Purpuric Rash Meningococcal Septicaemia : Blanching red or brownish petechial rash or purpura.. Doctors call septicemia (a bloodstream infection) caused by neisseria meningitidis meningococcal septicemia or meningococcemia. The affected individual may first complain of an upper respiratory infection. A petechial or purpuric rash, a classic sign of meningococcal septicemia, is seen in 40% to 80% of cases of meningococcemia but may be difficult to detect . The purpuric rash in meningococcal septicaemia is a result of vasculitis (inflammation of the blood vessels). The complementary therapist's guide to red . Chills may develop, then skin rash on the arms or legs and the trunk. The nice meningitis (bacterial) and meningococcal septicaemia guideline1 identifies recognising. The affected individual may first complain of an upper respiratory infection. Blanching red or brownish petechial rash or purpura. Doctors call septicemia (a bloodstream infection) caused by neisseri