The use of CBX does not require the submission of a negative COVID-19 test. The guidelines established by the CDC (Center for Disease Control and Prevention, for its acronym in English) that establish a requirement for a negative test for COVID-19, apply to passengers arriving directly at a United States airport on international flights.
At the crossing of the bridge, they do not ask to bring tests of Covid-19 for children, it is best that they wear face masks 😷, and although there is disinfectant, it would not hurt if you would take yours.
No, at land crossings, only adults must carry their proof of complete vaccination, children must not present any proof
They do not ask children
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