Which countries can you quarentine before entering the USA? : immigration

This isn’t a propper immigration query, however relatable

My sister lives in USA and he or she is having a child. Since I’ve the tourism visa (B2) and it is her first child, she requested me to be there to help her in the course of the first weeks

Since I reside in Brazil, I’m presently not allowed to enter US based on theCDC journey restrictions

It says that “overseas nationals who’ve been in any of the next nations in the course of the previous 14 days might not enter the US.”

And the listing is:

• China

• Iran

• European Schengen space (Austria, Belgium, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland, Monaco, San Marino, Vatican Metropolis)

• UK (England, Scotland, Wales, Northern Eire)

• Republic of Eire

• Brazil

• South Africa

I did a little analysis and, to keep away from this restrictions, Brazilians are staying 14 days in a “secure nation” earlier than getting into USA, largely Mexico

Brazil > Mexico for 14 days > USA > Brazil

I seemed for flight tickets from Brazil to Mexico and they’re costly as hell, so I considered staying in different nations, like Costa Rica

By studying the CDC assertion above, it is secure to say that Costa Rica is a secure nation, however since US borders are tough, I wanna know if anybody right here did the 14-days-quarantine there (or know somebody who did it)

tl;dr My sister who lives within the US is having a child. Passengers from which nations are being allowed to enter USA with a vacationer visa?