日期:2017-04-16 07:00:35 作者:伯奖桦 阅读:

Detecting which strain of flu someone has come down with may have got easier. Last week, the US Food and Drug Administration approved a test that can rapidly differentiate between ordinary influenza and bird flu in humans. In less than 4 hours, the test isolates, amplifies and identifies viral genetic material from a nasal swab. The test should help to spot any bird-flu pandemic in its early stages. Five years after the US Department of Energy challenged researchers to design fuel storage materials capable of holding 6 per cent of their weight in hydrogen,