Over a 20 year period.

Over a 20 - year period, the study predicts that only two additional cases of tuberculosis would result screening of pre-kindergarten group.Valerie Flaherman, research associate in the UCSF Department of Pediatrics, is principal author of the report, which appears in the July issue of Pediatrics, the journal of the American Academy of Pediatrics. 'Pre-kindergarten screening is not a cost effective way to spend our health care dollars, 'said Flaherman. 'You need about seven per cent of the children who are screened in order to test to be positive cost for pre-kindergarten screening.

The tuberculosis skin test, also known as the tuberculin or test is used to determine whether someone was breathing in the bacteria infects by someone with active TB. People with latent TB infection have no symptoms and usually have a positive. Tuberculin skin test , you can not spread TB to others, but need treatment from from developing active TB in the future.The best weapon has the containment, stated Neil Ferguson, Howard Hughes Medical Institute international scientific scholar and a Prof. Mathematical biology from Imperial College London. Ferguson led a study, the results be Added in the Nature journal on 3 Publishes August 2005.

Scientists are saying that an outbreak of avian influenza and flu, most likely candidate on influenza pandemic, much could worse now, because people are not immune for it who, and in the modern world, infected may travel almost anywhere within 48 hours, may transfer the virus among each of she encounter along the way.. The last influenza pandemic in 1968 has occurred, a virus that a virus, which originally published in Hong Kong. In September this year the so-called Hong Kong flu was arrived in the U.S., and in March 1969, estimated to 675,000 Americans had fell ill and had died in almost 34,000.