OSHA Hazard
Recognition
U.S.
Department of Defense/Seaman Rob Aylward (U.S. Navy)
Many
workers, even those who do not encounter infectious people in the course of
their job duties, have similar exposure risks as the general American public
during a pandemic. Other workers, including some covered on this webpage
provides, are at increased risk of exposure to SARS-CoV-2 while on the job.
What is the risk to
workers in the United States?
The risks
from SARS-CoV-2, the virus that causes Coronavirus Disease 2019 (COVID-19), for
workers depends on how extensively the virus spreads between people; the
severity of resulting illness; pre-existing medical conditions workers may
have; and the medical or other measures available to control the impact of the
virus and the relative success of these measures. The U.S. Centers for Disease
Control and Prevention (CDC) provides detailed information about this topic.
According to the CDC, certain people, including
older adults and those with underlying conditions such as heart or lung disease
or diabetes, are at higher risk for developing more serious complications from
COVID-19.
Classifying Risk of
Worker Exposure to SARS-CoV-2
Worker
risk of occupational exposure to SARS-CoV-2 during a pandemic may depend in
part on the industry type and the need for contact within 6 feet of people
known to be, or suspected of being, infected with SARS-CoV-2. Other factors,
such as conditions in communities where employees live and work, their
activities outside of work (including travel to COVID-19-affected areas), and
individual health conditions, may also affect workers' risk of getting COVID-19
and/or developing complications from the illness.
OSHA has
divided job tasks into four risk exposure levels: very high, high, medium, and
lower risk, as shown in the occupational risk pyramid, below. The four exposure
risk levels represent the probable distribution of risk. Most American workers
will likely fall in the lower exposure risk (caution) or medium exposure risk levels
Lower Exposure Risk
(Caution)
Jobs that
do not require contact with people known to be, or suspected of being, infected
with SARS-CoV-2. Workers in this category have minimal occupational contact
with the public and other coworkers. Examples include:
§ Remote
workers (i.e., those working from home during the pandemic).
§ Office
workers who do not have frequent close contact with coworkers, customers, or
the public.
§ Manufacturing
and industrial facility workers who do not have frequent close contact with coworkers,
customers, or the public.
§ Healthcare
workers providing only telemedicine services.
§ Long-distance
truck drivers.
Medium Exposure Risk
Jobs that
require frequent/close contact with people who may be infected, but who are not
known to have or suspected of having COVID-19. Workers in this category
include:
§ Those who
may have frequent contact with travelers who return from international
locations with widespread COVID-19 transmission.
§ Those who
may have contact with the general public (e.g., in schools, high population
density work environments, and some high-volume retail settings).
High Exposure Risk
Jobs with
a high potential for exposure to known or suspected sources of SARS-CoV-2.
Workers in this category include:
§ Healthcare
delivery and support staff (hospital staff who must enter patients’ rooms)
exposed to known or suspected COVID-19 patients.
§ Medical
transport workers (ambulance vehicle operators) moving known or suspected
COVID-19 patients in enclosed vehicles.
§ Mortuary
workers involved in preparing bodies for burial or cremation of people known to
have, or suspected of having, COVID-19 at the time of death.
Very High Exposure
Risk
Jobs with
a very high potential for exposure to known or suspected sources of SARS-CoV-2
during specific medical, postmortem, or laboratory procedures. Workers in this
category include:
§ Healthcare
workers (e.g., doctors, nurses, dentists, paramedics, emergency medical
technicians) performing aerosol-generating procedures (e.g., intubation, cough
induction procedures, bronchoscopies, some dental procedures and exams, or
invasive specimen collection) on known or suspected COVID-19 patients.
§ Healthcare
or laboratory personnel collecting or handling specimens from known or
suspected COVID-19 patients (e.g., manipulating cultures from known or
suspected COVID-19 patients).
§ Morgue workers
performing autopsies, which generally involve aerosol-generating procedures, on
the bodies of people who are known to have, or are suspected of having,
COVID-19 at the time of their death.
Job Duties Affect
Workers’ Exposure Risk Levels
As
workers’ job duties change or they perform different tasks in the course of
their duties, they may move from one exposure risk level to another. Additional
examples of workers who may have increased risk of exposure to SARS-CoV-2
include those in:
§ Other
types of healthcare positions (including pre-hospital and medical transport
workers, allied medical care professionals, and support staff)
§ Emergency
response (e.g., emergency medical services workers, firefighters, and law
enforcement officers)
§ Other
postmortem care positions (e.g., funeral directors)
§ Research
or production laboratory workers
§ Airline
operations
§ Retail
operations, particularly those in critical and/or high-customer-volume
environments
§ Border
protection and transportation security
§ Correctional
facility operations
§ Solid
waste and wastewater management
§ Environmental
(i.e., janitorial) services
§ In-home
repair services
§ Travel to
areas where the virus is spreading
§ Pastoral,
social, or public health workers in jobs requiring contact with community
members who may spread the virus
§ Transit
and delivery drivers, depending on their degree of close contacts with the
public
This list
is not intended to be comprehensive, and employers should always rely on
thorough hazard assessments to identify if and when their workers are at
increased risk of exposure to the virus on the job.
How Does COVID-19
Spread?
Although
the pandemic possibly originated from humans exposed to infected animals,
SARS-CoV-2—like other coronaviruses—spreads between people and cause COVID-19.
The CDC acknowledges that at this time, there is no evidence that companion
animals, including pets, can spread COVID-19 to people or that they might be a
source of infection in the United States.
According to the CDC, person-to-person
transmission occurs during close (within 6 feet) contact with a person with
COVID-19, primarily from respiratory droplets produced when an infected person
coughs or sneezes. These droplets, particularly when aerosolized, can be
deposited in the mouth, nose, or eyes of nearby people or be inhaled into the
lungs. Airborne transmission from person-to-person over long distances
(including as a result of evaporating droplets that leave behind infectious
particles known as droplet nuclei) is believed to be unlikely.
People
can also become infected with SARS-CoV-2 by touching surfaces or objects
contaminated with the virus, and then touching their mouths, noses, or eyes.
Current evidence suggests that novel coronavirus may remain viable for hours to
days on a variety of surfaces. Frequent cleaning of visibly dirty and
high-touch surfaces, followed by disinfection, can help prevent SARS-CoV-2 and other
respiratory pathogens (germs) from spreading in workplaces.
Person-to-person
spread is likely to continue to occur under current pandemic conditions.
There is
still more to learn about the transmissibility, severity, and other features
associated with SARS-CoV-2.
Identifying Potential
Risks and Sources of Exposure
OSHA
requires employers to assess occupational hazards to which their workers may be
exposed. Some OSHA standards, such as those for personal protective equipment
(PPE) (29 CFR 1910.132) and respiratory protection (29 CFR 1910.134), include these types of
requirements.
In
assessing potential hazards, employers should consider if and when their
workers may encounter someone infected with SARS-CoV-2 in the course of their
duties. Employers should also determine if workers could be exposed to
environments (e.g., work sites) or materials (e.g., laboratory samples, waste)
contaminated with the virus.
Depending
on the work setting, employers may also rely on the identification of sick
individuals who have signs, symptoms, and/or a history of travel to
COVID-19-affected areas, to help identify exposure risks for workers and
implement appropriate control measures. It is also possible that someone may
have been in close contact (within about 6 feet) with someone with COVID-19 in
their community and, thus, may have had exposure. The Control and Prevention page provides guidance
for controlling risks for worker exposures.
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