GSTM1 and Renal insufficiency: In May 2010 a 30-years-old African female patient with preexisting compensated renal failure was brought to the attention of the Infectious Disease Department for high fever, headache, abdominal pain, renal failure (serum blood urea nitrogen 35 mg/dl, creatinine 9.5 mg/dl), severe anemia (Hb 5 mg/dl), metabolic acidosis (arterial blood gas analysis: ph: 7.33; pCO2: 28 mmHg; HCO3-(c): 14,8 mmol/L), and high blood pressure 180/100.