This post begins a series on how infection, and specifically hospital-associated infections, affect special patient populations. Our first series will be dedicated to those patients facing a cancer diagnosis. As with any serious disease, the many types of cancer put a great deal of stress on the body and can make a person more susceptible to infection. Unique to cancer, however, are the infection risks due to the disease's treatment. Today we will explore how cancer and infection intersect in this special population.

We are right in the middle of the flu season, when more and more tests come back positive for the influenza virus. Next to the common cold, there's probably no more familiar illness than the seasonal flu: If you don't get it, someone you know does. Despite this familiarity, there are some fascinating facts about the flu that most of us do not know. Learning about influenza reveals a global network of researchers whose daily work keeps this virus at bay.

There are 5,627 registered hospitals in the United States. Those facilities can be divided in a variety of categories depending on size, location, demographics, finances, and affiliation. Today's post will explore the various categories into which any given hospital can be assigned. Knowing these categories can help consumers better understand the context of the hospitals from which they have to choose.