Tuberculosis in Children

Classify the child as exposed, infected, or having suspected TB disease. TB infection is M. tuberculosis complex infection without clinical or radiographic evidence of disease; neither TST nor IGRA distinguishes infection from active TB. Before initiating preventive treatment, obtain a focused review for fever, cough, weight loss or failure to thrive, a complete examination including growth assessment and extrapulmonary findings, and a chest radiograph. PubMed+2PubMedTuberculosis in ChildrenPubMedTuberculosis in childhood: a systematic review of national and international guidelines - PMCPubMedTreatment of Latent Tuberculosis Infection - PMC

Escalate immediately for suspected CNS or disseminated disease: altered mental status, persistent vomiting, seizures, focal neurologic deficits, meningismus, cranial neuropathies, respiratory compromise, or a systemic illness with concern for miliary TB should trigger hospital-level evaluation. In suspected tuberculous meningitis, diagnostic assessment combines history and examination with chest radiography, CSF analysis, neuroimaging, and mycobacterial testing of CSF and non-CSF samples. CDCCDCTreatment Outcomes of Childhood Tuberculous Meningitis in a ...

Do not use a negative immunologic test as the sole exclusion test in an ill or immunocompromised child. IGRAs have little sensitivity advantage over TST in children overall, and both have reduced sensitivity in immunocompromised children. pediatrics aappublicationspediatrics aappublicationsInterferon-γ Release Assays for Diagnosis of Tuberculosis ...

For children aged 5 years or older in low-risk populations, CDC guidance favors IGRA over TST. The American Academy of Pediatrics recommends IGRA beginning at age 2 years based on observational data and expert opinion, although some pediatric TB specialists use IGRAs in younger children. PubMedPubMedTuberculosis - CDC Yellow Book, 2026 edition - NCBI Bookshelf

TST and IGRA are both acceptable tests for TB infection, but IGRAs generally have greater specificity than TST. This tradeoff is especially relevant when prior BCG vaccination could complicate interpretation of a TST. WileyWileyInterferon‐Gamma Release Assays versus Tuberculin Skin ...

If the child has a positive TST or IGRA, do not label the child as having isolated infection until disease has been excluded. If chest radiography is abnormal or pulmonary symptoms are present, obtain sputum or another appropriate respiratory specimen for acid-fast smear and culture, then proceed as suspected TB disease rather than preventive-treatment-only management. PubMedPubMedTreatment of Latent Tuberculosis Infection - PMC

When pulmonary TB is suspected, obtain respiratory specimens for acid-fast smear microscopy, mycobacterial culture, and a rapid molecular assay such as Xpert MTB/RIF. Molecular testing can identify M. tuberculosis and rifampicin resistance rapidly, while culture remains important for confirmation and drug-susceptibility testing. Wiley+2Wileycare diagnosis of tuberculosis: Past, present and futurePubMedDiagnosis of Tuberculosis in Adults and ChildrenCDCTreatment Outcomes of Childhood Tuberculous Meningitis in a ...

Young children may not produce adequate expectorated sputum. Select the specimen or specimen combination according to whether pulmonary, extrapulmonary, or combined disease is suspected and balance feasibility, invasiveness, and laboratory capacity. Parallel sampling with concurrent testing increases microbiologic confirmation in children. The Lancet+1The Lanceta secondary analysis of the RaPaed-TB studyPubMedPediatric Tuberculosis: A Review of Evidence-Based Best Practices for Clinicians and Health Care Providers

For possible TB meningitis, send CSF for cell count and routine chemistry plus mycobacterial smear, culture, and Xpert MTB/RIF when available; collect non-CSF samples concurrently because microbiologic confirmation from any source may establish the diagnosis. In one childhood TB meningitis cohort, Xpert MTB/RIF was positive in 34.3% of tested CSF samples, whereas CSF smear positivity was 2.2%, illustrating why a negative CSF smear cannot exclude disease. CDCCDCTreatment Outcomes of Childhood Tuberculous Meningitis in a ...

Treat microbiologic resistance results as directly actionable, but reconcile discordant susceptibility results with concern for heteroresistance. In children without obtainable cultures, empiric drug selection should be guided by susceptibility testing from the likely source case. The Lancet+1The LancetTuberculosisScienceDirectManagement of multidrug-resistant tuberculosis in children: a survival guide for paediatricians

After symptom review, examination, and chest radiography exclude TB disease, treat drug-susceptible TB infection rather than observing a child with documented infection. Treatment of TB infection is important to prevent progression to TB disease and future transmission. PubMed+1PubMedTuberculosis in ChildrenPubMedTuberculosis - CDC Yellow Book, 2026 edition - NCBI Bookshelf

Recommended U.S. regimen options include 3 months of once-weekly isoniazid plus rifapentine, 4 months of daily rifampin, 3 months of daily isoniazid plus rifampin, or 6 to 9 months of daily isoniazid. The provided guidance favors shorter regimens in the context of lower completion rates with 6- to 9-month isoniazid regimens. PubMedPubMedTuberculosis - CDC Yellow Book, 2026 edition - NCBI Bookshelf

For a child exposed to MDR or rifampicin-resistant TB, do not extrapolate drug-susceptible preventive regimens. Assess the source-case susceptibility and the child’s risk of progression; WHO-supported interim guidance identifies 6 months of levofloxacin preventive treatment for contacts of MDR/RR-TB. PubMedPubMedPediatric Tuberculosis: A Review of Evidence-Based Best Practices for Clinicians and Health Care Providers

For presumed drug-susceptible TB disease in children, the standard regimen is isoniazid, rifampin, ethambutol, and pyrazinamide for 2 months followed by isoniazid and rifampin for 4 additional months. The 6-month regimen is the default when disease is not clearly eligible for abbreviated therapy. PubMedPubMedTuberculosis - CDC Yellow Book, 2026 edition - NCBI Bookshelf

A 4-month regimen may be used for nonsevere TB in children when susceptibility to isoniazid and rifampin is presumed: isoniazid, rifampin, ethambutol, and pyrazinamide for 2 months followed by isoniazid and rifampin for 2 months. Do not apply this shortened regimen to a child with suspected resistance, severe disease, or uncertain susceptibility. PubMedPubMedTuberculosis - CDC Yellow Book, 2026 edition - NCBI Bookshelf

For pediatric MDR-TB, apply adult drug-resistant TB treatment principles while accounting for child-specific toxicity monitoring. When the child’s microbiology is unavailable, empirically construct treatment around the susceptibility profile of the likely infectious source; HIV coinfection increases management complexity. ScienceDirectScienceDirectManagement of multidrug-resistant tuberculosis in children: a survival guide for paediatricians

In TB meningitis and other presentations where inflammatory injury compromises function, corticosteroids have a role. In childhood TB meningitis, corticosteroids reduce mortality and long-term neurologic sequelae by reducing vasculitis, inflammation, and intracranial pressure. ScienceDirectScienceDirectIsoniazid Plus Pyrazinamide Plus Rifampicin - an overview