Rabies is an often deadly viral infection that is mainly spread by infected animals.
Rabies is spread by infected saliva that enters the body through a bite or broken skin. The virus travels from the wound to the brain, where it causes swelling, or inflammation. This inflammation leads to symptoms of the disease. Most rabies deaths occur in children.
In the past, human cases in the United States usually resulted from a dog bite, but recently, more cases of human rabies have been linked to bats and raccoons. Although dog bites are a common cause of rabies in developing countries, there have been no reports of rabies caused by dog bites in the United States for a number of years due to widespread animal vaccination.
Other wild animals that can spread the rabies virus include:
Very rarely, rabies has been transmitted without an actual bite. This is believed to have been caused by infected saliva that has gotten into the air.
The United Kingdom had once completely eradicated rabies, but recently, rabies-infected bats have been found in Scotland.
The actual time between infection and when you get sick (called the "incubation period") ranges from 10 days - 7 years. The average incubation period is 3 - 7 weeks.
Symptoms may include:
If an animal bites you, try to gather as much information about the animal as possible. Call yourĂ‚Â local animal control authorities to safely capture the animal. If rabies is suspected, the animal will be watched for signs of rabies.
A special test called immunofluorescence is used to look atĂ‚Â the brain tissue afterĂ‚Â an animal is dead.Ă‚Â This test can reveal whether or notĂ‚Â the animal had rabies.
The same test can be used to check for rabies in humans, using a piece of skin from the neck. Doctors may also look for the rabies virus inĂ‚Â your saliva or spinal fluid.
Clean the wound well with soap and water, and seek professional medical help. You'll need a doctor to thoroughly clean the wound and remove any foreign objects. Most of the time, stitches should not be used for animal bite wounds.
If there is any risk of rabies, you will be given a series of a preventive vaccine. This is generally given in 5 doses over 28 days.
Most patients also receive a treatment called human rabies immunoglobulin (HRIG). This is given the day the bite occurred.
There is no known effective treatment for people with symptoms of a rabies infection.
It's possible to prevent rabies if immunization is given within 2 days of the bite. To date, no one in the United States has developed rabies when given the vaccine promptly and appropriately.
Once the symptoms appear, few people survive the disease. Death from respiratory failure usually occurs within 7 days after symptoms start.
Untreated, rabies can lead to coma and death.
In rare cases, some people may have an allergic reaction to the rabies vaccine.
Go to the emergency room or call the local emergency number (such as 911) if an animal bites you.
To help prevent rabies: