Rabies Epidemiology and Control in Ecuador

Area of Science:

• Epidemiology
• Veterinary Medicine
• Public Health

Background:

• Ecuador historically faced high rabies rates, particularly in 1996.
• A strong correlation exists between canine and human rabies cases.

Purpose of the Study:

• To describe the epidemiology of rabies in Ecuador.
• To evaluate rabies control efforts and vaccine efficacy.

Main Methods:

• Analysis of national census, mortality, and morbidity data.
• Phylogenetic analysis of the rabies virus N gene.
• Descriptive and inferential statistical methods.

Main Results:

• Rabies incidence declined sharply until 2012, correlating with vaccination campaigns.
• A 2011 sylvatic rabies outbreak in the Amazon region caused 11 human fatalities.
• Phylogenetic analysis revealed the vaccine strain aligns with urban rabies, distinct from bat-derived sylvatic strains.

Conclusions:

• Massive canine vaccination campaigns have successfully reduced urban rabies in Ecuador.
• Bat-derived rabies poses a distinct threat, necessitating targeted vaccine development.
• Ongoing research focuses on reverse genetics for region-specific rabies vaccines.