While we should all feel blessed to be surrounded by raccoons, dogs and bats that make our fauna diversity more interesting and exciting, these animals can also be a potential source of rabies, a completely preventable disease that can turn 100 percent fatal when not treated immediately.

Compared with third world countries, nations like the United States fare better when it comes to fighting rabies. That doesn't mean, however, it no longer exists. Early this year, some bats found in Irvine Regional Park in California tested positive for the rabies virus.

What Is Rabies?

Rabies is a viral disease that can be passed on between animals and between animals and humans through saliva. In very rare cases, rabies is spread through corneal transplant.

This means that humans can acquire the virus if they have been bitten or their open wounds or cracked skin is licked by a rabid animal. Humans can also develop rabies if they've been scratched by claws covered with saliva. It cannot be transmitted through other means like urine or blood, or by petting a rabid animal.

Once the rabies gets into the body, it attaches itself to the nerve cells, gradually destroying the nervous system. In its last performance, it attacks the brain, killing the person.

The incubation period is usually two to 12 weeks, but in some situations, clinical symptoms can occur less than two weeks up to at least a year, depending on how much virus the saliva had, the person's immunity and the location of the bite. The closer it is to the brain, the faster the symptoms can appear.

Treatment for Rabies

There have been reported cases of people who survived rabies, but almost always, people die after the signs and symptoms of rabies appear. These include:

- Prickling sensation or itching in the wound site

- Fever

- Feeling of discomfort

- Agitation or anxiety

- Disorientation and hallucination

- Headache

- Fatigue

- Changes in behavior

- Insomnia

- Difficulty drinking water

- Hypersensitivity to light

There's also no diagnostic test that can determine if the virus has already entered the body and how far along it is in destroying the brain.

However, people who have been bitten by an animal with rabies can be treated with a vaccine, which can be administered before or after the bite (the latter, called post-exposure prophylaxis or PEP, is more common). When the vaccination is performed, it can differ according to the degree of contact with suspected rabies:

These shots can be provided in hospitals, animal bite centers and vaccine clinics.

First aid can also be done prior to the vaccination. This includes washing the wound with running water and soap, then cleaning the area thoroughly. Exposure to rabies can also be prevented or significantly reduced by vaccinating pets annually.

Metro Centric | Flickr