Question: What is the nature of the spread of COVID-19?

Answer passage (source: CDC):
page_title: Frequently Asked Questions: Funeral and Burial Services for American Indians and Alaska Natives
section_headers: Coronavirus Disease 2019 Basics
What is COVID-19?
section_content: Coronavirus Disease 2019 (COVID-19) is a new disease, and we are still
learning about how it spreads and the severity of illness it causes. The
virus that causes COVID-19 is believed to spread person-to-person between
people who are in close contact (being within about 6 feet) with one another.
Some people without symptoms may be able to spread the virus.
The virus likely spreads primarily through saliva or mucus droplets produced
when an infected person coughs, sneezes, or talks. This is somewhat like how
the flu (influenza) and other infections such as the common cold spread.
These droplets can land in the mouths or noses of people who are nearby or
possibly be breathed in. Droplets can remain on surfaces such as countertops
and doorknobs for hours to days.

Reviewer feedback on this answer:
The answer details the current knowledge for the mechanism of spreading and the person-to-person nature of the spread and mentions that we are still learning about how the disease spreads.
This answer explains the different ways that COVID-19 can spread from one person to another, and defines the timeline for how long the virus can spread via surfaces.

Reviewer ratings:
Excellent
Excellent

Answer passage (source: CDC):
page_title: How COVID-19 Spreads
section_headers: The virus spreads easily between people
section_content: How easily a virus spreads from person-to-person can vary. Some viruses are
highly contagious, like measles, while other viruses do not spread as easily.
Another factor is whether the spread is sustained, which means it goes from
person-to-person without stopping.
The virus that causes COVID-19 is spreading very easily and sustainably
between people. Information from the ongoing COVID-19 pandemic suggest that
this virus is spreading more efficiently than influenza, but not as
efficiently as measles, which is highly contagious.

Reviewer feedback on this answer:
The answer says that the virus spreads very easily, but does not detail the mechanism of the spread.
This gives some information about how fast the virus spreads, but doesn't explain how it spreads from one person to another.

Reviewer ratings:
Could be Improved
Could be Improved

Answer passage (source: CDC):
page_title: Frequently Asked Questions
section_headers: How COVID-19 Spreads
How does the virus spread?
section_content: The virus that causes COVID-19 is thought to spread mainly from person to
person, mainly through respiratory droplets produced when an infected person
coughs or sneezes. These droplets can land in the mouths or noses of people
who are nearby or possibly be inhaled into the lungs. Spread is more likely
when people are in close contact with one another (within about 6 feet).
COVID-19 seems to be spreading easily and sustainably in the community
(“community spread”) in many affected geographic
areas. Community spread means people have been infected with the
virus in an area, including some who are not sure how or where they became
infected.
Learn what is known about the spread of newly emerged
coronaviruses.

Reviewer feedback on this answer:
The answer directly addresses the mechanism and conditions by which the virus spreads and between whom the virus spreads (person to person).
The first paragraph in this answer states an exact process for how COVID-19 is spread from one person to another, and then it gives some links with more information regarding coronavirus spread. However, there are other known ways the virus can spread that are not mentioned here.

Reviewer ratings:
Excellent
Acceptable