503-226-5111. IF WE DO NOT USE YOUR QUESTIONS
TONIGHT WE WILL KEEP ANSWERING
YOUR QUESTION EACH DAY HERE AT
7:00.
7:00.
7:00. >>
7:00. >> WE WANT TO GET STRAIGHT TO
THOSE QUESTIONS.
THOSE QUESTIONS. WE ARE JOINED VIA VIDEO CHAT BY
DR. KEN STEDMAN.
HE IS A BIOLOGIST AT PORTLAND
STATE.
STATE.
STATE. THANK YOU FOR TAKING THE TIME
TO TALK WITH US.
THESE ARE QUESTIONS OUR VIEWERS
HAVE SENT US.
WE KNOW YOU ARE AN EXPERT IN
THE SPREAD OF VIRUSES LIKE THE
NOVEL CORONAVIRUS.
NOVEL CORONAVIRUS. WE HAVE HEARD A LOT OF THEORIES
ABOUT HOW THIS STARTED.
CAN YOU TELL US HOW THIS GOT
STARTED?
STARTED?
STARTED? >> EXACTLY HOW IT STARTED
NOBODY KNOWS.
NOBODY KNOWS. ONE OF THE GREAT THINGS ABOUT
THIS PARTICULAR CORONAVIRUS IS
IT HAS GOT A REALLY LONG
SEQUENCE.
SEQUENCE.
SEQUENCE. ABOUT 300 LETTERS MAKEUP THE
VIRUS CODE AND GENOME.
JUST BY LOOKING AT THE LETTERS
AND COMPARING THEM TO OTHER
VIRUSES THAT ARE KNOWN IT IS
PRETTY CLEAR THAT THIS
CORONAVIRUS HAS COME ORIGINALLY
COME BRAT FROM BATS NOT
DIRECTLY FROM THE BATS BUT THE
SEQUENCES ARE SO SIMILAR THAT
HAS TO BE A BAT IN THERE.
>> I KNOW A LOT OF PEOPLE ARE
STUCK AT HOME.
A LOT OF PEOPLE ARE ORDERING
THINGS ONLINE.
THINGS ONLINE. A BIG QUESTION, CAN VIRUSES
LIMON BOXES FROM AMAZON?
>> I AM NOT SPECIFICALLY GOING
TO TALK ABOUT AMAZON HERE.
BOXES IN GENERAL THERE WAS A
NICE STUDY THAT WAS JUST
PUBLISHED ALMOST OUT WHERE
PEOPLE SAID WITH SARS HOPE IT
TOO, THE VIRUS CAUSING COBIT
COVID-19.
COVID-19.
COVID-19. THEY LOOKED AT THE VIRUS ON
CARDBOARD AND LOOKED TO SEE HOW
LONG IT COULD SURVIVE UNDER
THOSE CONDITIONS.
THOSE CONDITIONS. IT TURNS OUT IT REALLY WAS NOT
THAT LONG.
THAT LONG. IT WAS A FEW HOURS.
THAT WAS WITH A LOT OF VIRUS
THEY PUT ONTO THE CARDBOARD IN
THE FIRST PLACE.
I THINK CARDBOARD IS NOT REALLY
AN ISSUE UNLESS THE PERSON
DELIVERING IT HAPPENS TO HAVE
COUGHED ON IT RIGHT BEFORE THEY
GIVE IT TO YOU.
IN GENERAL, THOSE PACKAGES ARE
VERY SAY.
VERY SAY.
VERY SAY. >> THERE WAS A TIME NOT LONG
AGO A LOT OF PEOPLE WERE
WORRIED ABOUT ZEKE A VIRUS AND
MISSED IN MOSQUITOES PASSING
THAT ON.
THAT ON.
THAT ON. WHEN VERA WANTS TO KNOW CAN
MOSQUITOES PASS ON THE VIRUS.
>> ABSOLUTELY NOT.
THIS IS A RESPIRATORY VIRUS.
YOU BREATHE IT IN.
IT REPLICATES IN YOUR LUNGS.
THAT IS WHY PEOPLE ARE HAVING
ALL OF THESE PROBLEMS.
IT IS A LUNG PROBLEM.
IT DOES NOT GET INTO YOUR
BLOOD.
BLOOD.
BLOOD. IF
BLOOD. IF IT DOESN'T GET INTO YOUR
BLOOD THERE IS NO WAY FOR IT TO
GET INTO A MOSQUITO.
>> DR. STEDMAN, HOW LONG DOES
THE VIRUS STAY ACTIVE ONCE
AIRBORNE?
AIRBORNE?
AIRBORNE? >> THAT IS A REALLY GOOD
QUESTION.
QUESTION.
QUESTION. AGAIN, A SIMILAR STUDY WHICH
WAS JUST PUT OUT WHERE THEY
LOOKED OUT IN A VERY CONTROLLED
CONDITION EXACTLY HOW LONG THE
VIRUS COULD STAY IN A VERY TINY
PARTICLE.
PARTICLE.
PARTICLE. THESE ARE DROPLETS.
THIS IS MOISTURE YOU PRODUCE.
IT TURNS OUT IT IS MAYBE HALF
AN HOUR.
AN HOUR.
AN HOUR. AT THE VERY, VERY LONGEST
CONDITIONS ABOUT THREE HOURS.
AGAIN THAT WAS UNDER A
COMPLETELY CONTROLLED
COMPLETELY CONTROLLED LABORATORY CONDITION.
LABORATORY CONDITION. EXACTLY HOW LONG IT WOULD LAST
IN THE REAL WORLD IN THE REAL
ENVIRONMENT IS NOT ENTIRELY
CLEAR.
CLEAR.
CLEAR. WE
CLEAR. WE DO KNOW ONCE SOMEONE CALLS
AND SNEEZES IT COMES OUT OF
THEIR MOUTH.
THEIR MOUTH. THIS PARTICLE WILL DROP TO THE
GROUND VERY QUICKLY.
THAT IS THE REAL REASON WE
SHOULD HAVE PHYSICAL DISTANCE.
I DON'T LIKE SOCIAL DISTANCING.
IT IS PHYSICAL DISTANCE WE
SHOULD BE TALKING ABOUT.
THE PHYSICAL DISTANCE IS WHAT
ALLOWS THE PARTICLE TO DROP TO
THE GROUND.
THE GROUND. THEN, IF YOU DON'T BREATHE IT
IN AND YOU ARE NOT LICKING THE
FLOOR THEN I THINK WE ARE IN
PRETTY GOOD SHAPE.
>> GRAVITY IS OUR FRIEND IN
THAT CASE.
THAT CASE. PATTY WANTS TO KNOW IF HER PETS
CAN GET THE VIRUS.
IF SO, WHAT CAN SHE DO TO KEEP
THEM SAFE?
THEM SAFE? >> EIGHT APPARENTLY APPARENTLY
PETS CANNOT GET THE VIRUS.
THERE WAS ONE CASE WHERE
SOMEONE WAS TALKING ABOUT DOGS.
THAT IS REALLY QUESTIONABLE
WHETHER THERE WAS AN INFECTION
IN THIS CASE.
WE ALL LOVE OUR PETS.
IT REALLY DOES SEEM THAT THIS
PARTICULAR VIRUS LIKE MOST
VIRUSES ARE PRETTY SPECIFIC FOR
ONE PARTICULAR THING THEY
INFECT.
INFECT.
INFECT. I
INFECT. I MENTIONED BATS BEFORE.
THEY HAVE TONS OF
CORONAVIRUS'S.
CORONAVIRUS'S. THE BATS DON'T GET SICK.
THAT IS PROBABLY WHAT IS
HAPPENING IN THE CASE OF THIS
PARTICULAR VIRUS AND YOUR PETS.
>> OUR LAST QUESTION, WE HAVE
BEEN GETTING A LOT OF QUESTIONS
ABOUT CIGARETTE SMOKE.
CAN IT BE TRANSMITTED THROUGH
CIGARETTE SMOKE OR VAPING
RELEASE?
RELEASE?
RELEASE? >> THAT REALLY DOES NOT SEEM TO
BE THE CASE.
THESE ARE RESPIRATORY DROPLETS.
ONE OF THE THINGS ABOUT VAPING
AND CIGARETTE SMOKE, THOSE ARE
VERY SMALL PARTICLES.
EVEN SMALLER PARTICLES IN TERMS
OF WHAT THESE RESPIRATORY
DROPLETS ARE LIKELY TO BE.
IF YOU THINK ABOUT SMOKE IT
FLOATS AROUND FOR A WHILE.
THAT IS NOT WHAT HAPPENS TO
THESE RESPIRATORY DROPLETS.
GRAVITY IS OUR FRIEND IN THIS