Health Research: Nanoparticles used to prevent inflammatory acne ♦ Fecal contamination affects sand more than water

Southeastern U.S. rural landscapes pose potential risk for salmonella infection Researchers from the University of Georgia have determined that various freshwater sources in Georgia, such as rivers and lakes, could feature levels of salmonella that pose a risk to humans. Salmonella infections are one of the top causes of gastrointestinal disease in the US, and while regulatory agencies have made progress in reducing foodborne transmission of the pathogen, other infection sources, including exposure to water, have not been as thoroughly examined.

Defective telomeres are now being linked to dozens of diseases, including many types of cancer Studying telomeres, the structures that protect the ends of chromosomes, has become a key issue in biology. In recent years, not only has their relation to ageing been confirmed; defective telomeres seem to be linked to more and more illnesses, including many types of cancer.

Nanoparticles used to prevent inflammatory acne through slow-released nitric oxide Dermatologists have found that the release of nitric oxide over time may be a new way to treat and prevent acne through nanotechnology

A portable 'paper machine' can diagnose disease for less than $2 In the US and other industrialized nations, testing for infectious diseases and cancer often requires expensive equipment and highly trained specialists. In countries where resources are limited, performing the same diagnostics is far more challenging. To address this disparity, scientists are developing a portable, low-cost 'paper machine' for point-of-care detection of infectious diseases, genetic conditions and cancer.

Attention beachgoers: Fecal contamination affects sand more than water 'No swimming' signs have already popped up this summer along coastlines where fecal bacteria have invaded otherwise inviting waters. Some vacationers ignore the signs while others resign themselves to tanning and playing on the beach. But should those avoiding the water be wary of the sand, too? New research investigates reasons why the answer could be 'yes.