Emailed Health Warnings: Hoax or Fact?
Is that email message alerting you to a new health hazard bogus or valid?
3. Bananas From Costa Rica Make You Sick?
This email, first circulated in 2001, claims Costa Rican bananas were linked
to cases of necrotizing fasciitis -- better known as the life-threatening
"flesh-eating bacteria" disease.
The CDC web site has a page called "Health Related Hoaxes and
Rumors" where it posts information for the public. After an investigation
on the banana rumor, the CDC labeled the emailed warning false, noting that the
bacteria that cause the disease often live in the human body and the typical
transmission route is person to person. The bacteria can't survive long on a
banana surface, the experts point out.
4. Identify Stroke by a Simple Test?
The email says even nonmedical people can figure out if a person is having a
stroke (and needs immediate care) with a simple test: Ask the person to smile,
raise his or her arms and keep them up, and repeat a simple sentence.
This information is true, according to Buhler. He tracked down a study
presented at the American Stroke Association meeting in 2003. Researchers found
that the test, used for years by medical personnel, was also successfully
performed by bystanders. They could detect weakness in the face or limbs and
slurred speech -- all signs that immediate help is needed.
5. Tampons Contain Asbestos ?
This email warning first surfaced in the late '90s, but like other health
warnings may resurface. The alert alleged that tampons are contaminated by
asbestos and dioxin during their manufacture and that rayon fibers in them
cause toxic shock syndrome, a rare but potentially life-threatening disease
caused by a bacterial toxin. The asbestos was added, so the story goes, by
manufacturers because it promotes excessive bleeding and would be good for
According to the FDA, the warnings are not supported by scientific evidence.
Tampon use and toxic shock syndrome are linked, but experts do not know the
6. Microwaving Foods in Plastic Containers or Wrap Is Harmful?
If you microwave food in plastic containers or plastic wrap, chemicals will
leach out and exposure can cause cancer and reproductive problems, so the email
Microwave-safe containers and plastics are generally safe. The FDA regulates
plastic containers and other materials that come into contact with food,
testing the migration of chemicals from the products. The level of migration
has to be found to be within a margin of safety before a container or wrap is
approved for microwave use. "In general, scientific reviews have shown no
health effects from low levels of personal exposure, such as microwave
containers," says James Kapin, a chemical safety consultant in San Diego
and past chairman of the American Chemical Society's division of chemical
safety. However, one chemical sometimes found in microwave-approved containers
-- Bisphenol A, or BPA -- is currently under scrutiny by an independent panel
of scientists convened by the National Institutes of Health. The scientists are
focusing on whether exposure to BPA, commonly found in plastic water bottles
and baby bottles, raises risks of reproductive or development problems.