CCDR: Volume 52-6, June 2026: Optimal Timing of Seasonal Vaccination

Table of contents

Advisory Committee Statement

Summary of the National Advisory Committee on Immunization (NACI) Statement: Updated guidance to protect infants and children from respiratory syncytial virus disease
A Killikelly, W Siu, N Brousseau on behalf of the National Advisory Committee on Immunization (NACI)

Summary of the National Advisory Committee on Immunization (NACI) Statement: Updated guidance on respiratory syncytial virus (RSV) vaccines for older adults and for adults at high risk of severe RSV disease
J Zafack, EM Abrams, N Brousseau on behalf of the National Advisory Committee on Immunization (NACI)

Scoping Review

Intraseasonal waning of influenza vaccine effectiveness and implications for the optimal timing of seasonal vaccination programs: A scoping review
P Doyon-Plourde, F Tadount, A Gil, C Lazarescu, M-M Ursu, N Sicard, W Siu, A Sinilaité

Modelling Study

Economic evaluation of wastewater surveillance in Ontario, Canada, using COVID-19 as a case study
Y Sahakyan, D Champredon, P Rabeenthira, A Rodriguez Barizonte, M Fleury, B Sander

Outbreak Report

Mycobacterium abscessus soft tissue infections associated with subcutaneous injection of lipolytic agents: An outbreak report and novel molecular epidemiology analysis approach
X Quan-Nguyen, N Waglechner, M Veillette, P-A Vasil, F Point, B Tannir, M Zarandi-Nowroozi, C Tsimiklis, N Pétrin, M Teltscher, A Urbanek, P-M Akochy, J Cox, R Lee, S Grandjean Lapierre

Epidemiological Study

Characteristics of outpatient nirmatrelvir/ritonavir recipients during the 2022/2023 era in Alberta, Canada: A retrospective observational population-based study
K Vu, J Randall, K Martins, S Aponte-Hao, L Saxinger, J Leal, E Rennert-May, E Rafferty, P Uyen Nguyen, T Williamson, S Klarenbach