Staphylococcus aureus causes much more serious infections than previously believed, a new Swedish research has found.
The finding has been reported in a thesis from the Sahlgrenska Academy at the University of Gothenburg, Sweden.
Author Gunnar Jacobsson said: "The infection can be hard to detect as it doesn't always result in a fever.
"Now that we know that it is so common, we have to be more observant with patients who have non-specific signs of infection such as a rapid pulse and difficulty breathing."
Vaccination against this bacterial infection is ineffective since the resultant antibodies are unable to protect against new infections.
However, the thesis has a slightly different take.
Jacobsson explained: "Those patients who had lower levels of antibodies were more likely to develop complications and die...So it would seem that the antibodies do play some role in the body's defence system, and that a vaccine would perhaps not be without some effect."
Staphylococcus aureus bacteria are commonly found human skin and in the nose but here they are not dangerous. Infection is often caused when they enter the bloodstream through wounds