Practice English Speaking&Listening with: Dr. Bhadelia Explains Reported ‘False Negatives’ In Coronavirus Test Results | The Last Word | MSNBC

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THE MEDICAL DIRECTOR OF SPECIAL PATHOGENS UNIT.

PATHOGENS UNIT. SHES AN MSNBC CONTRIBUTOR.

SHES AN MSNBC CONTRIBUTOR. DOCTOR, WHATS YOUR SENSE OF

DOCTOR, WHATS YOUR SENSE OF THIS?

THIS? I WANT TO GO BACK TO THE "WALL

I WANT TO GO BACK TO THE "WALL STREET JOURNAL" REPORTING.

STREET JOURNAL" REPORTING. ITS NOT A SCIENTIFIC ANALYSIS.

ITS NOT A SCIENTIFIC ANALYSIS. ITS MORE AN IN THIS CASEOF A TH

ITS MORE AN IN THIS CASEOF A TH TEST RESULTS WERE GETTING THEY

TEST RESULTS WERE GETTING THEY WERE THINKING WERE WRONG.

WERE THINKING WERE WRONG. >> THIS IS INTERESTING.

>> THIS IS INTERESTING. IT AN

IT AN THERE WAS A CHINESE STUDY THAT

THERE WAS A CHINESE STUDY THAT LOOKED AT PATIENTS THAT HAD THIS

LOOKED AT PATIENTS THAT HAD THIS DISEASE AND A CERTAIN NUMBER OF

DISEASE AND A CERTAIN NUMBER OF PEOPLE TESTED, SOMETIMES THE

PEOPLE TESTED, SOMETIMES THE TEST WAS NEGATIVE.

TEST WAS NEGATIVE. THIS IS COMPLICATED, RIGHT?

THIS IS COMPLICATED, RIGHT? I THINK FOR THE PERSON ON THE

I THINK FOR THE PERSON ON THE OTHER END OF IT WHO IS WAITING

OTHER END OF IT WHO IS WAITING FOR THEIR TEST, IT DOESNT

FOR THEIR TEST, IT DOESNT MATTER WHAT THE REASON IS WHY IT

MATTER WHAT THE REASON IS WHY IT CAME OUT TO NOT BE POSITIVE WHEN

CAME OUT TO NOT BE POSITIVE WHEN THEY THEMSELVES HAD THE DISEASE.

THEY THEMSELVES HAD THE DISEASE. BUT THE REASONS FOR WHY A TEST

BUT THE REASONS FOR WHY A TEST COULD BE POTENTIALLY FALSE

COULD BE POTENTIALLY FALSE NEGATIVE, THE IDEA THAT IT IT

NEGATIVE, THE IDEA THAT IT IT COULD BE NEGATIVE WHEN THERE IS

COULD BE NEGATIVE WHEN THERE IS DISEASE THERE IS MULTI FOLD.

DISEASE THERE IS MULTI FOLD. ONE IS ACTUALLY IT THE VIRUS

ONE IS ACTUALLY IT THE VIRUS ITSELF.

ITSELF. HOW EARLY IN THE DISEASE ARE YOU

HOW EARLY IN THE DISEASE ARE YOU GETTING TESTED?

GETTING TESTED? FOR A LOT OF THESE TESTS, IF

FOR A LOT OF THESE TESTS, IF YOURE EARLY ENOUGH IT MAY NOT

YOURE EARLY ENOUGH IT MAY NOT BE AS ACCURATE BECAUSE ITS NOT

BE AS ACCURATE BECAUSE ITS NOT GOING TO PICK UP BECAUSE THE

GOING TO PICK UP BECAUSE THE CONCENTRATION ISNT THAT HIGH.

CONCENTRATION ISNT THAT HIGH. AS THE DISEASE IS PROGRESSING IN

AS THE DISEASE IS PROGRESSING IN A PATIENT, HOW IS THE VIRUS

A PATIENT, HOW IS THE VIRUS ACTING?

ACTING? THATS PART OF THE DISEASE WERE

THATS PART OF THE DISEASE WERE STILL LEARNING ABOUT.

STILL LEARNING ABOUT. HOW DOES THE VIRUS MOVE THROUGH

HOW DOES THE VIRUS MOVE THROUGH THE BODY?

THE BODY? WHERE DOES IT CONCENTRATE AS THE

WHERE DOES IT CONCENTRATE AS THE PERSON GETS SICK?

PERSON GETS SICK? THEN THERE IS A TEST ITSELF AND

THEN THERE IS A TEST ITSELF AND IT HAS BEEN TALKED ABOUT BEFORE

IT HAS BEEN TALKED ABOUT BEFORE A HUGE NUMBER OF THESE TESTS

A HUGE NUMBER OF THESE TESTS THAT ARE ON THE MARKET RIGHT NOW

THAT ARE ON THE MARKET RIGHT NOW ARE LOOKING FOR THE GWINNETT

ARE LOOKING FOR THE GWINNETT TICK --

TICK -- GENETIC MATERIAL AND SO, BY THE

GENETIC MATERIAL AND SO, BY THE TIME A TEST GETS AN FDA AND

TIME A TEST GETS AN FDA AND EMERGENCY USE AUTHORIZATION, IT

EMERGENCY USE AUTHORIZATION, IT HAS A LITTLE BIT OF GUARANTEE IT

HAS A LITTLE BIT OF GUARANTEE IT WILL ALEAST T LEAST DETECT THE V

WILL ALEAST T LEAST DETECT THE V TO A LIMIT OF DESECTION.

TO A LIMIT OF DESECTION. HERE IS THE TOUGHEST PART.

HERE IS THE TOUGHEST PART. WHICH IS MOST OF THE TIMES WHEN

WHICH IS MOST OF THE TIMES WHEN THERE IS NO OUTBREAK, WE TAKE A

THERE IS NO OUTBREAK, WE TAKE A NEW TEST AND WE TAKE IT FOR A

NEW TEST AND WE TAKE IT FOR A CLINICAL TEST DRIVE.

CLINICAL TEST DRIVE. WE CALL THAT CLINICAL VALIDATION

WE CALL THAT CLINICAL VALIDATION OF A TEST SEEING IF ITS

OF A TEST SEEING IF ITS ACCURATE IN THE LABORATORY, HOW

ACCURATE IN THE LABORATORY, HOW DOES THIS PLAY OUT IN THE REAL

DOES THIS PLAY OUT IN THE REAL WORLD AND THATS WHERE I THINK

WORLD AND THATS WHERE I THINK IT GETS MORE COMPLICATED.

IT GETS MORE COMPLICATED. SO WHEN -- HOW SICK WERE YOU

SO WHEN -- HOW SICK WERE YOU WHEN THE TEST WAS DONE?

WHEN THE TEST WAS DONE? THE TEST GATHERED IN THE RIGHT

THE TEST GATHERED IN THE RIGHT WAY?

WAY? THE TEST PERFORMED HOW IT SHOULD

THE TEST PERFORMED HOW IT SHOULD HAVE BEEN AND THE AGENTS FEED IN

HAVE BEEN AND THE AGENTS FEED IN THE LABORATORY WERE THERE AND

THE LABORATORY WERE THERE AND PERFORMED IN THE RIGHT WAY.

PERFORMED IN THE RIGHT WAY. LASTLY, BY THE TIME THE SAMPLE

LASTLY, BY THE TIME THE SAMPLE CAME TO THE LABORATORY, WAS IT

CAME TO THE LABORATORY, WAS IT APPROPRIATE ENOUGH TO BE TESTED

APPROPRIATE ENOUGH TO BE TESTED TO MEET THAT LIMIT OF DETECTION?

TO MEET THAT LIMIT OF DETECTION? VERY COMPLICATED BUT IN THE END,

VERY COMPLICATED BUT IN THE END, ALL THIS TO SAY WE ARE SEEING

ALL THIS TO SAY WE ARE SEEING THIS.

THIS. CLINICALLY WERE SEEING THOSE IN

CLINICALLY WERE SEEING THOSE IN OUR CARE THAT THERE ARE PORTIONS

OUR CARE THAT THERE ARE PORTIONS OF PEOPLE WHO COME IN WHO

OF PEOPLE WHO COME IN WHO CLEARLY HAVE THIS DISEASE AND A

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