July Swine flu outbreak shows Tamiflu Ineffective
2009 10 20
By Maggie Fox | Reuters.com
The outbreak provided a unique opportunity to study the virus closely and Dr. Catherine Takacs Witkop and colleagues say they discovered some surprising things: Tamiflu, the drug used to treat influenza, did not help any of the previously healthy young men and women get better any quicker.
More than 100 new cadets at the U.S. Air Force Academy got infected with swine flu at a July 4 barbecue and fireworks display but quick isolation measures got it under control within two weeks, researchers reported on Tuesday.
The outbreak provided a unique opportunity to study the virus closely and Dr. Catherine Takacs Witkop and colleagues say they discovered some surprising things. Among them:
* Nearly a quarter, or 24 percent, of patients still had virus in their noses seven days after getting sick, including 19 percent who had been well for at least 24 hours
* Tamiflu, the drug used to treat influenza, did not help any of the previously healthy young men and women get better any quicker.
* Most cadets were sick for five days or longer
* Eleven percent of the cadets became infected.
In June, soon after the new H1N1 virus was declared a pandemic, 1,376 new cadets arrived for their first training at the academy, near Colorado Springs, Colorado. By July 24, 134 confirmed and 33 suspected cases were identified, Witkop's team reported in the American Journal of Preventive Medicine.
The cadets, unusually young and healthy, all did well and none became seriously ill or died. Most cases were traced to a July 4 party for the cadets, Witkop said.
"It was about 48 to 72 hours later that we saw the increase in the cadets presenting with the symptoms," Witkop said in a telephone interview.
Witkop said the academy doctors quickly designated one dormitory for the sick cadets and kept them away from the others.
They tested them daily for the virus, painting a picture of the course of the disease far more detailed than has been possible before.
IN THE NOSE
Eleven, or 19 percent, of nose washes taken from 58 patients who had been free of symptoms for a full 24 hours still contained virus, although it is not clear if the patients were still contagious.
The U.S. Centers for Disease Control and Prevention advises that H1N1 patients can return to work and school 24 hours after their symptoms such as fever go away.
The CDC's Dr. Anne Schuchat said researchers know people, especially children, can carry the virus long after they are better. "Shedding doesn't mean you are spreading," Schuchat told reporters in a telephone briefing. "Fever is a good marker of infectiousness or ability to spread."
Many of the cadets were treated with oseltamivir, pills sold by Roche AG under the Tamiflu brand name, but they did not get better any more quickly than untreated cadets.
"We did use it in the hope that we would stem the tide of the outbreak but I don't think the Tamiflu was the key player in the outreak resolution," Witkop said.
"I think it was ... the isolation protocol," she added. Cadets stayed in the sick dorm until they were free of symptoms for 24 hours, or for seven days after first getting sick, whichever was longer.
The CDC recommends saving Tamiflu for people most at risk of getting severely ill from flu, such as pregnant women, people with diabetes or asthma or disabled children.
The academy also quickly educated the cadets about washing hands and not spreading germs by covering their coughs, and Witkop said they used a great deal of hand sanitizer, which may have helped control the outbreak within 10 to 14 days.
Article from: Reuters.com
Latest News from our Front Page
6,000-Year-Old Temple with Possible Sacrificial Altars Discovered
2014 10 21
A 6,000-year-old temple holding humanlike figurines and sacrificed animal remains has been discovered within a massive prehistoric settlement in Ukraine.
Built before writing was invented, the temple is about 60 by 20 meters (197 by 66 feet) in size. It was a "two-story building made of wood and clay surrounded by a galleried courtyard," the upper floor divided into five ...
What happened to Journalist Serena Shim? Assassinated? Find out what happened to Serena, Press TV director calls on Turkey
2014 10 21
Press TV news director Hamid Reza Emadi says the “suspicious death,” of the news channel’s correspondent in Turkey is a tragedy for “anyone who wants to get the truth.”
Emadi made the remarks in an interview with Press TV on Sunday following Serena Shim’s death across the border from Syria’s Kurdish city of Kobani, where the ISIL terrorists and Kurdish fighters ...
Ancient Roman Nanotechnology Inspires Next-Generation Holograms for Information Storage
2014 10 21
The Lycurgus Cup, as it is known due to its depiction of a scene involving King Lycurgus of Thrace, is a 1,600-year-old jade green Roman chalice that changes colour depending on the direction of the light upon it. It baffled scientists ever since the glass chalice was acquired by the British Museum in the 1950s, as they could not work ...
Rapid Geomagnetic Reversal Possibility: Confirmed
2014 10 21
From the video: "The scientists who conducted the study are still unsure why the magnetic field is weakening, but one likely reason is the Earth’s magnetic poles are getting ready to flip, said Rune Floberghagen, the ESA’s Swarm mission manager. In fact, the data suggest magnetic north is moving toward Siberia."
Tune into Red Ice Radio:
Ben Davidson - Suspicious0bservers: Space Weather ...
Georgia Guide Stone 2014 cube stone removal
2014 10 21
From: Youtube: Was it all just a gag? it seems the cube stone just happens to be made out of the same Elberton granite that the rest of this morbid monument is made from.
|More News » |