Last Updated：2022/12/24
But the opposite concern also exists: egress, or transmission of particles from the wearer to the outside world. Historically, much less research has been conducted on egress, but controlling it—also known as “source control”—is crucial to stopping the person-to-person spread of a disease. Obviously, society-wide source control becomes very important during a pandemic.
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Source Sentence
But
the
opposite
concern
also
exists:
egress,
or
transmission
of
particles
from
the
wearer
to
the
outside
world.
Historically,
much
less
research
has
been
conducted
on
egress,
but
controlling
it—also
known
as
“source
control”—is
crucial
to
stopping
the
person-to-person
spread
of
a
disease.
Obviously,
society-wide
source
control
becomes
very
important
during
a
pandemic.
