Toy was due to travel to Thailand with its owner, but is now living in luxury thanks to kind staff at Yekaterinburg airport.
Oksana and Alexander Urusov were told they needed more papers to fly with dog Tori, so they dumped her outside the terminal.
Foreign visitors transiting on Russian airlines will be able to stay for 72 hours without documents as part of move to help boost tourism and economy.
The pair returned from Nigeria, one of the countries stricken with the deadly virus.
Transit passengers from 20 countries will be allowed 72 hours in Russia without the hassle of obtaining a visa.