A study to evaluate non-fatal rabies in animals.

Area of Science:

• Veterinary Virology
• Zoonotic Diseases

Background:

• Rabies virus poses a significant public health threat.
• Understanding latent rabies virus infections is crucial for disease control.

Purpose of the Study:

• To investigate the prevalence of latent rabies virus in stray dogs, cats, and wild mammals.
• To determine the potential for nonfatal rabies infections in experimentally infected dogs and gerbils.

Main Methods:

• Examination of brains and salivary glands for rabies virus.
• Serological testing for rabies neutralizing antibodies.
• Experimental infection of dogs and gerbils with rabies virus.

Main Results:

• Naturally occurring nonfatal rabies infection was not found in stray dogs or cats.
• Latent rabies virus was recovered from wild gerbils without signs of disease, but this could not be experimentally reproduced.
• Rabies neutralizing antibodies developed in experimentally infected gerbils and in dogs, suggesting subclinical infections.

Conclusions:

• Nonfatal rabies infections are not evident in stray dogs or cats.
• Wild gerbils may harbor latent rabies virus, potentially during the incubation stage.
• Antibody development indicates subclinical or nonfatal rabies infections in surviving animals.