When a child has an abnormal newborn screening result, recurrent or unusually severe infections, persistent lymphopenia, unexplained inflammation, or clinical features suggesting an inborn error of…
A titer drawn two weeks after a vaccine series can look non-reactive. In an immunocompromised child, that single result…
The question of live vaccine timing after pediatric IVIG is not answered by a single number. The interval depends on…
Roughly a third of the pediatric patients referred to my trial coordination desk arrive at the immunosuppression…
California's newborn screening program pushed 3,252,156 infants through T-cell receptor excision circle (TREC) testing…
When a young boy presents with bruising, petechiae, nosebleeds, or an unexpectedly low platelet count, immune…
The minimum age for risk-based MenACWY vaccination can be 2 months. The minimum age for MenB and pentavalent MenABCWY…
When a child has recurrent pneumonia, deep bacterial or fungal infections, unusually persistent lymphadenitis, or…
Reported overall survival after hematopoietic stem cell transplantation in congenital athymia is approximately 41%…
For a child with anatomic or functional asplenia, vaccination is not simply a matter of completing the routine…
A positive TREC newborn screening result for severe combined immunodeficiency is a referral, not a verdict — and the…
For families considering a pediatric gene therapy clinical trial, the most difficult part is often not finding a study…
Severe congenital neutropenia (SCN) is defined by a persistent absolute neutrophil count (ANC) below 500 cells/µl…
A child may have received every routine vaccine on schedule before cancer treatment and still need a carefully planned…
When a child presents with recurrent sinopulmonary infections, failure to thrive, or unusual autoimmune phenomena, the…
The FDA reports an approval rate of approximately 99% for submitted Expanded Access Program applications, with more…
Pediatric systemic lupus erythematosus is rarely a condition that can be managed with one prescription or a short…
A child with a 22q11.2 deletion may be listed in the chart as having DiGeorge syndrome, but that label does not answer…
For children with asthma, annual influenza vaccination is not optional risk management. Influenza can trigger acute…
An abnormal newborn SCID screening result is urgent, but it is not, by itself, a diagnosis of severe combined…
A pediatric hematopoietic stem cell transplant (HSCT) rarely begins on the day the cells are infused. By the time the…
A single oral corticosteroid dose, typically prednisone or prednisolone at 1 mg/kg at flare onset, resolves fever…
For families living with an immunocompromised child, the rotavirus vaccine can create an uncomfortable contradiction…
Combined TREC/KREC newborn screening has identified severe T- and/or B-cell immunodeficiencies at a prevalence of 8.13…
A denial of pediatric biologic therapy is rarely a simple statement that a child is “not eligible” for treatment. More…
The 2025 STOP-JIA trial results confirmed what many of us in pediatric rheumatology had suspected for years: earlier…
A pneumococcal vaccine schedule for an immunocompromised child is defined by two variables: the child’s underlying risk…
The conversation I keep having with genetics counselors goes something like this: a couple arrives after losing a first…
Intravenous and subcutaneous immunoglobulin replacement constitute the two established administration routes for…
Approximately 50 to 60 percent of positive results on standard skin prick tests (SPT) and serum-specific IgE (sIgE)…
When I sit down with a family after a fresh CGD diagnosis, the most common opening question is not "what is this…
A single dose of a long-acting monoclonal antibody such as nirsevimab provides passive protection against severe…
When a child has recurrent, unusually severe, or difficult-to-explain infections, the clinical challenge is not simply…
The deferral question lands on my desk roughly once a week. A family has a child on monthly IVIG for a primary antibody…
For moderate-to-severe pediatric atopic dermatitis, the treatment distinction is no longer simply topical therapy…
When parents or clinicians consider separating combination vaccines into individual injections, the discussion often…
The 2017 FDA approval of tisagenlecleucel for pediatric and young adult relapsed/refractory B-cell ALL was supposed to…
For a child, stepping down asthma controller medication is usually considered only after at least six months of stable…
Wiskott–Aldrich syndrome has an estimated incidence of approximately 1 in 250,000 live male births. It is an X-linked…
Vaccine titer testing for immunocompromised children can answer an important clinical question: has the child produced…
In my experience running pediatric immunology cohorts, the difference between a clean flow cytometry readout and a…
The 2026 American College of Rheumatology guidelines materially change several juvenile idiopathic arthritis treatment…
Genetic testing can clarify a child’s immune disorder, change the management pathway, and sometimes prevent years of…
In July 2026, the BMJ published the SPIRIT-C 2026 and CONSORT-C 2026 extensions — a set of new reporting expectations…
An abnormal SCID newborn screen is an urgent finding, but it is not the same as a diagnosis of severe combined…
For children with persistent allergic rhinitis, antihistamines and nasal sprays can control symptoms, but they do not…
A 76.9% reduction in severe acute respiratory infection (SARI) among infants was reported in one study when household…