Proplyene Glycol is an additive that is present in many dog foods to help with moisture content. In dog food it is an acceptable ingredient that the FDA considers as generally safe. If propylene glycol was present in high levels in dog food it could be toxic, however. Propylene Glycol is used in food to accomplish several things: 1  To absorb extra water and help keep food moist.  As a solvent for colors and flavors in the food.
What is Diphtheria? Diphtheria is caused by the bacterium Corynebacterium diphtheriae. This germ produces a toxin that can harm or destroy human body tissues and organs. One type of diphtheria affects the throat and sometimes the tonsils. Another type, more common in the tropics, causes ulcers on the skin. Diphtheria affects people of all ages, but most often it strikes unimmunized children.
The actual disease is caused when the bac-teria release a toxin, or poison, into a person's body. How does diphtheria spread? Diphtheria bacteria live in the mouth, throat, and nose of an infected person and can be passed to oth-ers by coughing or sneezing.ccasionally, transmis-sion occurs from skin sores or through articles soiled with oozing from sores of infected people. How long does it take to show signs of diphtheria after being exposed? The incubation period is short: 2â5 days, with a range of 1â10 days.