Author Interviews, CMAJ, Outcomes & Safety, Pulmonary Disease, Respiratory / 08.03.2016 Interview with: Dr. Gary Garber MD Chief of infection prevention and control Public Health Ontario Professor of medicine University of Ottawa What is the background for this study? What are the main findings? Dr. Garber: There are conflicting recommendations regarding the use of respirators vs face masks to protect healthcare workers against acute respiratory infections. Our systematic review and meta-analysis show that although N95 respirators have improved efficiency in reducing filter penetration under laboratory conditions, there is insufficient data to show a protective advantage compared to surgical mask in clinical settings. (more…)
Author Interviews, CDC, Hepatitis - Liver Disease, Outcomes & Safety / 22.04.2015 Interview with: Chong-Gee Teo, MD, PhD Chief, Laboratory Branch Division of Viral Hepatitis CDC Medical Research: What is the background for this study? Dr. Teo: Hepatitis C outbreaks in the course of providing healthcare continue to occur. Some happen when hepatitis C virus (HCV) is transmitted to patients following breakdowns in safe injection and infection control practices, and mishaps during surgery. Another route of provider – to patient HCV transmission is diversion, self-injection and substitution of opioids intended for anesthetic use (collectively referred to as “tampering”). A patient acquires infection when an HCV-infected provider, who is an injecting drug user, self-injects from a syringe prefilled with opioid anesthetic, fills the syringe with a volume substitute (e.g., saline or water), and then administers the adulterated preparation to the patient. The study consisted of two parts: 1) to quantify the extent that anesthetic opioid tampering contributes to hepatitis C outbreaks by analyzing healthcare-associated outbreaks occurring between 1990 and 2012 in developed countries. 2) to estimate the probabilities of provider-to-patient transmission reflecting the “real-world” setting in which a patient presents for health care, unaware of risks posed by procedures conducted by a provider who may or may not be an injecting drug user or HCV infected. (more…)