Question: What should a fire fighter do if they have been in close contact with someone who has had Covid 19?

Answer passage (source: CDC):
page_title: FAQs for Wildland Firefighters
section_headers: What precautions should be implemented for protecting firefighters and other personnel at fire camps?
section_content: Fire camps can include thousands of personnel living together and working
collectively to respond to a wildfire, often in remote areas. In many ways,
fire camps are like small communities. For example, fire camps employ a number
of support personnel, some of whom may be considered at higher risk for
severe illness from COVID-19 (e.g., people 65 years and older, or
people with serious underlying medical conditions). Also, fire camps have many
people coming and going throughout the day. Therefore, extra precautions
should be taken. Note: Many of the recommendations in CDC’s COVID-19
Guidance for Shared or Congregate
Housing also apply to fire camps.
The following are protective measures that can be employed within the fire
camp to prevent COVID-19 transmission:

Screening of temperature and symptoms for everyone entering a fire camp and daily screening for those who remain at the camp
Encouraging personnel to maintain social distancing (6 feet or more) as much as feasible
Wearing cloth face coverings as a form of source control
Providing hand washing stations (soap and water) or hand sanitizers containing at least 60% alcohol throughout the camp, especially outside bathrooms, portable toilets, and dining facilities
Providing individual bottles of hand sanitizer for all personnel at the fire camp
Ensuring bathrooms, portable toilets, and handwash stations are well stocked with hygiene products (e.g., soap and water, hand sanitizer, paper towels)
Using disinfectants approved by the EPA for use against COVID-19external icon to clean showers, bathrooms, sinks, portable toilets, and handwash stations at least twice a day (in the morning and evening after heavy use) and commonly-touched surfaces in the dining facility before and after each meal. Make sure individuals doing the cleaning are trained on the proper application of the disinfectant and wear protective disposable gloves and other PPE as recommended by the disinfectant manufacturer
Instructing personnel to avoid placing toothbrushes (or other personal items) directly on sinks as that is a potential contamination pathway. Individual totes may be used to carry and keep personal items off sinks
Ensuring that food service personnel wear disposable gloves during preparation and serving of food and practice recommended hand hygiene
Staffing drink stations to limit the number of people touching the drink machines
Instructing personnel not to share personal items (e.g., cups, canteens, safety glasses, etc.) with others
Using ventilation systems, fans, or open windows to increase outdoor air circulation in enclosed spaces within the fire camp including command tents, dining facilities, and showers
Establishing housing in one area of the fire camp (or nearby community) that could be used for isolation, if necessary, and assigning someone on staff to make sure that anyone being isolated is provided with necessities. Note: it is likely people will get sick with illnesses other than COVID-19, but out of an abundance of caution, all illnesses should be treated as COVID-19 until medical staff determines otherwise
Ensuring medical staff in the fire camp are familiar with the CDC Guidance for Healthcare Professionals, which provides information on control measures, including PPE that should be worn, when caring for individuals with known or suspected COVID-19


Reviewer feedback on this answer:
This gives tips on how to prevent spread in a fire camp, but does not give information about what a fire fighter should do if they came in contact with a potentially infected individual.
This is an excellent answer that directly responds to what the person is asking. There's a ton of detail and extra links that would be useful to the person asking. Excellent answer

Reviewer ratings:
Bad
Excellent

Answer passage (source: CDC):
page_title: FAQs for Law Enforcement Agencies and Personnel
section_headers: What does CDC recommend for law enforcement personnel who have been in close contact (less than 6 feet) with a person with suspected or confirmed COVID-19?
section_content: If law enforcement personnel have direct personal contact with an individual
with suspected or confirmed COVID-19, they should immediately use alcohol-
based hand sanitizers with at least 60% alcohol, or wash
hands with soap and water for at least 20 seconds.
They should also avoid touching their eyes, nose, and mouth. Any uniform items
(or other surfaces) that were potentially exposed should be disinfected or
cleaned as soon as feasible. For example, the duty belt or other non-porous
items can be disinfected using products that are EPA-approved for use against
the virusexternal icon. Porous items, like the uniform, should
be replaced as soon as possible and then laundered according to manufacturers’
recommendations. This is especially important if any body fluids were expelled
during the encounter (bloodborne pathogen protocols should also be followed if
applicable). Gloves should be worn when touching potentially contaminated
items or applying disinfectants and it is important to perform hand hygiene
upon removing gloves or other PPE.
Law enforcement personnel who have an exposure should be evaluated by their
occupational health program and may be able to finish their work shift before
starting home isolation.
If personnel and resources are available, it is most protective for law
enforcement personnel to stay at home until 14
days after
exposure to an individual with suspected or confirmed COVID-19 if the exposure
was prolonged (10 minutes or more) or if the exposure was of concern (e.g.,
the individual coughed into the face of the law enforcement officer). This
would best protect the health of the exposed worker, their co-workers, and the
general public.
However, if personnel and resources are not available, law enforcement
personnel (considered critical infrastructure workers) may be permitted to
work after exposure to ensure continuity of operations. To continue working,
the exposed worker should remain symptom-free, and the employer should put
into place the following prevention
strategies for the exposed worker:

Screen the worker for symptoms of COVID-19 (fever, cough, or shortness of breath) before each work shift
Regularly monitor the worker for symptoms, under the supervision of an occupational health program
Ensure the worker practices social distancing (remaining at least 6 feet away from others)
Ensure the worker wears a facemask (or cloth face covering if facemasks are unavailable) to protect others

If an exposed worker develops symptoms of COVID-19 (fever, cough, or shortness
of breath) and is still working, the employer should:

Send the worker home immediately and encourage them to follow CDC guidance for What to Do If You Are Sick.
Clean and disinfect surfaces in their workspace.
Follow CDC guidance to determine when the worker can return to work.

For more information, see CDC’s updated guidance for Implementing Safety
Practices for Critical Infrastructure Workers Who May Have Had Exposure to a
Person with Suspected or Confirmed
COVID-19.

Reviewer feedback on this answer:
This answer is for law enforcement but it seems like everything here would be relevant to fire fighters. I think this is an acceptable answer. There's also a lot of links to more info
This provides information for law enforcement officers, but the question is asking how fire fighters should protect themselves.

Reviewer ratings:
Acceptable
Bad

Answer passage (source: CDC):
page_title: FAQs for Wildland Firefighters
section_headers: What does CDC recommend for wildland firefighting personnel who have been in close contact (less than 6 feet) with a person with suspected or confirmed COVID-19?
section_content: If wildfire personnel have direct personal contact with an individual with
suspected or confirmed COVID-19, they should take the following actions:

Immediately perform hand hygiene (i.e., use alcohol-based hand sanitizers with at least 60% alcohol or wash hands with soap and water for at least 20 seconds).
Avoid touching eyes, nose, and mouth.
Clean and disinfect any clothing items or surfaces that were potentially exposed (coughed on, sneezed on, or exposed to body fluids) as soon as possible. 
Non-porous items can be disinfected using products that are EPA-approved for use against the virusexternal icon.
Porous items, like clothing and other reusable personal protective equipment (PPE), should be replaced as soon as possible. The potentially contaminated items should be laundered according to manufacturers’ recommendations using the warmest water available.
Gloves (e.g., nitrile or latex) should be worn when touching potentially contaminated items or applying disinfectants. Perform hand hygiene upon removing gloves or other PPE.



If personnel and resources are available, it is most protective for wildfire
personnel who were exposed to an individual with suspected or confirmed
COVID-19 to stay at home until 14 days after exposure if the exposure was
prolonged (10 minutes or more) or if the exposure was of concern (e.g., the
individual coughed or sneezed on the worker).
If personnel and resources are not available, wildfire personnel (considered
critical infrastructure workers) may be permitted to continue to
work after exposure to ensure continuity of operations. To continue working,
the exposed worker should be symptom-free, and the employer should use the
following prevention strategies:

Screen the exposed worker for symptoms of COVID-19 before each work shift.
Regularly monitor the exposed worker for symptoms, under the supervision of a qualified healthcare provider.
Ensure the exposed worker practices social distancing during his/her work shift by assigning tasks where he/she can still work but remain at least 6 feet away from others, if possible.
Ensure the exposed worker wears a facemask (or cloth face covering only if facemasks are unavailable) to protect others.

If an exposed worker develops symptoms of COVID-19 and is still working, the
employer should:

Provide a facemask for the worker to wear (if not already wearing one).
Send the worker to the medical unit, if available, for evaluation to determine if medical care is needed. If a medical unit is not available, encourage the worker to call a qualified medical provider for guidance.
Send the worker home if it is safe for the worker to travel and make sure the worker is wearing a facemask. If it is not safe for the worker to travel, isolate the worker from others on the crew and require the worker to wear a facemask.
Ensure the worker is provided with necessary supplies, including food, water, and hygiene items, while he/she is self-isolating.
Encourage the worker to follow CDC guidance for What to Do If You Are Sick.
Clean and disinfect any surfaces and areas the worker may have touched.
Follow CDC guidance to determine when the worker can return to work.


Reviewer feedback on this answer:
This answer is for wildlife personnel which seems like it would have different situations and rules than firefighters. I don't think this one would be as relevant to the person asking the question
This gives information for wild fire personnel specifically, while the question is asking how fire fighters in general should react.

Reviewer ratings:
Could be Improved
Could be Improved