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In the bottom yet your life she lifts so i mean would have probably been struck off the medical register. work is continuing a pace at the tuberculosis laboratory at bostonian hamburg. is that positive in qatar you know cancers laboratory about five thousand saliva samples suspected of containing tb pathogens are examined each year this ones also positive. these samples come from some of the poorest countries in the world theyre being examined for resistant strains of tuberculosis bacteria the r...

The bolster research center in this high security facility tb bacteria from all over the world are collected and analyzed using state of the arts methods. laboratory director catalina. and her coworkers are at the forefront of the battle against multi-drug resistant bacteria which are becoming an increasing problem worldwide alex and that flaming is an exam to fleming was the first i mean this is how he discovered the first drug that could be used to treat infectious disease. that must have been...

Columnists so i mean would have probably been struck off the medical register. work is continuing a pace at the tuberculosis laboratory at boston ia hamburg. is that positive in catalina cancers laboratory about five thousand saliva samples suspected of containing tb pathogens are examined each year this one is also positive. these samples come from some of the poorest countries in the world theyre being examined for resistant strains of tuberculosis bacteria the results are registered in a data...

As well and before you in that moment the bees inside concert and her team examined saliva samples to determine their resistance to drug treatment the results ascends back to the countries of origin so that doctors there can prescribe the most effective therapy. the work in this lab is very much in the spirit of alexander fleming. if they get us he would be astonished to see how many antibiotics we have today and hed certainly be surprised to see that antibiotics can actually treat tuberculosis ...

Effect of the fungal substance which i called penicillin. i waited for up to when everyone asked me how the fungus worked. in the head i had no idea how to grow it in a large amounts needed to carry out proper tests. and he chalks penicillin being used to physical wounds like luke launch septic. conventional treatment of the child and most significantly he mentions the possibility that ministration body injection systemic use get it into the bloodstream. fleming said samples of his fungus to any...

Pressed sam for more details. >> the clothing you were wearing saturday? >> i think it was a guess sweatshirt. >> reporter: sam readily gave those clothes to the police. he let them search his house too. and he willingly gave samples of his hair and blood. but something about sams behavior the week cathy was missing bothered her family. mary said shed repeatedly paged sam looking for cathy, but he was slow to respond. he call you back? >> not at first. >> reporter: but eventually he did? >> even...

Back in 1994, police suspected sam lopez of killing his sometime girlfriend, cathy torrez, but they couldnt make the case. one big reason -- sams cousin, javier, who told detectives he was with sam the night of the murder. javier was sams alibi. so he wasnt suspected of being part of the murder, or even being at the crime scene. >> thats right, yeah. they were looking at javier solely as an alibi witness who was lying to cover for sam. >> reporter: thats why, as detective daron wyatt now discove...

Friends, because technology changes. >> reporter: at the time of the murder, dna tests could only be done on big samples like blood spatter. but in the years since, analysis became possible for touch-dna, the microscopic calling cards many of us leave behind just by putting our hands on something. if sam and javier did place cathys body in the cars trunk, maybe, thought larry, there would be touch-dna on her clothes. >> search for dna in the areas that might be grabbed. especially areas that mig...

I dont know. >> do you know why he was shot. >> no, i dont know. >> but while there was evidence enough to charge claudia, was there enough to convict her. you got miguels admission and mr. harrah and mr. hernandez on tape. you dont have anything proving that claudia set this in motion. >> we have the motive. the contentious divorce proceedings. we have the timing of this because what happens is that the judge finds the child abuse allegations to be false on april 12, i believe, 2000. the hit oc...

Related to javier lopez to the crime lab. >> reporter: daron sent javiers samples, now three years old, to the crime lab. two months later, the phone rang. >> they had positively identified a fingerprint on the trunk of cathys car, left there by somebody closing the lid of the trunk. >> reporter: javiers print was on the trunk of cathys car? >> yes. >> reporter: weeks later, another call from the lab. a bloodstain on the car had tested positive for both cathys dna and javiers. and the detective ...