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: This localization makes Wasp a candidate for involvement in scurfy , a T cell - mediated fatal lymphoreticular disease of mice that has previously been proposed as a mouse homolog of Wiskott - Aldrich syndrome .
### Output Text:
This localization makes Wasp a candidate for involvement in scurfy , a T cell - mediated <span class="disease">fatal lymphoreticular disease</span> of mice that has previously been proposed as a mouse homolog of <span class="disease">Wiskott - Aldrich syndrome</span> . 