1.   The disease appeared to have invaded her entire body.

2.   For instance, tuberculosis, once a dangerous killer, was cured.

3.   Now the disease is appearing again.

4.   For others, the disease may not appear for decades, if ever.

5.   For others, the disease appears for no reason.

6.   He said he reached out to the Americans when he discovered how differently the disease appeared in sub-Saharan Africa as compared with the United States and Europe.

7.   If the disease does appear, it can be controlled by diligently pruning out branches with blight.

8.   Most doctors overlooked a basic fact of biology, that a new infectious disease can appear at any time.

9.   Periodically, the disease appears in a highly virulent form that kills millions of people, worldwide.

10.   Prion diseases appear to be a category of infectious illness distinct from those caused by more common contagious organisms such as viruses or bacteria.