tag:blogger.com,1999:blog-4082643038671225434.post5118435192047781246..comments2023-10-07T01:34:01.774-07:00Comments on Case of the Day: Mad ScientistCraighttp://www.blogger.com/profile/17072102331564743101noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-4082643038671225434.post-56519271353552105582007-09-24T09:34:00.000-07:002007-09-24T09:34:00.000-07:00Mad ScientistThis stain is a Ziehl-Neelson or acid...Mad Scientist<BR/><BR/>This stain is a Ziehl-Neelson or acid-fast stain to identify acid-fast mycobacteria like Mycobacterium tuberculosis. The first reagent is carbol fuchsin, a mixture of phenol and basic fuchsin; the molecule shown is fuchsine. The slide is then washed in water and acid alcohol, then counterstained with methylene blue, the second chemical shown. The histology image shows acid-fast bacteria Mycobacterium leprae. The image shows cutaneous leprosy lesions. However, the mycobacterium cannot be cultured out in artificial media because it lacks genes for independent growth. It can be grown in armadillos or mouse foot pads as a diagnostic test. The disease is leprosy or Hansen’s disease.<BR/><BR/>Source: Wikipedia.<BR/><BR/>(NB: Sorry Alex, your comment got deleted by accident, but good job anyway :P)Craighttps://www.blogger.com/profile/17072102331564743101noreply@blogger.com