Infectious Disease
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Infectious Disease Referrals
View the referral guidelines

We understand serious infections can pose serious risks to children and can spread quickly in communities. While infection can spread rapidly in a small child, the involvement of a pediatric infectious disease specialist can make all the difference. CHOC infectious disease specialists are highly experienced, board-certified pediatric subspecialists who understand the changing nature of infectious disease and children.
What We Treat
As one of the top-ranked children’s hospitals in the nation for endocrinology by U.S. News & World Report, we are committed to providing the highest quality of care for children and teens with endocrinology issues.
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Early Intervention For Life-Threatening Conditions
- Infectious diseases (including multi-resistant bacteria)
- Congenital and perinatal infections, including HIV
- Opportunistic infections in the immunocompromised patient
- Respiratory, viral and fungal infections
- Immunocompromised host
- Community outbreaks
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Outpatient Management for Chronic Conditions
- HIV – an accredited program serving the greater Orange County area
- Recurrent/periodic fever or fever of unknown origin
- Tuberculosis and other chronic infections
- Coccidiomycosis and other endemic fungal infections
- Travel medicine for children
- Infections in primary immune deficiencies
- Viral hepatitis
CHOC Pediatric Infectious Disease Physicians Earn Global Distinction for Excellence
The Pediatric Infectious Diseases Society (PIDS), the world’s largest organization dedicated to the treatment, control and eradication of infectious diseases affecting children, has honored two CHOC physicians, Dr. Antonio Arrieta and Dr. Jasjit Singh, with the designation of PIDS fellows. Only 12 clinicians from around the world received this distinction.
The designation recognizes clinicians who have achieved professional excellence and provided significant service to the profession.

Tips from our Experts
Cold and Flu
Influenza B: What parents should know
With influenza B cases on the rise, a CHOC expert offers advice to parents about the virus.
CHOC Health
Immunizations / Vaccinations
Measles outbreaks: What parents need to know
Measles is one of the most contagious infections. To prevent the spread of measles, about 95% or more of the population must be immunized.
CHOC Health
Infectious Disease
Parvovirus: What parents should know
With parvovirus B19 infection on the rise in the United States, a CHOC pediatrician provides an overview of the virus, the conditions it causes and…
CHOC Health
Healthcare
Compassionate-use therapies for a deadly infection save the life of cancer patient
CHOC infectious disease expert Dr. Erlinda “Chulie” Ulloa makes history nationally with investigational medication.
CHOC Pediatrica
COVID-19
CHOC study finds COVID-19 infection in newborns, though rare, may result in severe disease
CHOC’s study published in the Pediatrics journal finds that though COVID-19 infections in newborns are rare, they may cause severe disease.
CHOC Pediatrica
COVID-19
AAP publishes statement strongly discouraging off-label use of the COVID-19 vaccine for children under 12
This is based on experiences with the vaccine in older patients & due to differences in dose calculations between adults and children.
CHOC Pediatrica