Wild birds could spread H5N1 virus beyond Asia, reports say

first_imgJul 6, 2005 (CIDRAP News) – The recent outbreak of H5N1 avian influenza among wild waterfowl in western China could provide a launching pad to spread the disease throughout Asia and beyond, according to two reports published by leading science journals today.Thousands of birds have died in the past 2 months at Qinghai Lake, a wildlife refuge that is an important gathering site for many species of waterfowl. World Health Organization officials have described the outbreak as the first one to kill large numbers of migratory birds.Two teams of scientists who studied the outbreak report some early findings today in online editions of Nature and Science. Both see a danger that the disease, confined mainly to Southeast Asia and East Asia so far, could vastly expand its range.”There is a danger that it [the H5N1 virus] might be carried along the birds’ winter migration routes to densely populated areas in the south Asian subcontinent, a region that seems free of this virus, and spread along migratory flyways linked to Europe,” says a report by H. Chen and colleagues in Nature. “This would vastly expand the geographic distribution of H5N1.”In Science, a large team of Chinese authors under the leadership of George F. Gao of Beijing writes, “The occurrence of highly pathogenic H5N1 . . . infection in migratory waterfowl indicates that this virus has the potential to be a global threat: Lake Qinghaihu is a breeding center for migrant birds that congregate from Southeast Asia, Siberia, Australia, and New Zealand.”The Nature report says the illness was killing more than 100 birds daily at Qinghai Lake by early May. Ninety percent of the birds that died were bar-headed geese, and the rest were brown-headed gulls and great black-headed gulls.Chen and colleagues analyzed the genes of 97 H5N1 viruses isolated from all three species and concluded that they were “clearly distinguishable” from strains that have caused human cases in Thailand and Vietnam. “This indicates that the virus causing the outbreak at Qinghai Lake was a single introduction, most probably from poultry in southern China,” the report says.”Our findings indicate that H5N1 viruses are now being transmitted between migratory birds at the lake,” the article continues. “Although the outbreak could burn itself out, the large migratory bird population at Qinghai Lake makes this unlikely.” Bar-headed geese fly south from the refuge to Myanmar and India starting in September, the authors say.”Increased surveillance of poultry is called for because previous experience has shown that control measures become almost impossible once the virus is entrenched in poultry populations,” the report concludes.Gao’s team writes that the infection caused tremors, spasms, diarrhea, and brain and pancreatic damage in the migratory birds. The team analyzed four viral isolates from the birds and found that they were closely related, but not identical, to a strain found in a peregrine falcon in Hong Kong in 2004.The investigators tested the virulence of the virus from the birds by exposing eight chickens and eight mice to it. All the chickens died within 20 hours and all the mice died within 4 days. In a study last year, Chen and colleagues found that H5N1 viruses taken from ducks in China were less lethal to mice and chickens.Neither of the new reports mentions any testing to determine whether healthy birds at Qinghai Lake are silently carrying the virus. Wild waterfowl are known as the natural reservoir for all influenza A viruses (of which H5N1 is one) and commonly carry them without getting sick.David A. Halvorson, DVM, a veterinarian in avian health at the University of Minnesota in St. Paul, said the two new studies are not the first ones to report wild waterfowl getting sick as a result of H5N1 infection. “But before, they thought that one possibility was that the waterfowl were getting it from the poultry,” he told CIDRAP News. “And now this seems to be kind of isolated from poultry, so it looks like the waterfowl are having their own infection, and transmitting it among themselves.”The outbreak clearly signals a risk that the H5N1 virus could spread out of East Asia, Halvorson said. But he added, “The fact of the matter is, the potential for it to be transmitted via flyways has been here all along. The fact it’s killing these birds, does it mean there’s a greater chance of its being spread or less of a chance? If you have a highly pathogenic virus that’s not killing the geese, it seems to me it would be a higher risk of transmission.”Infectious disease expert Michael T. Osterholm, PhD, MPH, commented, “The key message [of the new reports] is that this has potential to spread throughout Asia and Europe.” He is director of the University of Minnesota Center for InfectiousDisease Research and Policy, publisher of this Web site.Osterholm cited the spread of West Nile virus in the United States over the past 6 years as a potential parallel to the current H5N1 situation. The virus spread among birds congregating in southern regions in winter and then traveled with them when they returned north and dispersed across the country in summer, he said.Chen H, Smith GJD, Zhang SY, et al. H5N1 virus outbreak in migratory waterfowl. Nature 2005 (published online Jul 6) [Full Text]Liu J, Xiao H, Lei F, et al. Highly pathogenic H5N1 influenza infection in migratory birds. Science 2005 (published online Jul 6) [Abstract]last_img read more

Dhawan, Pujara centuries make Sri Lanka suffer

first_imgSHIKAR Dhawan made his highest Test score with a rapid century and Cheteshwar Pujara also scored a magnificent hundred as India piled on the runs on a painful first day of the series for Sri Lanka.Dhawan was only brought into the squad after Murali Vijay was ruled out of the tour due to a wrist injury and the left-hander grasped his opportunity in style on day one in Galle.The destructive opener – playing his first Test this year – made a brilliant 190 off only 168 balls and the classy Pujara was still there on 144 when India closed on 399-3, Nuwan Pradeep taking all three wickets.Dhawan was dropped on 31 by Asela Gunaratne, who could miss the rest of the series after fracturing his thumb while attempting to cling on at second slip and went on to score a fifth Test hundred.The powerful Dhawan added insult to injury, scoring 126 runs in a punishing afternoon session for Sri Lanka, and the prolific Pujara cashed in on a flat pitch with another exquisite innings as the tourists made their second-highest score on day one of a Test.Abhinav Mukund got his chance at the top of the order in the absence of the un-well KL Rahul, but fell cheaply when he edged Pradeep (3-64) behind after Virat Kohli won the toss.Dhawan was given a lifeline when he was put down by Gunaratne, who was left in agony as his participation in this match at the very least came to a premature end.The aggressive Dhawan was in one-day mode, using his feet superbly and was unbeaten on 64 to take the top-ranked side on to 115-1 at lunch, with Pujara looking ominously untroubled.Dhawan cut loose after the interval, demonstrating the full range of strokes he has in his repertoire as the runs came all too easily, and Pujara was also in majestic touch.A sweep for four took Dhawan to three figures, almost two years after his previous Test century at the same venue, and Pujara continued to show great timing as he eased to 50.Sri Lanka’s stand-in captain Rangana Herath looked short of ideas with the free-scoring Dhawan in such imperious touch, but after hitting 31 boundaries in a stunning knock, the opener gave it away by driving Pradeep to Angelo Mathews at mid-off just before tea to end a stand of 253.Kohli was given out caught behind for only three, attempting to hook Pradeep following a successful review from Herath, but Pujara made Sri Lanka suffer and raised his bat to celebrate yet another hundred after finding a leg-side gap to pick up two.Pujara and Ajinkya Rahane (39 not out) added 113 for the fourth wicket by the time India – who handed a debut to Hardik Pandya – closed in a commanding position.(Omnisport)INDIA 1st inningsS. Dhawan c Mathews b Pradeep 190A. Mukund c Dickwella b Pradeep 12C. Pujara not out 144V. Kohli c Dickwella b Pradeep 3A. Rahane not out 39Extras: (lb-4, nb-3, w-4) 11Total: (for 3 wickets, 90 overs) 399Fall of wickets: 1-27, 2-280, 3-286.Bowling: Nuwan Pradeep 18-1-64-3 (nb-1), Lahiru Kumara 16-0-95-0 (nb-2, w-4), Dilruwan Perera 25-1-103-0, Rangana Herath 24-4-95-0, Danushka Gunathilaka 7-0-41-0.last_img read more

WHS Daily Bulletin: There will be boys basketball meeting for those not out for football

first_img 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 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 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. There are no comments posted yet. Be the first one! 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 comments Submitted to Sumner Newscow — Today’s Wellington High School bulletin for Monday, Sept. 12, 2016MondaySub-football (freshman/JV) at Wellington, 5 p.m.TuesdayTennis at Conway Springs, 3 p.m.JV tennis at Winfield, 3 p.m.Volleyball at Clearwater, 5 p.m.WednesdayThursdayVarsity tennis at Ark City, 3 p.m.J.V. tennis at Winfield, 3 p.m.Volleyball at Clearwater, 5 p.m.FridayWellington at Rose Hill, 7 p.m.SaturdayTennis at Kingman, 7 p.m.9th volleyball at Garden Plain, 9 p.m.Today’s lunch — Tony’s Pizza, Pepperoni Calzone, Salad.Tomorrow’s lunch — Chicken nuggets, beef and noodles, salad.Today’s News: *There will be a meeting for boys basketball players  not in fall sports  with coach Roitman in the health room tomorrow after school.*The nominations are in! The top four choices for our WHS Mascot are: Crest the Crusader, Cru, Duke, and Crusader Joe. Vote for your favorite on the district website or follow @WellingtonSTUCO on Twitter. The last day to cast your vote is tomorrow, so be sure to vote during passing period today!*Chad Cargill will be at WHS to present an informational and motivational workshop on how to improve your ACT test scores. It will be held on September 23 at WHS from 8:30-11:30. The cost for WHS students in only $10. You can sign-up  and pay in the counselors office.*If you have any drawing or painting projects left from last year- Please pick them up before Friday!*Circle of Friends applications can be found outside Miss Gray’s room (503). Please return the application by September 23 to Mr. Ginter or Ms. Gray.* Sophomores and Juniors- The PSAT will be given here at WHS on Wednesday, October 19th at 8 am. Cost is $15. If you are interested, please sign up with Mrs. Hatfield in the counselors office by  September 20.*There will be a hunter safety course on September 24th and 25th.To register go to safehunters.com . Students that want to participate in shooting sports must have the hunter safety certificate to be on the team!  Please see Mrs. Chase if you have any questions.*Students- Please turn in lunch money to the cafeteria BEFORE School!Guidance Office News: Visits during lunch:Tuesday- Sept 13th- Bethel CollegeWednesday- Sept 21- Marine Sgt. Patrick HatsisThursday Sept 22- Baker UniversityTuesday- Sept 27th- Pittsburg StateThursday- Sept 29- University of KansasMonday- Oct 10- Fort Hays StateMonday- Nov 14- Kansas State UniversityWednesday-Nov 30- Washburn UniversityToday is National…National Video games dayNational Chocolate Milkshake Day.Follow us on Facebook.Follow us on Twitter.last_img read more

Women’s Tennis Hosts Western Illinois and Colorado State

first_imgDES MOINES, Iowa – The Drake University women’s tennis team returns to the Roger Knapp Tennis Center Friday at 5 p.m. to host Western Illinois, and then Colorado State on Sunday at 11 a.m.The Bulldogs (6-1) return after beating Milwaukee 7-0 at home on Feb. 9, and then falling at Minnesota, 7-0, on Feb. 11. The doubles team of Tess Herder and Liza Petushkova went 2-0 on the week, bringing their overall record to 7-0, and received the MVC Women’s Tennis Doubles team of the Week for the second time this season. Against Milwaukee, the Bulldogs won all but one match in straight sets.Petushkova dropped her first match of the season at Minnesota, but is still 6-1 in singles and an undefeated 7-0 in doubles matches.Western Illinois comes to Des Moines with a 3-3 record on the year. After their match against Drake, they will face Colorado State Saturday at noon.Colorado State holds a 4-4 record, including a win over Milwaukee, the only common opponent they share with Drake. After a string of wins, the Rams are coming off of a tough loss to UNLV. Colorado State is led by Alyssa Grijalva who is 6-1 in singles matches and is 4-3 in doubles with her partner Priscilla Palmero.After this weekend’s games, Drake has a two game road trip in Illinois against Missouri-St. Louis on March 2 and then SIU-Edwardsville on March 3.Print Friendly Versionlast_img read more