Upper Respiratory Tract Infection Differential Diagnoses
- Author: Anne Meneghetti, MD; Chief Editor: Zab Mosenifar, MD more...
Differential Diagnoses
- Acute Laryngitis
- Allergic and Environmental Asthma
- Allergic Fungal Sinusitis
- Apnea, Sleep
- Asthma
- Bronchiectasis
- Bronchiolitis
- Bronchitis
- Bronchitis, Acute and Chronic
- Chlamydial Pneumonias
- Chronic Bronchitis
- Disorders of Taste and Smell
- Drooling
- Farmer's Lung
- Gastroesophageal Reflux Disease
- Goiter
- Gonococcal Infections
- H1N1 Influenza (Swine Flu)
- Halitosis
- Herpes Simplex
- Histoplasmosis
- HIV Disease
- Hypersensitivity Pneumonitis
- Immunoglobulin A Deficiency
- Infectious Mononucleosis
- Influenza
- Kawasaki Disease
- Legionnaires Disease
- Mumps
- Otitis Media
- Pneumococcal Infections
- Pneumonia
- Pneumonia, Bacterial
- Pneumonia, Community-Acquired
- Pneumonia, Viral
- Psittacosis
- Reflux Laryngitis
- Retropharyngeal Abscess
- Rhinitis Medicamentosa
- Rhinitis, Allergic
- Rhinitis, Nonallergic
- Sinusitis, Chronic
- Sinusitis, Fungal
- Toxoplasmosis
- Tracheal Tumors
- Vocal Cord Dysfunction
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| Symptom | Allergy | URI | Influenza |
| Itchy, watery eyes | common | rare; conjunctivitis may occur with adenovirus | soreness behind eyes, sometimes conjunctivitis |
| Nasal discharge | common | common | common |
| Nasal congestion | common | common | sometimes |
| Sneezing | very common | very common | sometimes |
| Sore throat | sometimes (postnasal drip) | very common | sometimes |
| Cough | sometimes | common, mild to moderate, hacking cough | common, dry cough, can be severe |
| Headache | uncommon | rare | common |
| Fever | never | rare in adults, possible in children | very common, 100-102°F or higher (in young children), lasting 3-4 days; may have chills |
| Malaise | sometimes | sometimes | very common |
| Fatigue, weakness | sometimes | sometimes | very common, can last for weeks, extreme exhaustion early in course |
| Myalgias | never | slight | very common, often severe |
| Duration | weeks | 3-14 days | 7 days, followed by additional days of cough and fatigue |

