The outbreak of severe acute respiratory syndrome, or SARS, in Asia in 2003 only infected around 8, 000 people and killed about a tenth of these.
ECONOMIST: The spreading bird-flu menace reaches Europe | The
Users' machines will only be infected if they open and run the attachment bearing the worm.
It came back negative, which can happen with people infected only recently.
These drugs could be used not only to treat infected patients, but as a prophylaxis in those who might be exposed to the bug.
Not only were the infections eliminated, but their investigation showed no accumulation of toxic substances in the mice, confirming that the drugs were only targeting the infected cells.
But diagnosis in an individual who has only recently been infected can be difficult since early symptoms, such as red eyes and skin rash, are seen more frequently in patients who have more common diseases, according to the U.S. Centers for Disease Control and Prevention.
Although America leads the pack in medical inflation, it is not the only country that is infected.
We know it only takes a single infected computer to potentially infect thousands and perhaps millions of others.
Six children in the unit were found to have traces of the bug but only two had become infected, he said.
The Centre for Civilian Biodefence Studies says that, even if at first only 50 people were infected, the result could be a nationwide epidemic.
ECONOMIST: Biowarfare could be the worst terrorist threat of all
Jake Finkbonner was only 5 when he became infected by the bacterium after falling down while playing basketball, CNN affiliate King 5 News in Seattle reported.
HIV-infected people and only a little for producing information brochures.
In addition, global access to these life-saving therapies has been progressively increasing, which not only benefits the HIV-infected individual, but makes them less likely to transmit the virus to their sexual partners.
But the 3, 000 volunteers who received the vaccine were only 3.8% less likely to be infected with HIV than 1, 500 volunteers who received only the placebo.
"I know when your cows are infected there's only a one-way ticket and they are going to be slaughtered, " he said.
BSE-infected beef may be only about ten years into that period.
Only about one in five people infected with West Nile gets sick, and one in 150 of those will develop severe symptoms, including neck stiffness, disorientation, coma and paralysis.
That means that if only one individual in a partnership was infected, the couple would be able to have children without risking an infection in the other.
Today 2.7 million Americans are chronically infected with this killer virus, but only 800, 000 of them know it, so slow and insidious is the course of this disease.
DC, for example, there are only about 100 hospital beds that could provide proper isolation of infected patients.
ECONOMIST: Biowarfare could be the worst terrorist threat of all
Each year only about 150 people in the U.S. are infected with leprosy, a bacterial disease that can lead to nerve damage and disfigurement.
That means users don't need to reveal financial information themselves, only click on a link that directs them to a malware-infected Web page.
In 2008 that figure was 21%, although, in line with rates for the rest of the population, only 45% of pregnant women who did turn out to be infected received drugs to control their infection.
Only a handful of crematoriums in Britain are capable of safely disposing of infected cows.
CNN: France supports slaughter of British cattle if necessary
Professor Peter Smith, chairman of Seac, the scientific body that advises the government on CJD, said the only way to prove the link between BSE and CJD would be to inject BSE-infected material directly into a human.
Prescription treatments are only about 50 percent effective, and most of these infections usually require the loss of the infected nail itself, the NIH Web site says.
According to aid agency Oxfam, when a family member becomes infected, food production can fall by up to 60%, as women are not only expected to be carers, but also provide much of the agricultural labour.
应用推荐