helicobacter pylori infection is a bacterial cause of
Helicobacter pylori Helicobacter pylori, previously Campylobacter pylori, is a gram-negative, microaerophilic bacterium found usually in the stomach. It was identified in 1982 by Australian scientists Barry Marshall and Robin Warren, who found that it was present in a person with chronic gastritis and gastric ulcers, conditions not previously believed to have a microbial cause. It is also linked to the development of duodenal ulcers and stomach cancer. However, over 80% of individuals infected with the bacterium are asymptomatic, and it may play an important role in the natural stomach ecology.[7]
Conjunctivitis Common bacteria responsible for non-acute bacterial conjunctivitis are Staphylococcus, Streptococcus,[5] and Haemophilus. Less commonly chlamydia may be the cause.[6]