Are there any after-effects of septicaemia?

Usually not: Sicker patients with shock and other major complications requiring intensive care, might experience prolonged weakness, cognitive defects, sleep disturbances, and lasting organ dysfunction.

Possibly: The range goes from complete cure to severe complications and even death.

Maybe: If you have not had septic shock or multi-organ system failure, or any other complication of septicemia, you should recover completely.

Difficult to answer: Septicemia can be many different conditions, it simply means total body inflammation triggered by an infection by bacteria in blood after effects are depedent on patients age, how quickly the treatment was started, coexisting conditions like hiv, diabetes, kidney disease, heart disease etc and if besides positive blood culture systems are effected. So after effects are none to several and varies/condi.