The edition · Infectious Diseases
Chest X-ray AI alone beat AI plus CRP for community TB screening, and nirsevimab's second-season signal
In 20,023 adults screened in Lesotho and South Africa, adding point-of-care CRP after computer-aided X-ray reading missed more TB and cost more. Universal infant nirsevimab in Galicia was linked to fewer RSV admissions into a second season.
The edition in brief
A paired-screening trial of 20,023 household members in Lesotho and South Africa compared computer-aided detection (CAD) on chest X-ray alone with CAD followed by point-of-care CRP. Of 73 TB cases found by either, CAD alone detected 94.5% and CAD plus CRP 82.2% (difference −12.3%), failing noninferiority, and the combined approach cost 37% more per case found. Published in July, it bears directly on active case-finding programmes such as India's. A Lancet Infectious Diseases commentary on the NIRSE-GAL study notes that universal infant nirsevimab was associated with 86% fewer RSV lower respiratory admissions in the first season and 55% fewer in the second, without signs of enhanced disease; the second-season finding is unreplicated. A Lancet Infectious Diseases review summarises real-world effectiveness of maternal RSV vaccine, infant monoclonals and older-adult vaccines, and notes that cost confines them mostly to richer settings. The FDA recorded a supplement to a generic voriconazole application, an administrative action. The pearl covers voriconazole level monitoring.
RSV prevention now spans every age, but uptake lags the evidence
RSV immunisation works across infancy and older age; where available, a direct clinician recommendation is what drives uptake.
Infant nirsevimab was linked to fewer RSV admissions into a second season
Nirsevimab's first-season benefit is well established; the second-season reduction is an interesting, unreplicated signal.
FDA records a supplement to a generic voriconazole application
An FDA supplement to a generic voriconazole application is administrative; no change to prescribing.
Check a voriconazole trough level, early
Measure a voriconazole trough early and after any dose or interaction change.
AI chest X-ray reading alone found more TB, more cheaply, than AI plus CRP
For community TB screening, CAD on chest X-ray alone found more cases at lower cost than adding a CRP step; keep the pathway simple.
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