Bacteria of different shapes, computer illustration showing three main shapes of bacteria - spherical (cocci), for example, Staphylococcus aureus; rod-like, for example, Mycobacterium tuberculosis; and spiral, for example, Campylobacter jejuni.

Helicobacter pylori bacteria. Computer illustration of Helicobacter pylori bacteria in a human stomach. Formerly known as Campylobacter pyloridis, these are spiral-shaped Gram-negative bacteria. The terminal flagella (hair-like structures) are used...

Helicobacter pylori bacteria, illustration

Campylobacter jejuni bacterium, computer illustration. This motile, Gram-negative bacterium possesses a long flagella at one end that is uses for locomotion. It can grow in environments where little oxygen is present. It is a common cause of...

Campylobacteriosis, conceptual illustration. Campylobacter jejuni is a motile, Gram-negative bacterium with a long flagella at one end that is used for locomotion. It can grow in environments where little oxygen is present. It is a common cause of...

Helicobacter pylori bacteria, illustration

Campylobacteriosis, conceptual illustration. Campylobacter jejuni is a motile, Gram-negative bacterium with a long flagella at one end that is used for locomotion. It can grow in environments where little oxygen is present. It is a common cause of...

Campylobacter jejuni bacterium, computer illustration. This motile, Gram-negative bacterium possesses a long flagella at one end that is uses for locomotion. It can grow in environments where little oxygen is present. It is a common cause of...

Coloured scanning electron micrograph (SEM) of bacteria cultured from a used dishcloth. Dishcloths can have six times as many bacteria as toilet handles according to some studies. They often harbour harmful E. coli bacteria, which can cause diarrhoea...

Illustration of a gastric (stomach) ulcer with a close-up view of Helicobacter pylori bacteria. Gastric, or peptic, ulcers are erosions of the mucosal lining of the stomach. Helicobacter pylori is a curved, or spiral, Gram-negative bacilli with...

Campylobacter jejuni bacterium, computer illustration. This motile, Gram-negative bacterium possesses a long flagella at one end that is uses for locomotion. It can grow in environments where little oxygen is present. It is a common cause of...

Campylobacteriosis, conceptual illustration. Campylobacter jejuni is a motile, Gram-negative bacterium with a long flagella at one end that is used for locomotion. It can grow in environments where little oxygen is present. It is a common cause of...

Campylobacter bacteria