I hate to derail/not post a meme but before someone takes medical advice from this post.
The item from the CDC does not pertain to COVID-19 but for intestinal parasites:
This guidance is intended for the International Organization for Migration (IOM) physicians and other panel physicians who administer overseas predeparture presumptive treatment for intestinal parasites, but may also be referenced by U.S. medical providers caring for refugees who will be receiving presumptive treatment after they arrive in the United States.
https://www.cdc.gov/immigrantrefugeehealth/guidelines/overseas-guidelines.html