Caribbean External Quality Assurance Program in Bacteriology and Antimicrobial Resistance (PCC-CAR)
INFORMATIVE NEWSLETTER Nº47 – April 2026
Dear Colleagues of the «Caribbean External Quality Assurance Program in Bacteriology and Antimicrobial Resistance»(PCC-CAR):
In the present newsletter, we are sending you the following documents (in Spanish):
- “Novedades CLSI-EUCAST 2026” breve resumen de las novedades más relevantes publicadas en 2026 en el documento M100-36th Edition del Clinical and Laboratory Standards Institute (CLSI): “Performance Standards for Antimicrobial Susceptibility Testing; Thirty sixth Informational Supplement”. https://antimicrobianos.com.ar/category/novedad_clsi/
- “Actualización de puntos de corte de Aztreonam-avibactam en enterobacterales”. Based on the CLSI and EUCAST breakpoints established for the disk diffusion method for the commercial formulation of aztreonam-avibactam (Emblaveo), we are sharing a bulletin that we sent to bacteriology laboratories in Argentina regarding the scope of this assay based on local epidemiology, particularly for isolates with zones between 22 and 24 mm. Although these are recommendations from Argentina, they could serve as a guide for other countries in the region with similar epidemiology. http://antimicrobianos.com.ar/wp-content/uploads/2026/04/Boletin-Informativo-Nro-2-PCC-NAC-Actualizacion-ATM-AVI-Abril-2026.pdf
We hope that you will find these documents useful in your daily practice.
Best regards and we will keep in touch!
Alejandra Corso and Paula Gagetti.
Servicio Antimicrobianos
Regional Reference Laboratory on Antimicrobial Resistance (RRL)
Instituto Nacional de Enfermedades Infecciosas
ANLIS «Dr. Carlos G. Malbrán».
Av. Velez Sarsfield 563 (1281)
Buenos Aires, Argentina
+54 11 43032812