Since 2003, the percentage of women filling prescriptions for drugs like Ritalin has increased nearly fivefold in some age groups.
The virus is widespread, and the vaccine is a poor match. But while some areas are hit hard, others have been spared, and deaths are not unusually common this season.
The contaminated product is likely no longer on store shelves, the public health agency says.
Fears of “Killer Aussie Flu” may be exaggerated, but this year’s predominant strain is the most dangerous, and the vaccine is a poor match for it.
Officials in Canada blamed the leafy green, but their American counterparts are still investigating the cause of an outbreak in the United States.
Shingrix, which begins shipping this month, is far more effective than the previous shingles shot. Experts recommend it for everyone over age 50.