In 2011, a media article on the stray dog population by the US National Animal Interest Alliance said that there are 200 million stray dogs worldwide and that a "rabies epidemic" was causing a global public health issue. In 2013, the World Health Organization reports that dogs are responsible for the vast majority of human rabies deaths, contributing up to 99% of all rabies transmissions to humans. Rabies causes tens of thousands of deaths every year, mainly in Asia and Africa. More than 15 million people receive post-bite rabies vaccines to prevent the disease.
