In the sentence extracted from biomedical literature, identify all the disease entities. The required answer format is the same sentence with HTML <span> tags to mark up specific entities. 
### Entity Markup Guides:
Use <span class="disease"> to denote a disease.

### Input Text: Thus , WASP provides a novel link between CDC42Hs and the actin cytoskeleton , which suggests a molecular mechanism for many of the cellular abnormalities in WAS .
### Output Text:
Thus , WASP provides a novel link between CDC42Hs and the actin cytoskeleton , which suggests a molecular mechanism for many of the cellular abnormalities in <span class="disease">WAS</span> . 