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7.9.2 The Organism and its Characteristics L. monocytogenesis a Gram-positive, facultatively anaerobic, catalase- positive, oxid ...

reports of isolation of the organism from the faeces of, among others, cattle, pigs, sheep, chickens, turkeys, ducks, crustacean ...

for example) are often predisposing factors. Although not a common infection in AIDS patients, its incidence is around 300 times ...

increased interest in routine isolation of the organism from foods has led to its replacement by more rapid, selective enrichmen ...

kept sheep, two of whom had died of listeriosis. The cabbage had been grown in fields fertilized by fresh and composted manure f ...

This association with soft cheeses appears to be due to the cheese ripening process.L. monocytogenes survives poorly in unripene ...

to humans, but can also be transmitted to humans by milk and, to a lesser extent, by meat from tuberculous animals. Mycobacteriu ...

lymph nodes. The bacteria are engulfed by macrophages and are then isolated in nodules called tubercles or granulomas which are ...

similar effect. By 1944, all London’s milk was pasteurized and the death rate from abdominal tuberculosis in children was 4% of ...

been isolated from cattle, sheep, pigs, poultry, cats and dogs. It is not normally part of the human gut flora. 7.11.3 Pathogene ...

In 1856, the English physician William Budd concluded that each case of typhoid is epidemiologically linked to an earlier case a ...

were distinct species. The earliest to be described were given species epithets derived from the disease they caused, either in ...

structure of each salmonella, but does provide a workable scheme using antigens of diagnostic value. In the case of the more com ...

7.12.3.1 Enteritis. Gastrointestinal infections are predominantly as- sociated with those serotypes which occur widely in animal ...

virulence of the serotype, the susceptibility of the individual and the food vehicle involved. A number of outbreaks have occurr ...

After remission of symptoms, a carrier state can persist for several months and occasionally years as parts of the gall bladder ...

damaged. Such damage can result from any exposure to adverse condi- tions that might occur during food processing, such as chill ...

while restricting growth of other micro-organisms present. To this end a number of different media have been proposed employing ...

Easter and Gibson comprises a modified selenite–cystine broth contain- ing dulcitol and trimethylamine oxide (TMAO). Salmonellas ...

which is then consumed without adequate cooking, often after an intervening period in which microbial growth occurs. This was th ...