RALEIGH, N.C. -- The chlorination and filtration systems at an artificial water rapids course where Olympic kayakers train were inadequate to kill a rare, brain-attacking organism, the U.S. Centers for Disease Control and Prevention said after an Ohio teenager died from the amoeba.The rushing water channels at the U.S. National Whitewater Center had become so murky with debris that the chlorine and ultraviolet light that might have killed the Naegleria fowleri amoeba didnt work, Dr. Michael Beach said Friday.Its kind of a murky water, said Beach, the CDCs associate director for healthy water. Speaking by phone, Beach wouldnt comment on whether a more effective system could have saved the life of Lauren Seitz, 18, of Westerville, Ohio.The whitewater center closed its whitewater rafting and kayaking operations on June 24. The fast-water channels will be drained, dried and scrubbed to kill any vestiges of the amoeba, the non-profit said on its web site. The website didnt indicate when the rapids course might reopen. A spokesman for the center declined to comment Friday on the CDC findings.Seitz died June 19, just three weeks after graduating from high school and more than a week after returning home to suburban Columbus, Ohio, from a church group trip that included a visit to the whitewater center about 15 miles west of Charlotte. Her only known underwater exposure was thought to be when her raft overturned at the whitewater center.The center held Olympic qualifying trials for U.S. canoe and kayak competitors in April and also hosted the qualifying races before the 2012 and 2008 Olympics, said Aaron Mann, a spokesman for USA Canoe/Kayak. American Olympians havent used the Charlotte course in recent weeks because theyve been competing in Europe ahead of a training camp in France leading up to the Rio de Janeiro games, he said.The amoeba is very common in lakes and other kinds of warm, fresh water, yet its very rare that it will make anyone sick, said Dr. Thomas Kerkering, chief of infectious diseases cat Virginia Tech Carilion School of Medicine in Roanoke, Virginia. The amoeba wont infect a person who drinks or swallows water containing it, and must enter the body through the nose to cause harm.Where most people get it is when they wipe out waterskiing and the water goes up their nose, Kerkering said.The odds that the organism will cause the dangerous, brain-eating disease are just about chance, Kerkering said, since some people jumping into the water might contract the illness while most others dont.Only 138 people nationwide have been stricken by the disease between 1962 and 2015, according to the CDC. Florida and Texas have had the most cases with 34 each in that time. North Carolina had four cases prior to Seitz, none of them involving the whitewater center, while Ohio is one of 32 states without a recorded case over the five-decade span. All five cases last year were fatal. They were in California, Oklahoma, Arizona, and two in Texas. The most recent was in Texas last August.Initial symptoms showing up on average five days after exposure may include headache, fever or vomiting and worsen to include stiff neck, confusion, seizures and hallucinations.The deadly amoeba was found in all 11 water samples taken from the National Whitewater Centers fast-flowing whitewater channel, said Dr. Stephen Keener, Mecklenburg Countys medical director. Four samples from the neighboring Catawba River didnt find the organism, but it was found in one sample of the rivers sediment, Keener said Thursday.Water for the centers courses comes from the Charlotte-Mecklenburg municipal system, two water wells and rain, the operator said.Seitz planned to study music and environmental science at Denison University in Ohio, according to an obituary posted by the funeral home handling arrangements. A celebration of her life is scheduled Saturday. Her family didnt return a telephone call seeking comment.---Follow Emery P. Dalesio at http://twitter.com/emerydalesio. His work can be found at http://bigstory.ap.org/content/emery-p-dalesio.---This story has been corrected to show that only 138 people were stricken by the disease over a five-decade span, not six decades.Nike Air Max Vendita Online . Burke is expected to miss two to three months after breaking a finger in the teams third preseason game. Tinsley, a 10-year veteran, spent the last two seasons in Utah, where the point guard averaged 3. Air Max 95 Donna Scontate . The 31-year-old Spain midfielder hasnt played since Madrid lost in the Copa del Rey final to Atletico Madrid in May due to back and foot injuries. http://www.airmaxscarpescontate.it/scarpe-air-max-97-prezzo-basso/max-97-uomo-saldi.html .com) - The Pittsburgh Penguins placed forward James Neal on injured reserve Tuesday. Air Max 720 Saldi .Y. -- Buffalo Bills coach Doug Marrone has drawn on his Syracuse connections once again by hiring Rob Moore to take over as receivers coach. Air Max 720 Uomo Saldi . Ancelotti says Ronaldo has recovered from a hamstring injury but "but he doesnt feel comfortable yet so we wont risk him." Madrid is third in the Spanish league, six points behind leader Barcelona, going into Saturdays game against Valladolid.CINCINNATI -- The Bengals defended linebacker Vontaze Burfict on Wednesday for his actions during a loss to New England, which drew a $75,000 fine from the league, according to a person familiar with the situation.Burfict was fined for stepping on Patriots running back LeGarrette Blount after he scored a touchdown near the end of New Englands 35-17 win on Sunday, according to the person, who spoke on condition of anonymity because fines for this week have not yet been announced by the league.Coach Marvin Lewis disagreed with the linebackers punishment.I dont think he did anything wrong, Lewis said. We were not in the wrong here, in my opinion. Its unfortunate.The volatile linebacker has a history of violating player safety rules. His hit to Antonio Browns head gave the receiver a concussion and moved the Steelers in range for their winning field goal in the final minute of Pittsburghs 18-16 victory over the Bengals in the first round of the playoffs last season.The NFL suspended Burfict for that hit and numerous other ones during his career.Burfict wasnt in the locker room while it was open to the media on Wednesday. He suffered an ankle injury during practice in the afternoon that forced him to sit out the end of the session, but Lewis said its not believed to be serious.The defending AFC North champions are 2-4 -- their worst start in six years -- as they host the Cleveland Browns (0-6) on Sunday. Burfict is expected to play.Cornerback Adam Pacman Jones, who also drew a penalty that helped set up Pittsburghs winning kick, said opponents are trying to rile Burfict during games to provoke an incident.He is (targeted), but everybody knows what it is, Jones said. At a certain point, you just have to go play football and try not to let it botther you the way you play.dddddddddddd Me talking to Tez, it does bother him.Burfict had another play in New England that drew scrutiny. He hit Martellus Bennett in the side of the knee when the tight end wasnt the intended receiver on a pass by Tom Brady. The tight end got up limping. No flag was thrown, but the play was shown repeatedly during the television broadcast.My point is that stuff like that happens during a football game, left tackle Andrew Whitworth said. Once youre labeled as a guy that does that, it becomes a bigger topic. It happens in football every day and unless youre going to point out everybody that does it, dont single out individuals.Browns receiver Terrelle Pryor tried out for a backup quarterback spot with Cincinnati last year but was released. He got to know Burfict during his time with the Bengals.I saw the hit on Martellus -- it didnt look good, but I personally like Burfict, Pryor said on Wednesday. I like the way he plays the game, not from the standpoint of some dirty stuff that goes on, but I think hes a heck of a player.Game notesThe Bengals announced that the Browns game has sold out. ... TE Tyler Eifert returned to practice on a limited basis. He hasnt played this season because hes recovering from offseason ankle surgery and he hurt his back a couple of weeks ago. ... C Russell Bodine (ankle), G Clint Boling (shoulder) and DT Pat Sims (neck) were held out of practice. Bodine suffered an ankle sprain at New England.---AP Sports Writer Tom Withers in Cleveland contributed to this report.---Online: AP NFL website: www.pro32.ap.org and AP NFL Twitter feed: www.twitter.com/AP-NFL ' ' '