The real risk is an outbreak that spreads from urban areas to rural woods and forests.
Today, a problem at a single factory can swiftly lead to an outbreak that extends nationwide.
But an outbreak that affected many guests at a Hong Kong hotel seemed to call that theory into question somewhat.
(Ninety-four of those are the result of an outbreak that began at Disneyland in mid-December).
Some warned of an outbreak that would kill millions, becoming the AIDS crisis that Britain never had.
They were among the scores of people stricken in an outbreak that has also extended into Pennsylvania.
Both were victims of an outbreak that began after the gang obtained the password and login information of their network administrators.
In an outbreak that started last December, almost 17 million pounds of Cargill-brand turkey, ham and other ready-to-eat products was recalled.
She said people "are still dying horrible deaths in an outbreak that has already killed thousands" and urged the world not to be complacent.
Dr Victor Willoughby is the 11th of the country's 120 doctors to die from the virus, during an outbreak that has killed almost 7,000 people.
Its stock had already plummeted as a result of Nepalese peacekeepers introducing cholera to Haiti, causing an outbreak that has claimed more than 9,000 lives.
