Farmer's Lung Antigen Identification
Farmer's lung is a significant occupational lung disease. It is a form of hypersensitivity pneumonitis, an immune system reaction occurring in the lungs.
Understanding Farmer's Lung Causation
This condition develops when individuals inhale dust particles containing specific antigens. These antigens trigger an inflammatory response in the lungs.
Key Antigens Involved
The dust involved typically comes from moldy organic matter, such as hay or compost. The most common causative antigens are:
- Thermophilic Actinomycetes: These are bacteria commonly found in moldy hay. They are widely recognized as the primary cause of Farmer's lung.
- Aspergillus* species: While certain fungi like Aspergillus* can cause similar lung reactions (extrinsic allergic alveolitis), Actinomycetes* are more specifically and commonly associated with the classic presentation of Farmer's lung.
- Other molds and bacteria: Less frequently implicated.
Options like Penicillium* and Candida* are not the primary antigens associated with Farmer's lung.
Conclusion on Farmer's Lung Antigen
Based on the common etiology of Farmer's lung, Actinomycetes are the antigens most frequently linked to its causation.
Important Questions from Pneumonia
According to the WHO clinical criteria, which of the following clinical signs are indicative of 'severe pneumonia or very severe disease' in children aged 2 months to 5 years?
1. Convulsions
2. Lower chest indrawing
3. Inability to feed
4. Stridor
Select the correct answer using the code given below.
- The most common agent responsible for community acquired pneumonia is:
- All of the following are extrapulmonary manifestations of mycoplasma infection EXCEPT:
- Which of the following is/are the common infectious syndrome(s) associated with klebsiella pneumoniae?
1. Pneumonia
2. Intra-abdominal infections
3. Hepatitis
Select the correct answer using the code given below: - Consider the following statements about staphylococcal pneumonia:
1. Three-fourth of the patients are below the age of one year.
2. Pneumatoceles are common.
3. It is the commonest cause of empyema in a child below two years of age.
4. The condition is easily amenable to treatment in the outdoors.
Which of the above statements are correct?
