Friday, November 09, 2012

Study: Nothing soothing about baby's pacifier; it's teeming with bacteria, fungus, mold


Right now there are thousands of parents popping pacifiers, "seussies" or "seu seus" into their babies mouths...and breathing a collective sigh of relief...that is until they read about this study.

Researchers report that those beloved "binkies" are a festering hotbed of disease-causing bacteria, fungus and mold.


In fact, the same types of bacteria found on a common pacifier have been linked to cardiovascular disease, metabolic syndrome, allergies, asthma and autoimmune diseases, said study author Dr. Tom Glass, a professor of forensic sciences, pathology and dental medicine at Oklahoma State University.

Glass said the problem with pacifiers applies also to removable orthodontic appliances such as retainers and even athletic mouth guards and dentures. Pores in the plastic can capture fungi, bacteria, food and water, creating a perfect spot for bacterial and fungal growth and infection, he explained.

The study authors collected 10 pacifiers from healthy infants at a pediatric clinic. They chopped up the nipples and shields finely, and put them in laboratory dishes designed to allow any bacteria or fungi that was present on the pacifiers to grow.

After 24 and 48 hours, the investigators compared the growth around the used pacifiers to the growth in dishes in which chopped-up new, unused pacifiers had been placed.

While half of the 10 used pacifiers were lightly contaminated, the other 5 were heavily contaminated (with levels reaching as high as 100 million colony-forming units per gram).

The researchers cultured 40 different species of bacteria from the 10 used pacifiers. One pacifier was contaminated with four different strains of Staphylococcus aureus. Yet, the unused pacifiers were found to be sanitary (with colony growths in the dishes less than 100 colony-forming units per gram).

What was particularly concerning, said Glass, was that many of the bacteria growing from the used pacifiers were resistant to commonly used antibiotics such as penicillin and methicillin.

The development of such resistance to certain antibiotics does not cause the organism to be more infectious than other strains that have no antibiotic resistance, but it can make the infection more difficult to treat.

Glass doesn't recommend that parents use pacifiers to calm their babies and toddlers.

"After doing the study, I say why take a risk? The key is to recognize that pacifiers can cause illness," he said. "In the long run, it may be that what you do now [using a pacifier] may have a lot to do with whether a child ends up developing atherosclerosis or type 2 diabetes."

As if all that isn't bad enough, the scientists also add that the pacifiers can also grow a slimy coating of bacteria — called a biofilm — that actually alters the normal bacteria in a baby or toddler's mouth. That biofilm can spur inflammation and potentially increase the risk of developing gastrointestinal problems such as colic or even ear infections.

For those who still choose to use pacifiers, Glass recommends soaking them daily in a denture-cleaning agent and carrying extras so a dropped or soiled pacifier doesn't have to be replaced without first cleaning it thoroughly at home.

He also recommends throwing out pacifiers after two weeks of use because wear increases the bacteria-trapping porousness of the plastic.

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