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 case-fatality rate for diphtheria has changed very little during the last 50 years. The overall case-fatality rate for diphtheria is 5%â10%, with higher death rates (up to 20%) among persons younger than 5 and older than 40 years of age.Before there was treatment for diphtheria, the disease was fatal in up to half of cases. The incubation period of diphtheria is 2-5 days (range, 1-10 days).Diphtheria can involve almost any mucous membrane. For clinical purposes, it is convenient to classify diphtheria into a number of manifestations, depending on the site of disease:iphtheria once was a major cause of illness and death among children. The U.S. recorded 206,000 cases of diphtheria in 1921, resulting in 15,520 deaths. Starting in the 1920s, diphtheria rates dropped quickly in the U.S. and other countries that began widely vaccinating.