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The drug was contaminated with the spores of a common leaf mold — nobody knows how.

Five patients have died.

Compounding pharmacies, which provide up to 10 percent of U.S. pharmaceuticals, are more loosely regulated than traditional drug companies. As is common, NECC is licensed by a state pharmacy board, which doesn't have the staff to conduct regular inspections. The company has been cited for contamination problems in the past, as the Boston Globe reports.

FDA already has approved the use of electron beam technology as a pathogen intervention strategy to control the naturally occurring Vibrio vulnificus bacterial pathogen in shellfish.

Praveen said she and the other researchers also chose the viral pathogens as opposed to bacterial as they were more difficult to treat and also require a host species.

if a serving size of 12 raw oysters were contaminated with approximately 100 hepatitis A and human noroviruses, an e-beam dose of 5 kGy (kilograys) would achieve a 91 percent reduction of hepatitis A infection risks and a 26 percent reduction of norovirus infection risks.

pre-operative antiseptics have never been examined for infection risk. They were grandfathered into FDA approval because they were on the market long before the FDA began assessing such products, as a result of expert testimony that they would kill any microbes that contaminated them.  That assumption turns out to have been incorrect.

The industrial-size servings of food on a cruise ship with hundreds of passengers can be particularly worrisome, since once the virus enters the food it can spread rapidly. Food can also get more easily contaminated with the virus if it sits out for several hours, as is often the case with buffet-style meals.

And so many people being in one place eases the virus's spread. "In close quarters it doesn't get away, everything's concentrated," Zimring says.

The best defense against gastrointestinal disease, Zimring says, is to wash and sanitize your hands constantly

14,000 Americans

alert to illness among patients who have received injections of hundreds of other products

the number must run into the tens of thousands.

Cholera has killed more than 8,300 Haitians and sickened more than 650,000 in the earthquake-ravaged country, the poorest in the Western Hemisphere, since it first reappeared in October 2010.

Forensic studies, including one ordered by the United Nations, have identified the culprit bacteria as an Asian strain imported to Haiti by Nepalese members of the United Nations peacekeeping force, known as the United Nations Stabilization Mission in Haiti, which was first authorized in 2004 and maintains about 8,700 soldiers and police officers there, drawn from more than three dozen member states. The forensic studies have also linked the spread of the cholera to a flawed sanitation system at the Nepalese peacekeeper base, which contaminated a tributary that feeds Haiti’s largest river, used by Haitians for drinking and bathing.