Disclaimer: Early release articles are not considered as final versions. Any changes will be reflected in the online version in the month the article is officially released.
Volume 32, Number 4—April 2026
Dispatch
Cardiomyopathy Caused by Coxsackievirus Strain A9 in Previously Healthy Child, Northeastern France, 2024
Anne-Laure Lebreil1, Maxime Bisseux1, Audrey Mirand, Marie Glenet, Yohan N’Guyen, Norhan Taha, Pierre Mauran, Cecile Henquell, and Laurent Andreoletti
Table
Laboratory tests performed on a child with recombinant mosaic coxsackievirus strain A9, associated with severe inflammatory cardiomyopathy, northeastern France, 2024*
| Laboratory tests | Day 1 | Day 19 | Day 97 | Day 179 |
|---|---|---|---|---|
| LVTDD, mm | 47.1 (TTE) | 47.6 (MRI) | 34.4 (TTE) | |
| T troponin, ng/L | 57 | 41.3 | 12 | |
| NT ProBNP, pg/mL | 32,843 | 2,897 | 251 |
*Corticosteroids plus intravenous Ig were administered on day 2, day 7, and day 16 of hospitalization. LVTDD, left ventricular tele diastolic diameters; MRI, magnetic resonance imaging; NT Pro BNP, N-terminal prohormone of brain natriuretic peptide; TTE, transthoracic echocardiography.
1These authors contributed equally to this article.
Page created: March 12, 2026
Page updated: April 10, 2026
Page reviewed: April 10, 2026
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.