This study involving women with early-stage breast cancer showed an association between the presence of isolated tumor cells or micrometastases in sentinel or axillary lymph nodes and the 5-year rate of disease-free survival. Women with such findings in these lymph nodes who received systemic adjuvant therapy had an improved outcome.

Weight lifting has generally been discouraged for women with breast-cancer–related lymphedema because of concern that it might worsen the lymphedema. In this randomized trial involving breast-cancer survivors with lymphedema, women undergoing a 1-year weight-lifting program were no more likely than controls to have increased arm swelling, had greater improvement in the severity of lymphedema symptoms and strength, and had a lower incidence of confirmed exacerbations of lymphedema.

A novel swine-origin influenza virus infected a large number of persons in Mexico and has subsequently been disseminated around the globe. This report describes an atypical pattern of severe respiratory illness identified in Mexico during March and April 2009, with the predominance of severe illness in young persons.

This case series describes the first 18 patients hospitalized with infection with novel swine-origin influenza A (H1N1) virus (S-OIV) from March 24 through April 24, 2009, in Mexico City. More than half the patients were between 13 and 47 years of age, and most had been healthy previously. Respiratory distress requiring intubation and mechanical ventilation developed in 10 patients; 7 patients died. There were 22 secondary infections among health care workers, none of which required hospitalization.