If the H7N9 influenza virus now circulating in China evolves into a pandemic strain, the world is likely to have great difficulty providing adequate supplies of an effective vaccine in time to blunt its impact, according to a viewpoint article by three experts in the Journal of the American Medical Association (JAMA).
(CIDRAP News) – Influenza vaccine over the past few months has provided moderate protection overall but didn't have a significant impact on protecting seniors, a study from the US Centers for Disease Control and Prevention (CDC) revealed today.
(CIDRAP News) – An early assessment of this year's influenza vaccine shows it has provided a "moderate" level of protection at 62% so far this season, the Centers for Disease Control and Prevention (CDC) said today. That vaccine effectiveness (VE) level is about the same as in recent seasons and as found in a recent careful meta-analysis of randomized controlled trials.
(CIDRAP News) – The US Food and Drug Administration (FDA) yesterday approved the nation's first cell-based flu vaccine, a product from Novartis that uses technology that could help vaccinate more Americans in a pandemic but still has many of the same limitations of older egg-based flu vaccines.
(CIDRAP News) – A study published this week adds another to a short list of recent investigations suggesting that standard influenza vaccines yield only modest reductions in the risk of hospitalization or death in elderly people.
(CIDRAP News) A new report says that a cell culture derived influenza vaccine and a conventional egg-based vaccine both proved effective in a large international clinical trial, offering support for those who contend that cell-based vaccines should become an important part of flu vaccine supplies in coming years.