In this episode of The Scalpel, Dr. Rose explains the
importance of "control groups" in medical research.
versus nonuse and comparing masks types in health care
settings remained insufficient"
Annals of Internal Medicine: "The recommendation to wear
surgical masks to supplement other public health measures did not
reduce the SARS-CoV-2 infection rate among wearers by more than 50%
in a community with modest infection rates"
`Cochrane Library: "There is moderate certainty evidence that
wearing a mask probably makes little or no difference to the
outcome of laboratory‐confirmed influenza compared to not wearing a
"In intention-to-treat analysis, facemask use was neither
effective against laboratory-confirmed vRTIs, nor against CRI, not
even in per-protocol analysis."
"However, overall there is a lack of substantial evidence to
support claims that facemasks protect either patient or surgeon
from infectious contamination."
"No evidence was identified that examined a potential role for
surgical face masks in protecting staff from infectious material
encountered in the operating room."
Southern Medical Journal: "There was no reduction in
per-population daily mortality, hospital bed, ICU bed, or
ventilator occupancy of COVID-19-positive patients attributable to
the implementation of a mask-wearing mandate."
Covid advisor ""What we're worried about is people getting
exposed and getting infected while thinking they were actually
doing something to protect themselves,"
"Making pre-school children wear masks is bad public
"the difficulties associated with the mask’s use are
significantly pronounced in children aged between 3 and 5 years
"Use of face masks is not recommended in schools in
"The main insight of the present research is that face masks’
use influences emotion inference from faces for all ages and
especially for toddlers."