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Yes, PH can be due to infections in some patients. However, an infection is not the cause of PH in most patients.

Specific types of infection can cause PH:

  • Infection of the bowels and liver by the parasite, schistosomiasis, is a very common cause of PAH around the world, but is very rare in Canada
  • Infection with HIV can cause PAH
  • Infection with hepatitis viruses (Hepatitis B and C) causes chronic hepatitis and cirrhosis of the liver, which can lead to PAH