Public baby changing tables help millions of traveling families by providing the convenience of a flat, private surface on which to change dirty diapers. When parents do not properly clean the table after use, it becomes evident that the “convenience” is being taken for granted.
Babies are extremely susceptible to infection and disease. Improper cleaning of baby changing tables assists in the spread of common colds as well as infectious diseases.
These issues are discussed and debated on online forums for parents including
www.daddytypes.com and www.babynet.com. Some parents resort to carry their own portable changing mat, which, it may not the best solution. 

According to Catharine Shaner, a pediatrician with the American Safety and Health Institute, a parent should Never put (his) child's bare bottom on a public diaper changing area unless (he is) able to disinfect the area. Children under two years of age could be exposed to the Streptococcus faecalis bacteria, which causes urinary tract infections, E coli, or rotavirus, a leading cause of childhood diarrhea and hospitalization. She added "It is wise to avoid using your own changing mat on public diaper decks, where it can become contaminated with surface bacteria and viruses. Putting it back into the diaper bag can spread germs to other items, such as toys, bottles, and pacifiers. Instead, purchase soft, disposable, cloth-like pads to put under the youngster's bottom to avoid any skin/surface contact in public changing areas, and dispose of the pad after use. USA Today (Society for the Advancement of Education),  August, 2002  

 

 

 

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Changing station in public restroom may contaminated with bacteria.

 

The long lines associated with public ladies’ rooms is nothing new. The situation is exacerbated for new mothers who desperately need to change their babies and are forced to wait in line.
In even so-called “family-friendly” restaurants, some restrooms do not come equipped with diaper changing tables which forces parents to search for a place to change their babies’ diapers sometimes causing them to choose the floor or the dining table.
On vacation, many tourist spots sadly lack restroom facilities, much less baby changing tables. Young couples are forced to find any suitable flat surface upon which to change their babies
In a men’s restroom, some new fathers are embarrassed to change their baby girls’ dirty diapers in a room full of strange men. They may resort to placing the baby on their laps while “sitting on the toilet” or performing a “standing diaper change” in a stall.
Parents were frustrated to learn the changing table in a public restroom was abused by its previous customer to such a degree that it was too filthy to put their baby down for changing.
When parents could not locate adequate restroom facilities in an outdoor park, they resort to changing baby’s diaper on the ground or any suitable flat surface upon which to change their babies.
A commercial changing mat, when placed on public diaper decks, may become contaminated with surface bacteria and viruses. Putting it back into the diaper bag can spread germs to other items, such as toys, bottles, and pacifiers. 
 In shopping malls, one is required   to traverse a significant distance to find the nearest   facility. In general, mall restrooms are strategically   located down long hallways in less trafficked areas   so they do not distract from the mall’s overall   design  and mood. In addition, restrooms may have   long lines or are unequipped for families.