The presence of bacteria in the blood is called bacteraemia. The term septicaemia refers to a severe and often fatal infection of the blood in which bacteria multiply and release toxins in to the blood stream.
Bacteria that are associated with neonatal septicaemia include E.coli and other coliforms, spaphylococci and
haemolytic Group B streptococci.
In typhoid, salmonella typhi can be detected in the blood of 75-90% of patients during the first 10 days of infection and in about 30% of patients during the third week.
In chronic salmonellosis, bacteria are often more rapidly and successfully isolated from bone marrow, especially once antimicrobial treatment has been
started. Y. pestis can be isolated from the blood plague. The organism in highly infectious.
Commensal Neither blood nor bone has a normal microbial flora.
Collection and culture of Blood and Borne marrow
a serious condition, it is
to use media
will provide the fastest
of culture media
Blood and bone marrow require culturing immediately after collection, before clotting occurs.