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"Surgical mask...were not designed or approved...as respiratory
protective devices." Summary OpCit p.51
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"...respirators are not recommended for protection against
bloodborne disease because there is no evidence that bloodborne
pathogens can be or have been transmitted in the healthcare
workplace by the respiratory route." p.51
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"Assuming a 'worst case' of a single virion infectivity and knowing
the capability of minute aerosols to remain suspended in air and
therefore spread widely through the facility, respiratory protection
would be necessary for essentially every person within the facility.
However, if such a situation were true, the Agency would expect
seroconversion rates to be drastically increased among those
exposed; but this does not appear to be the case. "Summary, p.52"
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"OSHA
is not aware of specific engineering controls and work practices
that are currently available to address control of aerosols." p.51
...the
Agency (OSHA) lacks sufficient information in some important areas which
it feels must be obtained before it can require employers to control
exposures to aerosols...CDC and NIOSH...are unaware of research
indicating viability of these viruses (HIV and HBV) in aerosols."
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