In May 2000, bacterial contamination of municipal water in Walkerton, Ontario, resulted in
the worst public health disaster involving municipal water in Canadian history. At least seven …

Importance Little is known about the risk factors for, and the risk of, developing post–COVID-19
conditions (PCCs) among children. Objectives To estimate the proportion of SARS-CoV-2…

Background: Risk factors for severe outcomes of SARS-CoV-2 infection are not well established
in children. We sought to describe pediatric hospital admissions associated with SARS-…

BACKGROUND: Surface and ground water across the world, including North America, is
contaminated with bacteria resistant to antibiotics. The consumption of water contaminated with …

Importance Severe outcomes among youths with SARS-CoV-2 infections are poorly characterized.
Objective To estimate the proportion of children with severe outcomes within 14 days …

… support from Merck; Taylor Kohut and Claire Salisbury have received research support from
Merck; Marina Salvadori has received speaker and consultant support from Merck and GSK. …

Importance Clinical manifestations of SARS-CoV-2 variants have not been systematically
compared in children. Objective To compare symptoms, emergency department (ED) chest …

Background Children living with chronic comorbid conditions are at increased risk for severe
COVID-19, though there is limited evidence regarding the risks associated with specific …

Background An epidemic of human papillomavirus (HPV)-related oropharyngeal squamous
cell cancer (OPSCC) has been reported worldwide largely due to oral infection with HPV …

Background HPV-related head and neck cancer rates have been increasing in recent years,
with the tonsils being the most commonly affected site. However, the current rate of HPV …