The structure of a novel protein in the bacterium that is the most persistent pathogen in cystic fibrosis (CF) patients has been solved.

An update on the increased spread of Sudden Oak Death, a plant disease devastating many of California's coastal oak and tanoak trees, and information on what Californians can do to help reduce its spread will be presented during a news conference on plant diseases that are of importance to California's economy and agriculture. The news conference will be held Monday, July 30 at 11 a.m. PST at the Town and Country Resort and Convention Center in San Diego, Calif.

When a strand of DNA breaks in the body's cells, it normally does not take long until it has been repaired. Now researchers at the Swedish medical university Karolinska Institutet have discovered a new mechanism that helps to explain how the cell performs these repairs. The results are presented in Science.

China’s paper industry has built-up a massive recycling capacity that is shielding forests worldwide from destruction by supporting a strong international market for wastepaper as an alternative to pulpwood, according to a new report released today by Forest Trends, a leading international forestry organization.

Treatment of HIV patients must balance the need to suppress viral replication against the harmful side effects and significant cost to the patient of antiretroviral therapy. This tradeoff has led to the development of various drug-sparing HIV-1 treatment strategies, which often results in the emergence of resistant viruses and overall treatment failure. This has prompted an interest in induction–maintenance (IM) treatment strategies, in which brief intensive therapy is used to reduce host viral levels, which is then followed by a simplified and more easily tolerated maintenance regimen.