ARDS	Acute Respiratory Distress Syndrome
ATS	American Thoracic Society
CDC	Centers for Disease Control and Prevention
CI	Confidence Interval
COPD	Chronic Obstructive Pulmonary Disease
COVID-19	Coronavirus Disease 2019
ECDC	European Centre for Disease Prevention and Control
ED	Emergency Department
EMR	Electronic Medical Record
hMPV	Human Metapneumovirus
HRV	Human Rhinovirus
ICU	Intensive Care Unit
IDSA	Infectious Diseases Society of America
IQR	Interquartile Range
LRTI	Lower Respiratory Tract Infection
OR	Odds Ratio
PCR	Polymerase Chain Reaction
PORT	Patient Outcomes Research Team
PSI	Pneumonia Severity Index
RSV	Respiratory Syncytial Virus
RTI	Respiratory Tract Infection
SARS-CoV-2	Severe Acute Respiratory Syndrome Coronavirus 2
SD	Standard Deviation
URTI	Upper Respiratory Tract Infection