environmental conditions determine how soon a virus becomes dormant, but virus-infected material that is dry is generally regarded as non-infectious. Rabies is a dangerous virus that causes brain inflammation in humans and other animals. Rabies may be transmitted from infected animals to humans via bites and scratches.


Last Updated : 01 Sep, 2022
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