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: No recombinations were found among the Atm , Npat , Acat1 , and D9Mit6 loci , and these loci were mapped 2 .
### Output Text:
No recombinations were found among the Atm , Npat , Acat1 , and D9Mit6 loci , and these loci were mapped 2 . 