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2. Bronchitis - Wikipedia

   en.wikipedia.org/wiki/Bronchitis

   The infection then makes its way down to the bronchi. Symptoms include coughing up sputum, wheezing, shortness of breath, and chest pain. Bronchitis can be acute or chronic. [1] Acute bronchitis usually has a cough that lasts around three weeks, [4] and is also known as a chest cold. [5] In more than 90% of cases, the cause is a viral infection ...

3. Respiratory disease - Wikipedia

   en.wikipedia.org/wiki/Respiratory_disease

   Respiratory diseases, or lung diseases, [1] are pathological conditions affecting the organs and tissues that make gas exchange difficult in air-breathing animals. They include conditions of the respiratory tract including the trachea , bronchi , bronchioles , alveoli , pleurae , pleural cavity , the nerves and muscles of respiration .

4. Pneumonia - Wikipedia

   en.wikipedia.org/wiki/Pneumonia

   Pneumonia is the most common hospital-acquired infection that causes death. [29] Before the advent of antibiotics, mortality was typically 30% in those that were hospitalized. [22] However, for those whose lung condition deteriorates within 72 hours, the problem is usually due to sepsis. [41]

5. Sniffling, sneezing, coughing: What infectious disease do you ...

   www.aol.com/sniffling-sneezing-coughing...

   Most healthy people who have mild symptoms like runny nose, congestion and fatigue do not need to seek medical care. More than 200 viruses cause the common cold, which is more than likely the ...

6. Acute bronchitis - Wikipedia

   en.wikipedia.org/wiki/Acute_bronchitis

   The cough may persist for several weeks afterward with the total duration of symptoms usually around three weeks. [2] [1] Some have symptoms for up to six weeks. [3] In more than 90% of cases, the cause is a viral infection. [1] These viruses may be spread through the air when people cough or by direct contact. [2]

7. Respiratory tract infection - Wikipedia

   en.wikipedia.org/wiki/Respiratory_tract_infection

   Viruses that cause respiratory infections are affected by environmental conditions like relative humidity and temperature. Temperate climate winters have lower relative humidity, which is known to increase the transmission of influenza. [29] Of the viruses that cause respiratory infections in humans, most have seasonal variation in prevalence.