Chlamydia, today´s most common cause of venereal disease, does the equivalent of hiding in the police station.Schistosomes of the mansoni type go a step further and essentially steal police uniforms. These parasites, a serious cause of liver disease in Asia, pick up blood-group antigens so that they may look to the immune system like our own normal blood cells.
Randolph M. Nesse, Why We Get Sick: The New Science of Darwinian Medicine
humor, medicine