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WHO picks new B strain for 2009-10 flu vaccine

first_imgFeb 13, 2009 (CIDRAP News) – Because of a suboptimal match between this year’s flu vaccine and circulating influenza B viruses, the World Health Organization (WHO) has recommended changing one of the three strains used in flu vaccines for the Northern Hemisphere next fall and winter.The WHO’s choices for the two influenza A strains remain the same as last year, according to new reports published on the WHO Web site this week. The agency recommended keeping the influenza A/H1N1 and A/H3N2 variants used in this year’s vaccine, both of which are labeled Brisbane strains.The influenza B component of this year’s flu vaccine was from the Yamagata lineage, but the proportion of strains from the Victoria lineage continues to increase and has become predominant in many countries, the WHO said. The US Centers for Disease Control and Prevention’s (CDC’s) most recent flu surveillance report, for the week of Feb 1 through 7, said that of 78 influenza B viruses that were characterized, 55 belonged to the Victoria lineage.Health officials in the United States have discussed including both lineages in the seasonal vaccine to address the unpredictable prevalence of the influenza B strains, especially since a vaccine against one lineage offers little protection against the other.Last year the WHO recommended a total vaccine makeover for the 2008-09 flu season because of a mismatch to circulating strains the previous season.Each February the WHO assesses the flu virus strains in circulation before picking the strains for the next Northern Hemisphere flu season. It takes about 6 months for vaccine manufacturers to grow the viruses in chicken eggs and formulate them into trivalent (three-strain) vaccines. Changing one or two strains is not unusual.The WHO recommends the following for next season’s vaccine:For the H1N1 component, a strain similar to A/Brisbane/59/2007For the H3N2 component, a strain similar to A/Brisbane/10/2007For the B component, a strain similar to B/Brisbane/60/2008-like virus, replacing B/Florida/4/2006The Brisbane strains of H1N1 and H3N2 will be used in this year’s vaccine for the Southern Hemisphere, where the flu season runs from May through October, according to the WHO. However, the influenza B component of the Southern Hemisphere’s vaccine is similar to B/Florida/4/2006.In its full report on the strain selection, the WHO said that between September 2008 and January 2009, Africa, the Americas, Asia, Europe, and Oceania all reported influenza activity. Though levels were lower than in the same period last year, activity was higher in some European countries, including the United Kingdom, Norway, Portugal, Spain, Poland, and the Netherlands.In the Northern Hemisphere, countries such as Japan, Tunisia, and European countries reported regional outbreaks of H3N2 in December and January. In the United States, H1N1 viruses predominated, while in Canada, B viruses were more common.H1N1 strains that show resistance to the antiviral drug oseltamivir (Tamiflu), one of two neuraminidase inhibitors recommended for treatment, predominated in most regions of the world. No such resistance was seen in H3N2 or B viruses, and there were no reports of viruses resistant to zanamivir (Relenza).See also:CDC flu surveillance reportJan 16 CIDRAP News story “Experts consider 4-strain flu vaccine to fight B viruses”last_img read more

Pele Back in Brazil hospital for routine checks

first_imgBrazilian football legend Pele was back in a hospital in Sao Paulo, days after he underwent surgery for kidney stones.”Patient Edson Arantes do Nascimento (Pele) has been admitted for evaluation and remains in stable condition,” said a statement from Albert Einstein Hospital.Local media reported that Pele was being treated for a urinary infection.Pele, 74, underwent surgery November 13 for kidney stones.Close associate and aide Jose Fornos Rodrigues told AFP Pele would stay overnight at Einstein Hospital, but did not comment on any diagnosis or details.Pele, born in a humble home in the city of Tres Coracoes, became the man many call the greatest footballer in history.last_img read more

Sumner Newscow weekly poll: The Kansas City Royals wildcard game question

first_img Loading …Follow us on Twitter. So did you stay up for the Royals dramatic 12-inning wildcard win? Yes, I stayed to the bitter end. I gave up after the Royals fell behind in the sixth inning No, I didn’t watch any of the game. View Results Close Forgot password? Please put in your email: Send me my password! Close message Login This blog post All blog posts Subscribe to this blog post’s comments through… RSS Feed Subscribe via email Subscribe Subscribe to this blog’s comments through… RSS Feed Subscribe via email Subscribe Follow the discussion Comments (10) Logging you in… Close Login to IntenseDebate Or create an account Username or Email: Password: Forgot login? Cancel Login Close WordPress.com Username or Email: Password: Lost your password? Cancel Login Dashboard | Edit profile | Logout Logged in as Admin Options Disable comments for this page Save Settings Sort by: Date Rating Last Activity Loading comments… You are about to flag this comment as being inappropriate. Please explain why you are flagging this comment in the text box below and submit your report. The blog admin will be notified. Thank you for your input. -1 Vote up Vote down SuCo Pride · 306 weeks ago I’m not sure which part of the ending you found to be bitter. I doubt that there are many A’s fans in the NewsCow readership. Report Reply 8 replies · active 306 weeks ago -1 Vote up Vote down CueballSumnernewscow 94p · 306 weeks ago It’s a saying. I’m not sure bitter. Maybe the best Major League baseball game I have ever seen. Report Reply +2 Vote up Vote down Ted Logan · 306 weeks ago I seem to remember you saying that about the Auburn-Alabama game (substituting college football for MLB). You didn’t watch a lot of sports growing up, did you? Report Reply 0 Vote up Vote down CueballSumnernewscow 94p · 306 weeks ago Or it could be because this is my @#$!ing site and I can make hyperbolic statements at will any time I so choose. Report Reply +4 Vote up Vote down Ted Logan · 306 weeks ago I assumed it was the latter. Report Reply +2 Vote up Vote down Kirk Gibson · 306 weeks ago I disagree. Report Reply +2 Vote up Vote down Joe Carter · 306 weeks ago I disagree. Report Reply +2 Vote up Vote down Bucky F. Dent · 306 weeks ago I disagree Report Reply +2 Vote up Vote down Carlton Fisk · 306 weeks ago I disagree Report Reply -1 Vote up Vote down Butter Cup · 306 weeks ago Great game, if you missed it, you sleep way to much and need to learn to experience life. Report Reply 0 replies · active 306 weeks ago Post a new comment Enter text right here! Comment as a Guest, or login: Login to IntenseDebate Login to WordPress.com Login to Twitter Go back Tweet this comment Connected as (Logout) Email (optional) Not displayed publicly. Name Email Website (optional) Displayed next to your comments. Not displayed publicly. If you have a website, link to it here. Posting anonymously. Tweet this comment Submit Comment Subscribe to None Replies All new comments Comments by IntenseDebate Enter text right here! Reply as a Guest, or login: Login to IntenseDebate Login to WordPress.com Login to Twitter Go back Tweet this comment Connected as (Logout) Email (optional) Not displayed publicly. Name Email Website (optional) Displayed next to your comments. Not displayed publicly. If you have a website, link to it here. Posting anonymously. Tweet this comment Cancel Submit Comment Subscribe to None Replies All new commentslast_img read more