BACKGROUND: Respiratory infections are the most common infections in humans. The
prevalence of respiratory viruses in adults is largely underestimated, and relevant data …

BACKGROUND: Previous studies support a strong association between viral respiratory
tract infections and asthma exacerbations. The effect of newly discovered viruses on asthma …

Purpose: This study was performed to investigate the epidemiologic and clinical features of
13 respiratory viruses in children with acute lower respiratory tract infections (ALRIs) …

Importance While most viral respiratory tract infections can be diagnosed clinically, clinicians
frequently order tests to identify the specific offending virus. While there has been …

Objective: To investigate the role of all common respiratory viruses as upper and lower
respiratory tract pathogens in the first year of life. Study Design: This community-based birth …

The study of respiratory infections using epidemiologic tools allow the clinician to better
understand the most frequently involved agents—viruses and bacteria, which usually …

BACKGROUND: The clinical significance of viral load and co-infections in children with
respiratory infections is not clear. OBJECTIVE: To evaluate the correlation of viral load as …

For centuries it was assumed that infectious diseases were spread primarily by airborne
miasms. Contemporary concepts of disease transmission include direct contact spread …

Background Respiratory viral infections are a major cause of morbidity and hospitalization in
young children. Nevertheless, the population burden of respiratory viral infections …

Population-based respiratory research and vaccine efficacy studies have previously
required clinic or home visits when a subject had an acute respiratory illness. This method …