Beadles is focusing on the left Curtis Samuel Youth Jersey of the line, working the first-team guard spot between left tackle Staley and center Kilgore. He holds offers from Purdue and Baylor, and the one-time Central commit would choose from one of those three schools if he had to make a decision today. Sanders was one of the better ones also. I took a delay when Jabrill Peppers Jersey the hospital, says . This is about now, not then. The Buccaneers now have opening on their 53- roster which figures to be filled within the next 24 hours. We're taking a closer look, roundtable-style, at the Big Ten's draft: how certain teams did, the risers, the falls and more.

Other options for Chicago Samson Ebukam Youth Jersey the Carl Lawson Jersey are rookie Cody Whitehair from Dawuane Smoot Jersey State and veteran Larsen. Wynn had a final the eighth. More: Comrie, 36, last played 2010, appearing 21 for the Penguins. So if you want , it's going to be costly, and the hope is that you'll end up with one of the best high-leverage relievers the game.


Hockey is supposed to be fun, but when it's going like it did Monday night it's like being sat at the table next to your Frank Clark Jersey hated relative at Christmas NHL Hockey Jerseys dinner. To try to motivate them. the NHL Jerseys Cheap last two years, he played nine 2015 and 12 2016 and hasn't eclipsed the 1-yard barrier either. Rick Nash at least was heavily involved his first match back Akiem Hicks Womens Jersey being sidelined 20 by a nastier-than-anticipated left leg bone bruise. He lose his spot as a top-six forward once Tomas Hertl and or Ben Bishop USA Jersey Meier return from injury. , a 21-year-old right-hander, has the stuff of a future frontline starter. The winger is stuck a three-game scoring drought and could find it difficult to end that streak versus a Blackhawks team that is seventh the league goals allowed per game at just 2. But the 31-year-old center also wanted a to contribute, to play a prominent role and to show there's still plenty of tread on his tires. The Dodgers need Puig to play like a superstar, not just the decent player he was when healthy last .

If you thought things couldn't possibly get any uglier for the Brooklyn Nets, think again. Tue, 04 Oct 2016 New Jets RB Bilal Powell has caught 12 passes over the last two weeks after catching Eric Wood Youth Jersey three passes over the first two weeks of the . His pre-pitch stance has also been widely recognized, and has been dubbed Kimbreling, or Spider Arms. Such a move, however, only would occur if Authentic Samaje Perine Jersey price fell to the point where the Rays essentially could not refuse. I think I will fit well the scheme. Like the Hurricanes, the Ducks are loaded with blueliners.

It was a matchup of the 1951 NIT tournament champions against the 1951 NCAA tournament champions. Our primary focus is to reach and improve the lives of everyone living with cancer. I look at it as a blessing to play NFL Jerseys Free Shipping football this . He was a first-day starter for as a rookie and he looked a little lost at the beginning. Years later, Boswell, who is now the Chaplain of the Zane Beadles Womens Jersey recalled Brown's first campaign was financed by passing a paper cup during services. Because of his early years as a forward, he was also among the very best skaters and stickhandlers the league, and he had one personal dream above all others when he knew he MLB Jerseys Usa could play New York Jets Jersey NHL, to score a goal That chance came during the 1997 playoffs against Montreal. 7 each could receive some playing time, Sullivan said. Even the simplest ones involve a lot of behind-the-scenes work. Joe Gilliam Jersey 21 Sep NFL Jerseys China 2016 Fantasy Tip: The procedure usually requires four to six weeks to return, but there have been cases where a simple trim of the meniscus only cost a player two weeks. 's designs look like tattoos.

We just have to keep trying to help them. He was sixth the National League Hockey Jerseys slugging percentage , runs scored , runs batted and extra base hits ; he's second home Authentic Jaleel Johnson Jersey and seventh total bases . Acclaimed Naturalist and author Matthiessen makes the statement, it is the responsibility of the writer to speak for those who cannot speak for themselves. I used to say it was like comedy hour every Saturday when we'd go to watch Ndamukong Suh Jersey play.

14 at the Bittles and Hurt Funeral Home, 602 E. That's a priority, but Geno Smith Womens Jersey the cost of ? What is that, 90 grand? Navy Hospital Key West , but didn't stay as his parents were both the Navy Junior Seau Womens Jersey they moved often. Be Truthful. Dawson admitted to me that he had made that statement to Damian Jones Womens Jersey whom he described as a good friend of mine. Should Glavine wait one year before getting into the Hall? I followed the ball all the way out but evidently the umpire didn't.

Ameer Abdullah Youth Jersey Marrone, Joseph Guerrieri and Zappala finished second, third and sixth the 800m race. Add a display case to protect the quality and integrity of your memorabilia as this piece is likely to increase value over time. Well, the easy answer is to say that their finally starting to get some solid goaltending from Jake , but it goes beyond that. Made a lot of very timely saves. After missing Game 3 with a lower-body injury, San Sharks Derrick Morgan Youth Jersey Hertl will Game 4 as well. I kept coming and got a little extra work with the guys, the strength coaches and stuff.

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /home/u132810913/public_html/index.php:41) in /home/u132810913/public_html/libraries/joomla/session/session.php on line 423

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/u132810913/public_html/index.php:41) in /home/u132810913/public_html/libraries/joomla/session/session.php on line 423

Warning: Cannot modify header information - headers already sent by (output started at /home/u132810913/public_html/index.php:41) in /home/u132810913/public_html/libraries/joomla/session/session.php on line 426

Warning: Cannot modify header information - headers already sent by (output started at /home/u132810913/public_html/index.php:41) in /home/u132810913/public_html/templates/gk_twn2/libs/gk.template.helper.php on line 112
Algunas cepas de tos ferina podrían esquivar a la vacuna
A+ R A-

Algunas cepas de tos ferina podrían esquivar a la vacuna

E-mail Imprimir PDF

Algunas cepas de tos ferina podrían esquivar a la vacuna

La bacteria responsable de la tos ferina podría estar evolucionando en distintas cepas, y la vacuna actual no puede ofrecer una protección completa contra esas cepas nuevas, informan los investigadores.

En años recientes, los casos de tos ferina han aumentado dramáticamente. Decenas de miles han enfermado, y se han reportado 18 muertes, sobre todo de bebés, según los Centros para el Control y la Prevención de Enfermedades (CDC) de EE. UU.

Varios estudios recientes se han enfocado en el potencial de una inmunidad decreciente a partir de la vacuna contra la tos ferina con el tiempo. En una carta que aparece en la revista New England Journal of Medicine ( doi: 10.1056/NEJMc1212006), los investigadores apuntaron que quizás haya otro culpable: una evolución del germen en sí.

La vacuna contiene varios componentes que ayudan a dar al organismo inmunidad contra la bacteria de la tos ferina (la Bordetella pertussis). Uno de esos componentes se conoce como pertactina.

Se han encontrado cepas de la bacteria de la tos ferina que resultan negativas para la pertactina en Japón, Francia, Finlandia, y ahora en Estados Unidos, reportaron los investigadores en la carta. Esto significa que al menos un componente de la vacuna actual no es efectivo contra esas cepas recién halladas.

"Hay varias teorías sobre por qué estamos viendo más pertussis", comentó el Dr. Kenneth Bromberg, presidente de pediatría y director del Centro de Investigación de Vacunas del Centro Hospitalario de Brooklyn, en la ciudad de Nueva York. "Una teoría es un mejor diagnóstico. Una segunda (teoría) es que las vacunas no son tan buenas en términos de la longevidad como cuando se usaba la vacuna de célula completa. La tercera teoría es que ha habido cambios genéticos en las cepas de pertussis, de forma tal que las nuevas cepas son inmunes o relativamente inmunes a las vacunas actuales".

"Se piensa que las bacterias han cambiado y eliminan la pertactina que contienen en sí mismas", señaló Bromberg, quien no participó en la investigación actual.

Una segunda carta en la misma edición de la revista abordó otra de las teorías descritas por Bromberg: la efectividad de la vacuna actual.

A finales de los 90, la vacuna se cambió de una vacuna con la célula completa a lo que se conoce como una vacuna acelular.

"La vacuna de célula completa contiene la célula completa de la bacteria muerta, de forma que contiene todas las proteínas que la bacterias producen, obligando a la persona a lanzar un ataque contra todas las partes de la bacteria", explicó el coautor de la carta, el Dr. Paul Cieslak, director médico del Programa de Inmunización de Oregón, en Portland. "Con la nueva vacuna acelular, eligieron las proteínas que pensaban que eran más importantes. Sin la célula completa, hay menos efectos secundarios, pero quizás sea un poco menos efectiva".

Oregón experimentó un aumento significativo en el número de casos de tos ferina el año pasado. Oregón mantiene registros estatales de las inmunizaciones, además de registros de quién ha tenido un caso confirmado de tos ferina. Esta información permitió a Cieslak y a sus colegas revisar qué tipo de vacuna había sido administrada a los que luego se vieron infectados con tos ferina.

Hallaron que los casos reportados de tos ferina eran significativamente menos en los jóvenes que habían recibido su primera inmunización con la vacuna de la célula completa en lugar de la vacuna acelular.

¿Significa eso que se debería volver a usar la vacuna de la célula completa? "Nadie está defendiendo la vacuna de célula completa", enfatizó Cieslak. "Sin la vacuna de célula completa, hay menos efectos secundarios. Quizás sea un poco menos efectiva, pero tiene que ser segura".

Bromberg se mostró de acuerdo. "La vacuna de célula completa no volverá. La vacuna acelular es significativamente mejor, ya que no causa reacciones, pero no funciona durante tanto tiempo como creíamos", comentó.

Cieslak señaló que aunque la vacuna actual no es perfecta, "ciertamente recomendamos vacunarse. Estar vacunado sigue siendo mucho mejor".

Bromberg añadió que los expertos intentan averiguar formas para usar mejor la vacuna actual. Por ejemplo, los CDC añadieron hace poco una recomendación de que todas las mujeres embarazadas reciban la vacuna contra la tos ferina a finales del embarazo para ofrecer protección a sus hijos recién nacidos.

febrero 7/2013 (Medlineplus);

joomla 1.7