Email this page To: From: Subject: Message: Infections in Immunocompromised Patients - The body’s immune system uses a number of defenses to prevent or get rid of infection. Infection can be caused by a variety of organisms such as bacteria, viruses or fungi. - https://www.stjude.org/treatment/patient-resources/caregiver-resources/infection-tips/infections-immunocompromised-patients.html A summary of this page will be sent along with your message I am a referring physician Yes, I would like to receive email updates. Send Email Your message has been emailed successfully. Thank you for your interest in St. Jude Children's Research Hospital.