However, SDSE lack several virulence factors, such as a cysteine protease (designated erythrogenic
toxin B); a hyaluronic acid capsule (hasA and hasB); and an inhibitor of complement activation (sic) (17), in addition to many superantigens (18,19).
staphylococcal toxic shock toxin, streptococcal erythrogenic
toxin), viruses (Epstein-Barr virus, parvovirus, human immunodeficiency virus (HIV)-2) or ubiquitous microorganisms that cause clinically manifested disease in genetically predisposed individuals.
Since PV-B19 is a hematopoietic, principally an erythrogenic
virus, anemia is the most frequent hematologic finding of PV infection.
Examples of lysogenic conversion occurs in certain strains of Streptococcus pyogenes carrying a prophage capable of producing erythrogenic
toxin (the toxin that causes scarlet fever) and certain strains of Vibrio cholerae that carry a prophage that can produce cholera toxin.
Barium, Be, Co, and Sr depletion result in depressed growth, reduced calcification of bones and teeth, and even evidence of hypoplasia within erythrogenic
tissue and bone marrow (Underwood 1971, Curzon 1983a, d).
Scarlet fever is caused by circulating erythrogenic
toxin that is produced by group A hemolytic Streptococcus and in fewer instances, certain strains of staphylococcus (Graham & Uphold, 1994).
7] Usually, if a rash caused by streptococcal erythrogenic
toxin appears, it begins 24 to 48 hours after the onset of the pharyngitis.
Strepto coccal outbreaks and erythrogenic
toxin type A.
toxin genes: Detection by polymerase chain reaction and association with disease in strains isolated in Canada from 1940 to 1991.
In an earlier study, we identified several antigenically distinct streptococcal erythrogenic
toxin genes and their distribution among GAS isolates (20).