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Immunology and Allergy
Immunology and Allergy

Referral parameters

REFERRAL PARAMETERS  for the Immunology Clinic referral criteria and pre-visit requirements
ALTERNATE  SITES FOR CARE and contact information

General Information

Phone Number:

General inquiries

Administrative Staff - Jessy DeBraganza



Fax Number:




Main Floor Black Wing
Clinic 9

555 University Avenue
Toronto, Ontario
M5G 1X8

Contact Person:

General Inquiries regarding appointments
Immunology; for patient concerns: Brenda Reid RN, MN



Clinic Hours:

Immunology: Wed.12.30 p.m - 4 p.m.


How to make a referral

  • All patients require a referral to visit our clinic.
  • If you are a health-care professional, log in to eCHN to submit your referral. From your eCHN account, you will be seamlessly connected to SickKids e-referral platform, EpicCare Link.
  • Learn more about our referral process.
  • For urgent referrals only (same day referrals), contact eCHN’s Helpdesk directly 416-813-7998 or 1-877-252-9900, or by email at helpdesk@echn.ca. On weekends and after 6 p.m. on weekdays, please contact the Fellow on call via SickKids Locating at 416-813-1500.

Referral Parameters

To view referral criteria and pre-visit requirements, select the most appropriate item from the list below.

Immunology/ Primary Immune Deficiency

Referring professionals accepted


Patient group parameters

1.  Diagnosis and management of patients with suspected primary immune deficiency including:

  • Recurrent, persistent, unusual or overwhelming infections
  • Family history of immune deficiency, infections, autoimmunity, or malignancy
  • Genetic abnormalities associated with immune deficiency.
  • Syndromes associated with immune deficiency.
  • Recurrent fever
  • Persistent lymphadenopathy and hepatosplenomegaly

2.  Lymphoid malignancies and/or lymphoproliferative disorders prior to initiation of chemotherapy


Requirements pre-visit

Please include with the referral:

  • Detailed patient history of reason for referral
  • Detailed history of infections (type of infections, frequency of infections, need for antibiotic treatment, objective documentation of the infections)
  • Prior relevant medical evaluations.
  • Presence of allergic, autoimmune or malignant diseases.
  • Current and recent medications.
  • Any immune modulating treatment within recent 3 months (including intravenous immunoglobulin, systemic steroids, chemotherapy, radiotherapy, etc).
  • Immunization records.
  • Growth parameters
  • Recent complete blood count with differential count, immunoglobulin levels.
  • Detailed history of fever (fever diary) if applicable


Additional information

(if available)

Please include with the referral:

  • Results of any previous tests (e.g. X-rays, CT scans, pulmonary function, cultures, etc.)
  • Family history of recurrent or unusual infections.
  • Family history of autoimmune or malignant diseases.

Time Frame for Initial Visit

  • Patients with a high suspicion of Severe Combined Immune Deficiency or hypogammaglobulinemia are seen within 1- 2 weeks. Please contact the Immunology Fellow on call at 416 813-1500 to discuss urgent referrals.
  • Other immunological issues: 12-16 weeks


Initial Visit may include

  •  History and Physical exam
  • Blood work
  • Review of Vaccination (therefore bring your Vaccination card)
  • Skin Testing
  • Genetic analysis
  • Diagnostic Imaging
  • Pulmonary Function Testing
  • Patient and family education

Age limit

Up to 18 years of age.  Exceptions may be made for suspected Primary Immune Deficiency (i.e. common variable immunodeficiency).

Pre-visit education material and instructions

  • Welcome to Our Clinics Pamphlet  
  • Confirmation of appointment letter (mailed or faxed by clinic if time frame permits)