Reduction of Severe Exacerbations of COPD during COVID-19 Pandemic in Portugal: A Protective Role of Face Masks?

Efficacy of face mask in preventing respiratory virus transmission: A systematic review and meta-analysis

(2020) Mingming Liang et al.   Travel Medicine and Infectious Disease

Impact of the COVID-19 Pandemic on Emergency Department Visits — United States, January 1, 2019–May 30, 2020

(2020) Kathleen P. Hartnett et al.   MMWR-MORBIDITY AND MORTALITY WEEKLY REPORT

Significant reduction in hospital admissions for acute exacerbation of chronic obstructive pulmonary disease in Hong Kong during coronavirus disease 2019 pandemic

(2020) King Pui Florence Chan et al.   RESPIRATORY MEDICINE

Clinical Courses and Outcomes of Patients with Chronic Obstructive Pulmonary Disease During the COVID-19 Epidemic in Hubei, China

(2020) Weihua Hu et al.   International Journal of Chronic Obstructive Pulmonary Disease

The Experience of COPD Patients in Lockdown Due to the COVID-19 Pandemic

(2020) Eulogio Pleguezuelos et al.   International Journal of Chronic Obstructive Pulmonary Disease

Decreased Influenza Activity During the COVID-19 Pandemic — United States, Australia, Chile, and South Africa, 2020

(2020) Sonja J. Olsen et al.   MMWR-MORBIDITY AND MORTALITY WEEKLY REPORT

The association between previous and future severe exacerbations of chronic obstructive pulmonary disease: Updating the literature using robust statistical methodology

(2018) Mohsen Sadatsafavi et al.   PLoS One

Impact and prevention of severe exacerbations of COPD: a review of the evidence

(2017) David MG Halpin et al.   International Journal of Chronic Obstructive Pulmonary Disease

Characteristics of seasonal influenza A and B in Latin America: Influenza surveillance data from ten countries

(2017) Saverio Caini et al.   PLoS One

Influenza Virus Aerosols in Human Exhaled Breath: Particle Size, Culturability, and Effect of Surgical Masks

(2013) Donald K. Milton et al.   PLoS Pathogens