Tag Archives: Streptococcus pyogenes
Extrapolating antibiotic susceptibility for streptococci including the pneumococcus
This posting concerns betahaemolytic species of streptococci including S. pyogenes (Lancefield group A strep), S. agalactiae ((group B strep), S. dysgalactiae group (betahaemolytic large colony, groups C or G) (several species included) which are usually associated with pyogenic infection, especially of skin and soft tissue. S. pneumoniae (the pneumococcus ) is also considered. A key misunderstanding about […]
Flucloxacillin is highly effective against Streptococcus pyogenes (group A strep) and related species
A common myth – “Flucloxacillin and penicillin in combination are required to treat cellulitis” NOT TRUE: monotherapy is adequate.
AIMED - Let's talk about antibiotics 
Microlab comment: beta-haemolytic streptococci isolated from blood
Here is another one used for uncomplicated bloodstream infection events: Infections due to these species of streptococci are usually rapidly responsive to appropriate antibiotic therapy which can be of short duration with no minimum IV requirement as endocarditis is not a usual consideration. Penicillin resistance has not been documented and flucloxacillin is just as active (see […]