Bacteriology

Staphylococcus aureus Virulence Factors

Last updated on May 30th, 2021Staphylococcus aureus is a notable human pathogen for a variety of infections; suppurative (pus-forming) infections, systemic illness and toxinoses. S. aureus has an extraordinary repertoire of virulence factors that allows […]

Bacteriology

Haemophilus Influenzae Virulence Factors

Last updated on May 30th, 2021Haemophilus influenzae is a pleomorphic, gram-negative coccobacillus that is divided into two groups: unencapsulated (non-typeable) and encapsulated. Encapsulated strains of Haemophilus influenzae are further classified into 6 different serotypes (a-f) […]

Virulence factors of S. pyogenes
Bacteriology

Streptococcus pyogenes Virulence Factors

Last updated on June 14th, 2021Streptococcus pyogenes is the leading cause of uncomplicated bacterial pharyngitis and tonsillitis commonly referred to as strep throat. Acute diseases associated with Streptococcus pyogenes occur chiefly in the respiratory tract (sinusitis, otitis), bloodstream (sepsis, endocarditis, meningitis), or theskin (impetigo, […]

Bacteriology

Neisseria meningitidis Virulence Factors

Last updated on May 20th, 2021Capsular polysaccharides Neisseria meningitidis strains are frequently encapsulated and 13 different capsular serogroups have been found so far. These capsular polysaccharides protect the meningococci from the action of phagocytic cells […]