A new study just published in the New England Journal of Medicine strongly suggests that this method of screening is virtually ineffective in far too many cases. They tracked the testing of almost 2,000 Marine Corps recruits who were entering basic training. All were given temperature checks and grilled about whether or not they may have come in contact with any infected individuals. All but a handful of the recruits who went on to test positive after a nasal swab were unaware of having been exposed and had normal body temperatures. In other words, nearly all of them were asymptomatic carriers who appeared otherwise quite healthy and the screening methods being used only identified a small percentage of them. (CBS New York)