Pooping into a petri dish is becoming standard practice as part of some college biology courses.
July 25, 2001|
Mycobacterium tuberculosis (MTB) infection induces a strong immune response, but by an as yet unknown mechanism, can persist within macrophages. In July Journal of Immunology Erika Noss and colleagues from Case Western Reserve University, Cleveland, Ohio show that a 19-kDa lipoprotein produced by MTB, inhibits antigen processing by macrophages and prevents recognition by T cells, thereby promoting chronic TB infection.Using electroelution techniques, Noss et al. extracted a specific component fr