Bacterial diseases - salmonella infections, Biology

Salmonella infections

The term salmonellosis is a used for several Salmonella infections of humans and animals caused by  Salmonella Enterica and S. Bongori. Salmonella Enterica is divided into 6 subspecies, viz. enterica, salamae, arizonae, diarizonae, houtenae and indica. (Names are retained only for subspecies enterica serovars. These names must no longer be italicised. The first letter is a capital letter. In clinical practice the subspecies name need not be indicated as only serovars of subspecies enterica bear a name, e.g. Typhimurium is serovars of subspecies enterica. The name Salmonella Typhimurium may be used for routine practice). The most common 'serovars' (strains with serological variation) that cause infections in humans and food animals belong to Salmonella Enterica subspecies enterica. Over 2,500 serovars are known. Some of these affect only certain species of animals while others occur in a wide range of species. Salmonella is capable of prolonged survival outside the intestine. There is concern over the increasing resistance of some serovars to antimicrobials. Most human salmonellosis infections are S. Enteritidis (which originates from infected poultry and eggs) and S. Typhimurium (occurs in a variety of animals, including turkeys). Other salmonellae are S. Thompson, S. Menston, S. Virchow  and S. Haddar. The S. Pullorum and S. Gallinarum strains are non-motile and highly host specific for poultry, whereas rest all salmonellae are motile and of zoonotic importance. The bacteria are fairly resistant to normal climate, surviving months in litter but are susceptible to normal disinfectants. Salmonellae are inactivated by direct exposure to sunlight, heat treatment, phenol, formalin, dichloride of mercury or potassium permanganate. Phenolic compounds are the most effective disinfectants under field conditions.

Posted Date: 9/18/2012 8:27:57 AM | Location : United States







Related Discussions:- Bacterial diseases - salmonella infections, Assignment Help, Ask Question on Bacterial diseases - salmonella infections, Get Answer, Expert's Help, Bacterial diseases - salmonella infections Discussions

Write discussion on Bacterial diseases - salmonella infections
Your posts are moderated
Related Questions
Once the decision to start drug treatment of hypertension is made, the aim should be to provide 24 hour BP control, with agents that would encourage patient adherence. The patient

What is PCR? How does PCR works? PCR, polymerase chain reaction, is a process to synthesize many copies of exact regions of a DNA molecule known as target-regions. Its inventor

Q. How is carbon dioxide made by producers and consumers? The Carbon dioxide is made by consumers and producers through cellular respiration.

Nucleic acid hybridization: This is a process by which a suitably labeled DNA or RNA from a known infectious agent is used to probe its complementary sequence unique to t

Q. Mention chemical agents available for sterilization? Various chemical agents available for sterilization are: Alcohols: ethyl alcohol, isopropyl alcohol, trichlorobuta

In the scientific competition against fixism what are the main arguments that favor evolutionism? The major arguments in favor of evolutionism are: paleontological, from the st

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

The standard free energy change and standard activation energy for four biochemical reactions are listed in the table below: A few interpretations are given below. Between thes

Explain the Metabolic Alterations during Cancer? As we have studied earlier, patients with advanced cancer experience profound anorexia, early satiety, changes in the structure

Define the Features of Phylum Nematoda? Phylum characteristics of Nematoda which are the world's most abundant multicellular organisms are as follows: 1. Nematodes occur in