BUSINESS WATCH

摘要

"We were fighting the 2009 H1N1 flu with vaccine technology from the 1950s," said Kathleen Sebelius, secretary of the US Department of Health and Human Services (HHS), in December 2009. Her view highlights frustrations with the slow process of making flu vaccines in chicken eggs.rnIncreased investment in vaccine research and development has spurred competition to replace the technique. Prospective candidates include growing flu vaccines in cultures of mammalian, insect, plant, bacterial or fungal cells.