Evidence of hoarding in New York City
Meanwhile, the Centers for Disease Control and Prevention (CDC) reported today that sales of flu antivirals soared in New York City in the last week of October 2005, 7 weeks before any flu cases were confirmed in the area. The agency said the spike in sales probably signaled personal stockpiling by people worried about a flu pandemic.
The sales data came from New York state Medicaid records and from a retail pharmacy chain that reports certain prescription drug sales to the New York City Department of Health and Mental Hygiene, according to an article in the Mar 17 Morbidity and Mortality Weekly Report. About 34% of New York City residents receive Medicaid benefits, the article says.
The sales data show a major spike in the week of Oct 23 through 29. The pharmacy chain sold almost 1,000 prescriptions of the four available flu antiviralsoseltamivir, zanamivir, amantadine, and rimantadine. The Medicaid records showed close to 400 prescriptions for oseltamivir, zanamivir, and rimantadine. (Medicaid excluded amantadine from the flu category because it is also prescribed for Parkinson's disease.)
In previous years, strong sales of flu antivirals coincided with peaks in confirmed cases of flu, the CDC reports. But the October sales boom came 7 weeks before the first lab-confirmed flu cases in the New York area were reported in mid-December, the agency says.
The sales boom came amid heavy publicity about both avian and pandemic influenza. Romania, Russia, and China were reporting outbreaks in birds at the time, and the federal government was about to release its pandemic preparedness plan.
"Increased media attention to avian influenza in Asia and the resulting public concern might have produced the unprecedented demand for antiviral influenza medications in NYC before the start of the influenza season," the article says.
"These findings suggest that persons requested and/or their health-care providers prescribed antiviral influenza medications to create personal stockpiles for use in the event of an outbreak of avian influenza or an influenza pandemic."
The report notes that public health agencies and medical societies have discouraged healthcare providers from prescribing antiviral drugs for personal stockpiles, since global supplies are limited. But most of those recommendations were issued after the October sales spike, it says.