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Infections
Bacterial infections (for example, with streptococcus, staphylococcus, or pneumococcus)
Fungal infections
Parasitic infections (for example, malaria)
Viral infections (for example, hepatitis B and hepatitis C or HIV infections)
Vasculitis (blood vessel inflammation)
Cryoglobulinemia
Eosinophilic granulomatosis with polyangiitis
Granulomatosis with polyangiitis
Microscopic polyangiitis
Immune disorders
Goodpasture syndrome
Systemic lupus erythematosus (lupus)
Other causes
Hereditary nephritis
Drugs (for example, quinine, gemcitabine, mitomycin C, or certain chemotherapeutic drugs)
HIV = human immunodeficiency virus.