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spec: There is uncertainty in Congress over how long the conference committee will take to negotiate the final bill . They unfolded something that looked like a beach toy and wrapped it around Clarice 's leg , fastening it with Velcro . Contacts are persons who have been exposed , for any length of time , to a laboratory confirmed or epidemiologically linked case during their infectious period ( 4 days before to 4 days after rash onset ) ; exposure must be face-to-face or in a confined setting such as a class room . `` Although growth hormone has been widely publicized as an anti-aging therapy and initial studies suggest that it might be clinically beneficial and safe in the healthy elderly , we find little evidence to support these claims , '' the authors state . But our responses need to focus on individuals , not populations . Such high malnutrition rates are difficult to explain . Societal changes are much different and more complex because the benefits are less quantifiable and whether or not they outweigh the potential negatives can always be debated and it is very difficult to revert back once changes have been made . If the blocks are due to regular recombination events , then populations may or may not share them , depending on how long ago the recombination events occurred . Health information materials ( print , radio , television , or other media ) are often targeted toward specific audiences , particularly populations at higher risk of developing a particular disease or condition or those with a higher propensity for using a particular practice or product .