Whether or not a microbe is successful at establishing an infection depends both on the microbe and the host. Scientists from Duke found that a single DNA change can allow Salmonella typhi, the bacteria that causes typhoid fever, to invade cells. That single genetic variation increased the amount of cholesterol on cell membranes that Salmonella and other bacteria use as a docking station to attach to a cell to invade it. They also found that common cholesterol-lowering drugs protected zebrafi...
The pathogen referred to as a "nightmare bacteria" is quietly adapting and spreading faster than anticipated.
For some, drinking raw milk is a way to get back to nature, improve family nutrition, and hedge against asthma and allergies. However, according to public health authorities, drinking raw or unpasteurized milk is a big mistake—even fatal. So what's the story?
Jostled in the airport, someone is coughing in line. The air looks empty but it is loaded with microbes that make their way into your body. You get sick. You give it to your family, and that's pretty much it. But what if you were so contagious that you spread it to your entire community and beyond?
A sometimes serious disease spread by fleas is making inroads in Texas, quietly doubling case numbers since 2008, and beginning to encroach on larger metropolitan areas.
