Osteoarthritis (OA) is caused by aging joints, injury, and obesity. OA symptoms include joint pain and stiffness. Treatment depends on the affected joint, including the hand, wrist, neck, back, knee, and hip, and involves medication and exercise. If you are overweight, weight loss may improve OA symptoms.
The majority of foodborne illnesses are caused by harmful bacteria and viruses.2 Some parasites and chemicals also cause foodborne illnesses. Bacteria are tiny organisms that can cause infections of the GI tract. Not all bacteria are harmful to humans.
Bacteria and Viruses. Bacteria and viruses are the most common cause of food poisoning. The symptoms and severity of food poisoning vary, depending on which bacteria or virus has contaminated the food. The bacteria and viruses that cause the most illnesses, hospitalizations, and deaths in the United States are: Salmonella.