By upu on June 8, 2011. Bacterial infection in stomach is a common infection. As the name suggests, it is caused by bacteria, this infection can be contracted when you eat or drink contaminated food or water, or if you are in close contact with bacteria infested object, or a person.ommon symptoms of bacterial infection in stomach are: 1  Pain in stomach with cramps in the stomach. 2  Diarrhea. 3  Gastritis, with retrosternal burning and waterbrash. 4  Dark or black color of stool. 5  Cramps in abdomen. 6  Stomach ulcer. 7  Aggravation of pain in stomach after intake of food. 8  Vomiting and nausea. 9  Weight loss. 10  General feeling of tiredness. 11  Fever.
P. carinii pneumonia is the most common life-threatening opportunistic infection in AIDS patients, accounting for 52% of primarily diagnoses.' Infectious agents involving the central nervous system include mycobacteria, Toxoplasma gondii, Aspergillus organisms, Cryptococcus neoformans, and Candida albicans.
Thyroid disease is the most common autoimmune disease encountered. Second on the list is Sjogern's syndrome and the list continues from there. The National Institutes of Heal â¦ th assume that there are at least 80 different types of autoimmune diseases and more diseases are added to the list everyday.