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........According to a recent United Press International article, 55 percent of the 165 U.S. colleges tracking H1N1 say they have infected students....
...The federal Centers for Disease Control and Prevention has been telling people to stay home from work and school and avoid contact with others until a day after their fever breaks. The new research suggests they may need to be careful for longer — especially at home where the risk of spreading the germ is highest.
Swine flu also appears to be contagious longer than ordinary seasonal flu, several experts said.
"This study shows you're not contagious for a day or two. You're probably contagious for about a week," said Gaston De Serres, a scientist at the Institute of Public Health in Quebec.....
...."It's probably realistic that this virus sheds much longer than seasonal flu," said Dr. Jonathan McCullers, an infectious diseases specialist at St. Jude Children's Research Hospital in Memphis, Tenn.
Three reports suggest this is so. De Serres and other researchers in Canada took nose and throat swabs from 43 patients with lab-confirmed flu and dozens of other sick family members.
On the eighth day after symptoms first appeared, 19 to 75 percent showed signs of virus remaining in their noses, depending on the type of test used.
"This proportion appears to be very big, and it is," but it's not clear how much virus is needed to actually spread flu, so the lower number is more reliable, he said.
Dr. David C. Lye reported on 70 patients treated at Tan Tock Seng Hospital in Singapore. Using a very sensitive test to detect virus in the nose or throat, he found that 80 percent had it five days after symptoms began, and 40 percent seven days after. Some still harbored virus as long as 16 days later. How soon they started on antiviral medicines such as Tamiflu made a difference in how much virus was found, but not whether virus was present at all.
A third report came from Dr. Guillermo Ruiz-Palacios of the National Institutes of Medical Science and Nutrition in Mexico, where the first cases of swine flu were detected.
Infected people "shed the virus for a very, very long time," often for more than a week after the start of symptoms, he told the conference. This was especially true of obese people, and patients who started on medicines longer than two days after symptoms first appeared....
chiggerbit wrote:I just heard from two of my kids tonight, saying that they are pretty sure they've had the flu--one just getting over it, and the other a couple of weeks ago, both likely having gotten it from work. Both were mild cases.
Amid developing global concern surrounding the possibility of a “swine flu” epidemic, scientists at Storm Exchange are examining the role that weather conditions may play in the spread of the disease in the U.S. It has long been recognized that the influenza virus survives and spreads more effectively in the winter months. However, this seasonal difference in flu incidence is related to humidity contrasts between summer and winter, rather than temperature differences. This was demonstrated in a recent study by Oregon State University researchers1, who showed that the low humidity of wintertime air, both indoors and outdoors, explains the higher incidence of flu in the winter. In particular, the “absolute” humidity of the air is the controlling factor, rather than the “relative” humidity that is sometimes quoted in weather report.....
So, without a culture-test taking several days, how do you distinguish between seasonal influenza and apparently manmade Swine Flu? Which symptoms are the give-away?
Public health department reports 2 new Iowa swine flu deaths
By Associated Press
1:56 PM CDT, September 28, 2009
DES MOINES, Iowa (AP) — The Iowa Department of Public Health is reporting two more deaths associated with the swine flu virus.
The Health department reported Monday the victims were adult males living in eastern Iowa who had personal factors that may have put them at higher risk for H1N1-related complications.
The deaths of the men bring to three confirmed Iowa deaths relating to the H1N1 virus.
Public health medical director Dr. Patricia Quinlisk says the deaths serve as a reminder the virus has the potential to cause severe disease and even death. She added the fact the fatalities were in east Iowa is not an indication the virus is more severe or prevalent in that area.
Quinlisk says residents should take precautions to prevent getting or spreading the virus, including cleaning hands frequently, covering mouths when coughing or sneezing, and staying home when ill.
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