This is a gram-positive anaerobic spore bearing bacilli that is present abundantly in the environment, vegetation, sewage and animal faeces. Perfringens food poisoning is most commonly caused by organisms producing type A enterotoxin. The other types of enterotoxin (B to G) do ...
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Escherichia coli belongs to the Enterobacteriaceae family. They are gram negative rods up to 3um in length, ferment glucose and wide range of sugars. Produce pink colonies on McConkey agar. Hemolytic activity on blood agar is a character of certain strains ...
Shigella is a species of enteric bacteria that causes disease in humans and other primates. Shigella is gram-negative rods that are non-motile and non-spore forming. The bacteria are primarily a human disease but has been found in some primates. Shigella are facultative anaerobes, similar to enterics ...
Campylobacteriosis is an infection caused by bacteria of the genus Campylobacter. There are approximately sixteen species associated with Campylobacter, but the most commonly isolated are C. jejuni, C. coli, and C. upsaliensis. The most prevalent species associated with human illness is C. jejuni. Campylobacter is also responsible ...
Listeria monocytogenes is the bacterium that causes the infection listeriosis. It is a facultative anaerobic bacterium, capable of surviving in the presence of oxygen. It can grow and reproduce inside the host’s cells and is one of the most virulent food-borne pathogens, ...
Vibrio cholerae 01 and 0139 are the bacterial agents for the disease. V. cholarae 01 includes two biotypes- classical and E1 Tor- each of which includes organisms of Ogawa, Inaba and rarely Hikojima serotypes. Epidemiology They are Gram-negative, facultative anaerobic, motile, non-spore forming rods that ...
Staphylococcus aureus is gram positive cocci that occur in singles, short chains and irregular grape like cluster. Only the strains that produce enterotoxin can cause food poisoning. Epidemiology The most important sources to foods are nasal carriers and individuals whose hands and arms ...