Diagnosis of influenza from lower respiratory tract sampling after negative upper respiratory tract sampling

Yield of Sputum for Viral Detection by Reverse Transcriptase PCR in Adults Hospitalized with Respiratory Illness

(2011) Ann R. Falsey et al.   JOURNAL OF CLINICAL MICROBIOLOGY

Segregation of Virulent Influenza A(H1N1) Variants in the Lower Respiratory Tract of Critically Ill Patients during the 2010–2011 Seasonal Epidemic

(2011) Antonio Piralla et al.   PLoS One

Risk Factors for Severe Outcomes following 2009 Influenza A (H1N1) Infection: A Global Pooled Analysis

(2011) Maria D. Van Kerkhove et al.   PLOS MEDICINE

Preferential Lower Respiratory Tract Infection in Swine‐Origin 2009 A(H1N1) Influenza

(2010) Ellen Yeh et al.   CLINICAL INFECTIOUS DISEASES

Pitfalls in Diagnosis of Pandemic (Novel) A/H1N1 2009 Influenza

(2010) K. Singh et al.   JOURNAL OF CLINICAL MICROBIOLOGY

Seasonal Influenza in Adults and Children—Diagnosis, Treatment, Chemoprophylaxis, and Institutional Outbreak Management: Clinical Practice Guidelines of the Infectious Diseases Society of America

(2009) Scott A. Harper et al.   CLINICAL INFECTIOUS DISEASES

Rapid-Test Sensitivity for Novel Swine-Origin Influenza A (H1N1) Virus in Humans

(2009) Dennis J. Faix et al.   NEW ENGLAND JOURNAL OF MEDICINE

Pathology of human influenza revisited

(2008) Thijs Kuiken et al.   VACCINE