Two cases of humans infected with it have been confirmed in that region.

Also, no one was able to say for certain how this virus came to infect humans in the first place.

The first six listed here are the most common species that infect humans.

The risk is generally low to most people, because the viruses do not usually infect humans.

Did the virus jump from another species to infect humans?

Several species, most of which are opportunistic, also infect humans.

Of the 1,415 microbes that are known to infect humans, 61 percent come from animals.

For nearly 40 years, only two polyomaviruses were known to infect humans.

They can also infect humans, turning them into vampires, and must sleep on a bed of earth.

No known cases of the virus have infected humans.