Over the course of the past few months, the number of undocumented Brazilians trying to enter the United States has greatly increased. 
According to the Border Patrol, the number of Brazilians apprehended at border crossings increased by 18,000 – a 600% increase – in 2020. 
Just in the San Diego region, the total has grown by a 1200 percent increase during the first half of 2021. 
These figures show an emerging new pattern. In general, Brazil has not been a country where its citizens have emigrated elsewhere in large numbers. 
Historically, Brazilians living in the United States without permission entered with valid tourist and student visas.
Recommended Links For More Information:
https://www.bataraimmigrationlaw.com/san-diego-family-immigration-petitions-success-story (Planning Ahead Prevents Deportation Of Brazilian Immigrant Scholar)
https://www.carlosbatara.com/omnitweet/brazilian-immigrants/ (Brazilian Immigrants In The United States)