Health officials say six people so far have the variant, first found in the South American country.
Three are in England- and officials are desperately hunting for one person as they don't have their details.
LIVE UPDATES:
A family member watches as public funeral service workers remove the body of Amelia Dias Nascimento, 94, who died from complications related to COVID-19 in her home, in Manaus, Brazil.(AP)
"The individual did not complete their test registration card so follow-up details are not available," Public Health England, said.
The other two cases are people in Gloucestershire in the south west of England, who had been in Brazil, Public Health England, said.