Stephanie Masland Bohlen was operated on Friday at Samaritan Hospital, Agencia Brasil said, adding there was no risk of further foot injuries.
Masland Bohlen and her husband were approached by two unidentified people late Thursday as they stopped to adjust their GPS navigation system on a highway in Angra dos Reis, in the southern part of Rio state, according to local media.
When they tried to flee, Masland Bohlen was shot in the foot and her husband was unharmed.
A British tourist was shot and wounded in Angra dos Reis in August when she, her husband and their three children accidentally drove into a favela controlled by criminals.
The Rio area is one of the world's most famous tourist destinations but many favelas -- largely unregulated communities of working class Brazilians -- are public safety nightmares.
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