How to use erythrogenic in a sentence? Find typical usage patterns (collocations)/phrases/context for "erythrogenic" and check conjugation/comparative form for "erythrogenic". Mastering all the usages of "erythrogenic" from sentence examples published by news publications.
The Dead Sea has a hot desert climate (Köppen climate classification BWh), with year-round sunny skies and dry air. It has less than mean annual rainfall and a summer average temperature between . Winter average temperatures range between . The region has weaker ultraviolet radiation, particularly the UVB (erythrogenic rays).
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Scarlet fever affects a small number of people who have strep throat or streptococcal skin infections. The bacteria are usually spread by people coughing or sneezing. It can also be spread when a person touches an object that has the bacteria on it and then touches their mouth or nose. The characteristic rash is due to the erythrogenic toxin, a substance produced by some types of the bacterium.
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Bacteriophage T12 is a bacteriophage that infects the bacterial species Streptococcus pyogenes. It is a proosed species of the family Siphoviridae in order Caudovirales (viruses with head-tail structure).NCBI: Bacteriophage T12 (species) It converts a harmless strain of bacteria into a virulent strain. It carries the speA gene which codes for erythrogenic toxin A. speA is also known as streptococcal pyogenic exotoxin A, scarlet fever toxin A, or even scarlatinal toxin.
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Streptococcus pyogenes (pictured) The rash of scarlet fever, which is what differentiates this disease from an isolated group A strep pharyngitis (or strep throat), is caused by specific strains of group A streptococcus which produce a pyrogenic exotoxin. These toxin-producing strains cause scarlet fever in people who do not already have antitoxin antibodies. Streptococcal pyrogenic exotoxins A, B, and C (speA, speB, and speC) have been identified. The pyrogenic exotoxins are also called erythrogenic toxins and cause the erythematous rash of scarlet fever.
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Note that the name of the gene "speA" is italicized; the name of the toxin "speA" is not italicized. Erythrogenic toxin A converts a harmless, non-virulent strain of Streptococcus pyogenes to a virulent strain through lysogeny, a life cycle which is characterized by the ability of the genome to become a part of the host cell and be stably maintained there for generations. Phages with a lysogenic life cycle are also called temperate phages. Bacteriophage T12, proposed member of family Siphoviridae including related speA-carrying bacteriophages, is also a prototypic phage for all the speA-carrying phages of Streptococcus pyogenes, meaning that its genome is the prototype for the genomes of all such phages of S. pyogenes.
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