Question: Should I use soap and hand-washing or hand sanitizer to prevent infection with COVID19?

Answer passage (source: CDC):
page_title: Frequently Asked Questions
section_headers: Preparing Your Home and Family for COVID-19
Should I make my own hand sanitizer if I can’t find it in the stores?
section_content: CDC recommends handwashing with soap and water for at least 20 seconds or,
using alcohol-based hand sanitizer with at least 60% alcohol when soap and
water are not available. These actions are part of everyday preventive
actions individuals can take to slow the spread of respiratory
diseases like COVID-19.

When washing hands, you can use plain soap or antibacterial soap. Plain soap is as effective as antibacterial soap at removing germs.
If soap and water are not readily available, you can use an FDA-approved alcohol-based hand sanitizer that contains at least 60% alcohol. You can tell if the sanitizer contains at least 60% alcohol by looking at the product label.

CDC does not encourage the production and use of homemade hand sanitizer
products because of concerns over the correct use of the ingredientsexternal
iconexternal icon and the need to
work under sterile conditions to make the product. Local industries that are
looking into producing hand sanitizer to fill in for commercial shortages can
refer to the World Health Organization guidancepdf iconexternal iconpdf
iconexternal
icon.
Organizations should revert to the use of commercially produced, FDA-approved
product once such supplies again become available.

To be effective against killing some types of germs, hand sanitizers need to have a strength of at least 60% alcohol and be used when hands are not visibly dirty or greasy.
Do not rely on “Do It Yourself” or “DIY” recipes based solely on essential oils or formulated without correct compounding practices.
Do not use hand sanitizer to disinfect frequently touched surfaces and objects. See CDC’s information for cleaning and sanitizing your home.

See FAQs about hand hygiene for healthcare personnel responding to
COVID-2019.

Reviewer feedback on this answer:
Gives direct answer to the question. Also gives use cases for both soap washing and hand sanitizer use.
It answers the question directly and provides further information about what type of hand sanitizers to use and to avoid.

Reviewer ratings:
Excellent
Excellent

Answer passage (source: CDC):
page_title: Frequently Asked Questions
section_headers: Cleaning and Disinfection
Is cleaning alone effective against the virus that causes COVID-19?
section_content: Cleaning does not kill germs, but by removing them, it lowers their numbers
and the risk of spreading infection. If a surface may have gotten the virus on
it from a person with or suspected to have COVID-19, the surface should be
cleaned and disinfected. Disinfecting kills germs on surfaces.

Reviewer feedback on this answer:
Does not directly address questions regarding soap versus hand sanitizer.  It talks more about general cleaning of virus in relation to COVID-19.
The answer does not have anything to do with using soap or sanitizers, but rather disinfection of surfaces.

Reviewer ratings:
Bad
Bad

Answer passage (source: CDC):
page_title: Frequently Asked Questions
section_headers: Preparing Your Home and Family for COVID-19
Should I use soap and water or a hand sanitizer to protect against COVID-19?
section_content: Handwashing is one of the best ways to protect yourself and your family from
getting sick. Wash your hands often with soap and water for at least 20
seconds, especially after blowing your nose, coughing, or sneezing; going to
the bathroom; and before eating or preparing food. If soap and water are not
readily available, use an alcohol-based hand sanitizer with at least 60%
alcohol.

Reviewer feedback on this answer:
It answers the question directly and provides information on how to wash hands correctly with either soap or sanitizer.
The answer does not explicitly point out which one to use. The original question is phrased more as an either or case.  The response does not clearly describe use cases other than saying use hand sanitizer if you don't have accesses to washing with soap and water.

Reviewer ratings:
Excellent
Acceptable