Rickettsia rickettsii & other Rickettsia species – causes, symptoms, diagnosis, treatment, pathology

The Rickettsiae are a genus of Gram-negative coccobacilli, which includes two major groups of bacteria. First, there’s the spotted-fever group, the main species in this group is Rickettsia rickettsii, which causes a disease called Rocky Mountain spotted fever. Second, there’s the typhus group of Rickettsia species – which cause different forms of typhus. This group…

Many May Have Undiagnosed Diabetes

High blood sugar levels due to untreated diabetes can damage the heart, eyes, kidneys, nerves and other parts of the body over time. Now, a new study finds that many patients may not even know they have the condition. I’m Miranda Savioli with your latest health news. Researchers looked at electronic patient records in the…

Type II hypersensitivity (cytotoxic hypersensitivity) – causes, symptoms, & pathology

Having a hypersensitivity means that the immune system is reacting to something in a way that damages the body rather than protecting it. There are four different types of hypersensitivities, and the second type or type II hypersensitivity is sometimes called cytotoxic hypersensitivity because a lot of disorders caused by this hypersensitivity involve antibody mediated…