Exudation used in a sentence

Exudation in a sentence as a noun

The only thing in the citations they're referencing to back up their claim is a one-line exerpt from the WHO report: 'Quote: “Lung tissue also displayed cellular and fibromyxoid exudation,desquamation of pneumocytes and pulmonary oedema&=&.' This appears to describe the actual condition of people with the disease as they have the disease, not after.