What Is Hypersensitivity Pneumonitis?
Reviewed: Dr. Gromatzky
5. Subacute Hypersensitivity Pneumonitis
Another type is subacute hypersensitivity pneumonitis. It is not a condition that will develop suddenly as the acute version does. Rather, it happens when the patient has been exposed to low levels of the allergen over a long period of time. It may be some time before the patient starts to show any symptoms.
When symptoms do begin to show, it will start with a fever in a lot of cases. Shortly afterwards, other symptoms can arise, including a cough, breathlessness, and fatigue. These symptoms will usually start off very mild and can get increasingly worse as time goes by.
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