texas has one of the few state medical associations that have. >> patients are having a much harder time getting... finding a doctor who will accept medicare. >> suarez: lou goodman is the ceo. with 47,000 members, it's the largest state medical society in the u.s. >> in 2000 we had about almost 80% of the doctors were taking new medicare patients. we just completed a survey last year, and we found that less than 60% were taking them. almost 20% fewer doctors are taking new medicare patients. and that really troubled us. >> suarez: goodman says the primary reason doctors are not taking new medicare patients or opting out altogether is because of something called the sustainable growth. it's a mathematical formula established by congress in 1997 to contain rising medicare costs. but in practice, it would have cut government payments to physicians for treating medicare patients every year since 2001. so every year congress at the last minute passes the so-called doc-fix averting the cuts and giving doctors a small raise. the annual doc-fix and the threats of lower rements in the future hav

texas at galveston. dr. marc siegl is a member of the fox news medical a team, associate professor of medicine at langone medicalcould be dangerous. >> this is called the guananito virus. it affects venezuelan rather. it does not affect rats from the united states. it's very deadly in venezuela rats, it's not going to jump to brit humto humans. the government accountability office is about to issue a report saying that the security in our labs isn't what it should be in the united states and that this stuff can happen. bill: you know about this research facility in galveston? tell us about it. >> that research facility in value vest ton is a very good lab, but the top research facilities in the united states and i want to reassure our viewers about this. they are called level 4bio containment facilities. cdc has two and the united states army research insurance two of infectious disease has the biggest, ten thousand square feet. people wearing space suits, researchers, the air is filtered, they very, very rarely have a problem and they are involved in defense against bioterrorism. so they got ebola there, and ot