Is chronic bronchitis contagious?

Written by Wang Xiang Yu

Pulmonology

Updated on September 17, 2024

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Chronic bronchitis refers to some chronic non-specific inflammation of the bronchial mucosa and surrounding tissues. Its main symptoms are coughing and expectoration, so many people are concerned about the contagion from patients with chronic bronchitis. However, chronic bronchitis itself is not a contagious disease and is not considered for acute infectious disease management. This means that most of the time, it is relatively safe to be in contact with patients suffering from chronic bronchitis. Nonetheless, there are some exceptions, such as certain cases where a chronic bronchitis patient might also be afflicted with mycoplasma infections or certain viral infections, such as H1N1 influenza, H3N2 influenza, or other infections like tuberculosis. In such cases, the chronic bronchitis patient may potentially be infectious.

Other Voices

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Written by Han Shun Li

Pulmonology

34sec

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Differences between acute bronchitis and chronic bronchitis

Generally speaking, acute bronchitis has a sudden onset, with patients often experiencing symptoms such as fever, coughing, and coughing up phlegm, and some patients may have wheezing. With effective treatment, recovery usually occurs within two to three weeks. Chronic bronchitis, on the other hand, typically has a longer course of illness with recurring symptoms, including coughing, coughing up phlegm, chest tightness, and wheezing. The duration of the illness often exceeds two years, with episodes typically lasting more than three months each year.

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Written by Wang Xiang Yu

Pulmonology

56sec

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Causes of Chronic Bronchitis

The causes of chronic bronchitis are not yet very clear. It is currently speculated that it may be the result of multiple factors interacting over a long period. The factors most closely associated with the occurrence of chronic bronchitis primarily include smoking, cigarette smoke, dust, and irritants such as sulfur dioxide, nitrogen dioxide, chlorine, ozone, etc. Additionally, some infectious factors may also be somewhat related to the occurrence of chronic bronchitis, with the most common possibly being infections by mycoplasma, bacteria, or viruses. Furthermore, chronic bronchitis may be related to age, climate, and other factors. Overall, the triggers of chronic bronchitis are not very clear at present, and it is advised to eliminate these risk factors as much as possible if present.

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Written by Wang Xiang Yu

Pulmonology

58sec

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Chronic bronchitis symptoms

Chronic bronchitis is also known as "old chronic bronchitis." From the name, it can be inferred that its cough and expectoration last for a long time and its onset is slow, which can manifest as acute exacerbation. The main symptoms of chronic bronchitis are cough and expectoration, either with or without wheezing. The cough in chronic bronchitis usually occurs in the morning, meaning that the cough is more pronounced upon waking up. The sputum is generally white, sticky, mucoid, or frothy, and may occasionally contain streaks of blood but generally is not associated with coughing up blood. In addition to coughing and expectoration, a small number of patients may experience wheezing or shortness of breath. In cases where the wheezing is more pronounced, it is also referred to as asthmatic bronchitis.

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Written by Wang Xiang Yu

Pulmonology

1min 51sec

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Can chronic bronchitis be treated?

Chronic bronchitis, commonly known as "chronic obstructive bronchitis," is treatable. The primary symptoms of chronic bronchitis are coughing and expectoration. If the disease occurs for more than three months each year, for two consecutive years, while excluding other organic diseases, chronic bronchitis can be diagnosed. Treatment for chronic bronchitis is divided into two parts. During acute exacerbations, which typically present with worsened coughing and expectoration, increased sputum volume, or the presence of purulent sputum and possibly accompanied by wheezing and fever, the main treatment is anti-infection. The primary medications for anti-infection are antimicrobial drugs, which include macrolides, quinolones, cephalosporins, etc. Additionally, treatment can be aimed at alleviating symptoms of coughing and expectoration and might include expectorants and cough suppressants, such as ambroxol. For wheezing, medications like aminophylline or nebulized treatments may be necessary. Most of the time, patients with chronic bronchitis are in a remission phase. The primary treatment here initially involves addressing known triggers, such as insisting smokers quit and minimizing exposure to dust or harmful gases at work. Chronic bronchitis patients are encouraged to exercise moderately, strengthen their physique, and prevent colds. For patients who experience repeated respiratory infections, vaccination or immune modulators, such as BCG, may be considered. Always follow a physician’s guidance regarding specific medication use.

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Written by Wang Xiang Yu

Pulmonology

59sec

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Chronic bronchitis radical cure medication

First, we still need to know what chronic bronchitis is. The medical definition of chronic bronchitis is chronic non-specific inflammation of the trachea, bronchial mucosa, and surrounding tissues. Here, we emphasize the chronic process, and the diagnostic criteria generally require that the condition persists for more than three months each year, for two consecutive years or more. Since the definition of the disease strongly emphasizes the chronic process, we must understand this disease and accept this fact. The symptoms of chronic bronchitis can last a long time and may recur throughout a person's life. So far, we have not found a cure for chronic bronchitis. Therefore, patients with chronic bronchitis do not need to believe those false advertisements, nor should they pursue a cure for chronic bronchitis and use antibiotics long-term, as these are not advisable approaches.