31.   The bird virus that killed seven New Yorkers last year has now spread all over the Americas, say U.S. researchers.

32.   The chamber offers new possibilities, say researchers, by allowing patients to exercise without bearing too much weight too soon.

33.   The potential consequences of a leak leave little room for experimental error, say researchers writing in the current issue of the journal Science.

34.   There is no wrong answer to this one, say researchers at the University of Arkansas for Medical Sciences in Little Rock.

35.   These renegade macrophages may figure in AIDS, cancer, dementia and even heart disease, say researchers from SLIL Biomedical in Madison, Wis.

36.   Voice verification is already one of the most reliable biometrics, say government researchers at the National Security Agency, which monitors its use in numerous federal computer facilities.

37.   Unfortunately, say researchers, all the attention may not be good for the rare, one-ounce creature.

38.   AGEING women undergoing hormone replacement therapy may be preserving their memories as well as preventing bone loss, say researchers.

39.   And the economies of developing countries like China and India could be devastated because of the growing number of people with cardiovascular diseases, say researchers.

40.   But the other, Sauvignon blanc, is a surprise, say researchers from the University of California, Davis.