According to a survey that was done by the American Pet Products Manufacturers Association in 2003-2004, three out of 10 households in the United States have pet hamsters.
The popularity of pet hamsters has actually been increasing in many countries, but all governments are not pleased with the development. In fact, in Vietnam, pet hamsters were banned in 2008 and anyone who violated the ban were fined 30 million Vietnamese dong -- roughly double the annual average income. Vietnamese authorities decided to ban the furry creatures because of the lack of controls in their importation, which raised concern over disease.
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