A teenager in British Columbia, Canada has been hospitalized with a presumed case of H5N1 bird flu, the first detected human case in the country in the current outbreak.

The presentation, so brief as to be little more than a public service announcement, signals an abandonment of efforts to prevent emergence of a wider avian flu pandemic.

New CDC research suggests that a small but significant percentage of dairy farmers working near infected cows have recently contracted H5N1, often without knowing.