1 All Physician and Physician Pro Bono licenses expire on April 30 of odd-numbered years. 2  All Physician Training licenses expire on August 31, 2015, are good for three years, and can only renew once (for a total of six years).  All Physician Assistant licenses expire on January 31 of even-numbered years.
Food-borne illness often shows itself as flu-like symptoms such as nausea, vomiting, diarrhea, or fever, so many people may not recognize the illness is caused by bacteria or other pathogens on food. Thousands of types of bacteria are naturally present in our environment.Not all bacteria cause disease in humans.or example, some bacteria are used beneficially in making cheese and yogurt. Bacteria that cause disease are called âpathogens.â When certain pathogens enter the food supply, they can cause food-borne illness. Only a few types cause millions of cases of food-borne illness each year.
Communicable diseases are diseases that are caused by bacteria, virus, fungus, or parasites. They are spread from person to person, or animal to person, through direct or indirect contact. Pathogens. A pathogen is an infection causing agent (germ). Pathogens are the cause of communicable diseases. Bacteria, viruses, fungus, and parasites can all be pathogens. The most common pathogens are bacteria and viruses. Causative agent- This is the disease causing agent (bacteria, virus, fungus, parasite).