Question: What should immediate family members need to do?

Answer passage (source: Australia):
page_title: Physical distancing for coronavirus (COVID-19)
section_headers: Households
section_content: Australians should check their state or territory government
restrictions to find out
more about the restrictions in place where they live. As states and
territories move through the steps in the 3–step framework for a COVIDSafe
Australia, restrictions will reduce.
If you are allowed to have visitors at home, you still need to maintain 1.5
metres between people from different households. Keeping visitors to a minimum
will help to reduce the spread of the virus throughout the community.
If someone in your household is sick with cold or flu symptoms, you should:

care for the sick person in a single room, if possible
keep the number of carers to a minimum
keep the door to the sick person’s room closed. If possible, keep a window open
wear a surgical mask when you are in the same room as the sick person. The sick person should also wear a mask when other people are in the same room
protect at-risk family members by keeping them away from the sick person. If possible, find them somewhere else to live while the family member is sick
seek medical advice and have them tested for COVID-19


Reviewer feedback on this answer:
Clean and concise list of bullet points is provided as well as links for additional information should the answers given here not prove sufficient. Also provides information over what to do when someone is sick in the family which may be what the requester is referring to.
Has clear information about what immediate family members should do if someone in their household is infected.

Reviewer ratings:
Excellent
Excellent

Answer passage (source: Australia):
page_title: Government response to the COVID-19 outbreak
section_headers: Who manages the response
section_content: State and territory governments are mainly responsible for health matters.
When a major health issue like COVID-19 faces our country, they:

work together with the Australian Government
share information so they can provide the best possible care
ensure the response is consistent and integrated across the country

The Australian Health Protection Principal Committee (AHPPC) makes key
decisions and coordinates this response.
The AHPPC is made up of:

the Chief Health Officers from each state and territory
the Chief Medical Officer
representatives from key departments

It meets daily to assess the risk to Australia and recommend public health
actions. The AHPPC endorsed the Government’s emergency response plan.
The Australian Government has put together a team of widely respected
clinicians, led
by the Chief Medical Officer, to assist with the COVID-19 response.
Australia.gov.au
Visit Australia.gov.au to learn more about
COVID-19 support from all of government including financial support and advice
for businesses and employees, help for education providers, advice on domestic
and international travel and other community services.

Reviewer feedback on this answer:
Discusses what government officials need to do. Doesn't have any advice for families.
Question is rather broad as to what they are referring to when they ask what they "need to do?" However, all this answer provides is what the duties and responsibilities of the government are which will not help the requester at all.

Reviewer ratings:
Bad
Bad

Answer passage (source: Australia):
page_title: Coming to Australia
section_headers: I am immediate family of an Australian citizen or permanent resident
section_content: You are only considered to be an immediate family member if you are:

a spouse
a de facto partner
a dependent child/ren
a legal guardian.

All travellers arriving in Australia must undertake a mandatory 14-day
quarantine at designated facilities (for example, a hotel), in their port of
arrival.
You may need to provide information to the Department before travelling to
Australia.
Guardians
A guardian, in relation to a child, is a person who has responsibility for the
long-term welfare of the child and has all the powers, rights and duties that
are vested by law or custom in the guardian of the child, other than:

the right to have the daily care and control of the child; and
the right and responsibility to make decisions concerning the daily care and control of the child.

If you don’t have a visa
You can't come to Australia until you have a visa. Apply for a visa and
include proof (such as your marriage certificate, your birth certificate or
birth certificate for your children).
If you have a temporary visa (except for Partner and Child visa holders)
Use the enquiry form below to provide further information to the Department.
You should attach proof (such as your marriage certificate, evidence of your
de-facto relationship such as shared finances or property, your birth
certificate or birth certificate for your children). Do not travel until we
advise that you can.
Partner (subclasses 100, 309, 801, 820) and Child (subclasses 101, 102, 445)
visa holders can come to Australia. You do not need to request an exemption.
Prospective Marriage (subclass 300) visa holders can’t come to Australia at
the moment.
Apply online for an exemption or provide further information
Apply online
Travellers who have a compassionate or compelling reason to travel to
Australia can also use this form to apply for an exemption.

Reviewer feedback on this answer:
Answer provides definition of an "immediate family member" but it does not sound like the requester was inquiring about visas or travel. Unfortunately, due to question being so broad, this answer is not particularly helpful.
Provides a definition of "immediate family member," but doesn't have any advice for them.

Reviewer ratings:
Could be Improved
Bad