Phylogenetic studies indicate Shigella is more appropriately treated as a subgroup of Escherichia (see Escherichia coli#Diversity for details). Pathogenesis. Shigella infection is typically by ingestion. Depending on the host's health, fewer than 100 bacterial cells may cause an infection.Less common species, such as C. coli, C. upsaliensis, C. fetus, and C. lari, can also infect people. Campylobacter jejuni grows best at 37°C to 42°C and seems to be well-adapted to birds, which have an approximate body temperature of 41°C to 42°C and can carry the bacteria without becoming ill. These bacteria are fragile. H. pylori can damage the protective lining of the stomach and small intestine. This can allow stomach acid to create an open sore (ulcer). About 10% of people with H. pylori will develop an ulcer. Inflammation of the stomach lining. H. pylori infection can affect the stomach, causing irritation and swelling (gastritis). Stomach cancer. Skin infection: Staph infections on the skin occur when someone comes into contact with the Staphylococcus bacteria. The bacteria are contagious and usually enter the skin through a cut. Pus from a staph infection is contagious. You can be infected if you touch infected discharge or handle towels or other things that have the bacteria on them.
Infections due to E. coli ( Escherichia coli) bacteria can cause severe, bloody diarrhea . Sometimes they also cause urinary tract infections, pneumonia, meningitis, bacteremia (a bacterial infection in the blood), or sepsis (a dangerous full-body response to bacteremia). Some infections can lead to serious health problems, especially in very
Dr. Nipunie Rajapakse, a pediatric infectious diseases specialist at Mayo Clinic, says there are many strains of E. coli bacteria that may cause serious illness for those infected. "E. coli stands for Escherichia coli, which is a type of bacteria that can cause food or waterborne illness in people," says Dr. Rajapakse. The most common causes are bacteria, especially E. coli. Other common bacteria include: Salmonella. Cholera. Campylobacter jejuni. Shigella. Viral infections may include: Norovirus. Rotavirus. Astrovirus. Parasite infections may include: Giardia. Cryptosporidium. Cyclospora. Is traveler’s diarrhea contagious? The infection can spread from you Mbtddt.