3 Dead From New Strain of Bird Flu in China

Three people have now died from a new strain of bird flu, in China.

Six other people are ill with the H7N9 strain.

Until now, the strain was not thought to be transmittable to humans.

Authorities are worried about the strain as it does not kill birds, which are infected with it.

In fact, the birds infected with the strain have no symptoms at all.

H7N9 does not cause any harm until transmitted to humans, leaving officials trying to figure out a way to more easily detect it.