Lab Demonstration Proves That Wearing
Masks Work In The Face Of Coronavirus
WEAR A PROPER MASK
July 30. 2020
Scientists and a newscaster cough in front of lab
Petri dishes to illustrate how coronavirus spreads
rapidly without wearing a mask:
Petri dish reveals bacteria shortly after
illustrating how coronavirus rapidly spreads:
A lab demonstration conducted by
microbiologist, Dr. Nwadiuto Esiobu, illustrated the
fact that masks work in aiding to reduce the spread of
coronavirus (Covid-19). Tests conclusively proved that
wearing a correct mask can prevent aerosols/droplets
from escaping the nose and mouth, and infecting others.
Dr. Nwadiuto Esiobu coughs in front of Petri dish
while wearing a surgical mask:
The Petri dish is examined shortly after and
reveals no bacteria, as the mask Dr. Nwadiuto Esiobu
wore prevented the spread of aerosols/droplets,
illustrating that masks are effective in taming the
spread of coronavirus. The doctor also emphasized the
importance of social distancing as well as wearing
masks:
Dr. Esiobu stated, "When you speak, you
release droplets. Those droplets are microbe-laden, many
bacteria, a lot of viruses, too." As coronavirus rates
in America continue to skyrocket with 60,000 infections
per day, due to some people refusing to wear masks or
social distance, people need to watch the demonstration
contained in the video and adjust their behavior to be
in compliance with medical guidelines. Once again, wear
your masks.
To watch the full video please click the link:
https://wsvn.com/news/investigations/mask-test-fau-microbiologist-checks-face-coverings-for-protection-against-covid-19/
STORY SOURCE
Mask Test: FAU microbiologist checks face
coverings for protection against COVID-19
July 28, 2020 - Kevin Ozebek | Leisa
Williams - (WSVN) - Masks have become a daily part of
our lives. People wear all kinds, from surgical masks to
fashion forward face coverings, but which ones offer the
best protection from the coronavirus? In tonight’s 7
Investigates, 7’s Kevin Ozebek puts several popular
masks to the test.
As COVID cases surge in South Florida,
the mandate is clear: masks are a must, but are all of
these different masks created equal? To find out, we
went inside the lab of Dr. Nwadiuto Esiobu. Dr. Nwadiuto
Esiobu, microbiologist, Florida Atlantic University:
“When you kiss someone, you’re actually signing up to
swap germs.”
She’s a microbiologist, with a sense of
humor, at Florida Atlantic University. She set up an
experiment to see what mask most effectively blocks the
tiny droplets we expel when we talk, sneeze, and of
course, cough.
Dr. Nwadiuto Esiobu: “When you speak,
you release droplets. Those droplets are microbe-laden,
many bacteria, a lot of viruses, too.” The guinea pigs
in this experiment: Dr. Esiobu, one of her students and
me.
Kevin Ozebek: “OK, so this first one is
going to be no covering of my face or mouth, so we’re
just going to cough on the petri dish, so let’s go.”
First we coughed without a mask right into a petri dish,
and then coughed into a separate petri dish six inches
away to see if distance matters.
Next, we all coughed through four
different types of masks. The KN-95 is a thick mask with
five layers. The surgical mask is lighter weight with
three layers.
Kevin Ozebek: “Here we go.” (coughs)
The neck gaiter is thin, almost
see-through.
Dr. Nwadiuto Esiobu: “I can see you very
well.”
But it’s easy to pull on and off.
We also tested a double-layer homemade
mask without a filter.
Kevin Ozebek: “A lot riding on this one:
hand-sewn by our photographer’s fiancee. Here we go,
five final coughs.”
To find out which mask keeps the most
droplets in, the petri dishes have to incubate over the
weekend.
We did the test on a Friday and came
back on a Monday.
Dr. Nwadiuto Esiobu: “So the results are
in. First, we found out that without the mask, you have
a whole lot of growth.”
This is one of the petri dishes we
coughed right on without a mask. Look at all the
bacteria!
It’s the kind of germ transfer you can
expect in close quarters.
Dr. Nwadiuto Esiobu: “This is likely
what would happen if you’re at the bar. You are looking
at bacterial colonies.”
There was a lot less bacteria in the
petri dishes we coughed on while we were six inches
away.
Kevin Ozebek: “What does this tell us
about social distancing?”
Dr. Nwadiuto Esiobu: “It works.”
But check out the petri dishes we
coughed on while we were wearing the KN-95 masks. They
looked good as new.
Dr. Nwadiuto Esiobu: “Each time with
this experiment, we find that 100% of the time, we got
no aerosols passed through the KN-95s.”
When we used surgical masks, the petri
dishes also grew no bacteria.
As for those cloth masks, homemade by
Milvian, our photographer’s fiancee, they worked, too.
Dr. Nwadiuto Esiobu: “Absolutely no
growth.”
The neck gaiter didn’t do as well.
You can see on one of the petri dishes
there’s a bacteria colony, but even the gaiter blocks a
large amount of potentially dangerous drops.
The bottom line: masks work.
Dr. Nwadiuto Esiobu: “Let’s take the
politics out of this, and whenever it is necessary, wear
the mask.”
You can do your own mask test right at
home. Dr. Esiobu says, if you can see light through your
mask, it’s too thin, or if you can blow a candle out
while wearing it, you probably need a thicker one.
https://wsvn.com