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.
By Mayo Clinic Staff. Food poisoning, also called foodborne illness, is illness caused by eating contaminated food. Infectious organisms â including bacteria, viruses and parasites â or their toxins are the most common causes of food poisoning. Infectious organisms or their toxins can contaminate food at any point of processing or production. Contamination can also occur at home if food is incorrectly handled or cooked.