What disease does Streptococcus dysgalactiae cause?
The former expresses Lancefield group C or G antigen while the latter has Lancefield group C or L antigen [1]. The vast majority of human infections belonging to Streptococcus dysgalactiae have been associated with SDSE including pharyngitis, skin and soft tissue infections, bacteremia, and endocarditis.
Is Streptococcus dysgalactiae contagious to humans?
Streptococcus dysgalactiae subspecies dysgalactiae is almost exclusively an animal pathogen. However, a few casuistic reports of human zoonotic infection have been documented.
What is Streptococcus dysgalactiae SSP equisimilis?
Streptococcus dysgalactiae subsp. equisimilis (SDSE) belongs to β-hemolytic streptococci and possesses Lancefield group C or G antigens (rarely, A antigen; Takahashi et al., 2011). SDSE is recognized as a common colonizer of the pharynx, skin, gastrointestinal tract, and female genital tract (Yung et al., 2019).
How do humans get streptococcus?
These bacteria are spread by direct contact with discharges from the nose and throat of infected people or by contact with infected wounds or sores on the skin. The risk of spreading the infection is highest when a person is ill, such as when people have “strep throat” or an infected wound.
Why do I keep getting strep C?
Compromised Immune System: In people who have an underlying condition that weakens the immune system, even a relatively simple bacterial infection like strep throat can be prone to recurring again and again.
Is Streptococcus zooepidemicus contagious?
zooepidemicus because S. equi is highly contagious from horse to horse, is typically horse-specific, is always considered pathogenic (causing signs of disease), and is usually limited to an infection of the upper respiratory tract.
What kind of bacteria is Streptococcus equisimilis?
Streptococcus equisimilis. Streptococcus equisimilis is a species of Streptococcus, initially described by Frost in 1936. As a result of several DNA hybridization studies in 1983, the species was merged into Streptococcus dysgalactiae. Subsequently, S.dysgalactiae was divided into the subspecies Streptococcus dysgalactiae subspecies equisimilis
When did Streptococcus dysgalactiae become a subspecies?
As a result of several DNA hybridization studies in 1983, the species was merged into Streptococcus dysgalactiae. Subsequently, S.dysgalactiae was divided into the subspecies Streptococcus dysgalactiae subspecies equisimilis and Streptococcus dysgalactiae subspecies dysgalactiae.
What kind of infections does SSP equisimilis cause?
S. dysgalactiae ssp equisimilis and S.pyogenes share virulence factors. They are also implicated in mono- and polymicrobial infections of the skin and soft tissues, pharyngitis, bacteremia and endocarditis, septic arthritis and osteomyelitis, puerperal infections, and meningitis.
What kind of infections can streptococci cause?
These streptococci frequently cause infections of the throat and skin and soft tissues. Moreover, they may invade the bloodstream and disseminate widely to many deep tissue sites, including the endocardium.