Author

Laura Kwong

Laura Kwong

Laura (Layla) H. Kwong is an assistant professor in Environmental Health Sciences who focuses on exposure to environmental contaminants and infectious disease, impacts on child and maternal health and development, and interventions to reduce adverse impacts. She has worked in Bangladesh, India, China, Mongolia, Fiji, Indonesia, Peru, Uganda, and Mali in urban, rural, and humanitarian settings.

COMMENTARY
A sign advertising protective face masks is taped in the window of a coronavirus pop-up store.

Evidence shows that, yes, masks prevent COVID-19 | Opinion

By: - September 30, 2021

Do masks work? And if so, should you reach for an N95, a surgical mask, a cloth mask or a gaiter? Over the past year and a half, researchers have produced a lot of laboratory, model-based and observational evidence on the effectiveness of masks. For many people it has understandably been hard to keep track […]