日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

WORLD> Global General
WHO sees H1N1 flu vaccination from next month
(Agencies)
Updated: 2009-08-06 22:51

GENEVA/LONDON: The first vaccines to combat A(H1N1) flu should be approved and ready for use in some countries from September, the World Health Organization said on Thursday.

WHO sees H1N1 flu vaccination from next month

A nurse displays an H1N1 influenza kit which contains protective face masks and Tamiflu in the dedicated hospital room for arriving patients who are suspected to be ill with the flu at the CHRU Hospital in Lille, northern France, August 6 2009. [Agencies] WHO sees H1N1 flu vaccination from next month

Marie-Paule Kieny, WHO director of the Initiative for Vaccine Research, also said vaccine production yields were improving, following a disappointing start that triggered some worries about supplies.

One of the virus strains used by vaccine makers now seems to be yielding the same amount as seasonal vaccine, while early indications were that pandemic H1N1 yields might be only 30 percent of normal.

"I don't want to say too early that the question has been resolved but it really seems that we have found a way to go round this problem," Kieny told reporters. "We are on track in development."

First results from clinical trials are expected early next month and these tests will show whether one or two doses are needed to provide immunity - another big swing factor in determining how many people can be vaccinated.

Once initial clinical trial results are in, regulators will be able to approve the vaccines from next month and the first countries are expected to start mass vaccination programmes, Kieny added.

 Related readings:
WHO sees H1N1 flu vaccination from next month Flu Pandemic Outbreak

Related readings:
WHO sees H1N1 flu vaccination from next month Pregnant women at greater danger from H1N1 flu
WHO sees H1N1 flu vaccination from next month Vietnam has 1st H1N1 flu death: report
WHO sees H1N1 flu vaccination from next month South Africa reports first A(H1N1) flu death
WHO sees H1N1 flu vaccination from next month 7 children confirmed with A/H1N1 in Beijing

The H1N1 flu outbreak, declared a pandemic on June 11, has spread around the world and could eventually affect 2 billion people, according to WHO estimates.

Fears the strain could become resistant to the anti-viral drug Tamiflu have underscored the need to get vaccines to market quickly. The H1N1 vaccines would be given separately from regular seasonal flu shots.

Leading flu vaccine makers include Sanofi-Aventis, GlaxoSmithKline, Novartis, Baxter, CSL and Solvay.

WHO Director-General Margaret Chan has said the H1N1 virus is stable and there were no signs of it mixing with other more dangerous types of influenza such as the deadly H5N1 bird flu strain.

At present, patients with mild symptoms generally do not need any medicines to recover, and Chan has stressed hospital visits are not necessary unless those infected with flu have certain warning signs.

These include long-lasting high fever in adults and a lack of alertness in children. Pregnant women and people with health problems including diabetes are also vulnerable to more severe effects from the new flu strain.

FAST-TRACK APPROVAL 'SAFE'

The WHO said vaccines had to be available quickly and in large quantities to have the greatest impact and it insists that fast-track approval will not jeopardise safety.

Vaccines arrived too late in the 1957 and 1968 flu pandemics to be of much use, and flu vaccines had not been developed in the 1918 "Spanish flu" pandemic which killed an estimated 50 million people.

Some concerns have been raised because of serious side effects and 30 deaths seen during a US swine flu vaccination in 1976.

Kieny said vaccine production and purity levels had improved significantly since but safety issues could arise during a pandemic when a vaccine is administered on a mass scale, even if they did not show up in safety trials.

As a result, countries are being advised to conduct intensive monitoring as the vaccination campaign goes on.

主站蜘蛛池模板: 欧洲a老妇女黄大片 | 2022最新a精品视频在线观看 | 精品久久久久久久久久久 | 久草视 | 我要看欧美一级毛片 | 日本不卡一区在线观看 | 欧美综合国产精品久久丁香 | 特级全黄| 天天精品视频免费观看 | 99久久久久 | 男女一起www免费高清视频 | 天天摸天天爽视频69视频 | 久久精品久 | 夜夜春精品视频 | 午夜大片免费男女爽爽影院久久 | 天天摸天天操免费播放小视频 | 人人草人人干 | 青青热在线观看视频精品 | 中文字幕av一区二区三区 | 亚洲免费中文字幕 | 欧美一级做a爰片久毛片潮 日本久久视频 | 日韩av福利| 精品日韩欧美一区二区三区在线播放 | 夜夜撸.com | 色喜亚洲美女沟沟炮交国模 | 国产一起色一起爱 | 毛片a级毛片免费播放100 | 欧美日韩国产综合一区二区三区 | 仇爱电视剧泰剧在线观看免费播放 | 国产999精品久久久久久 | 天天干天天拍天天射 | 精品一区二区三区不卡 | 成人亚洲国产精品久久 | 婷婷丁香色综合图亚洲 | 国产欧美一区二区三区精品 | 精品一区精品二区 | 黄片毛片免费观看 | 欧美午夜一区 | 欧美日韩精品乱国产 | 久久九九久精品国产 | 久碰香蕉精品视频在线观看 |