Fungus a possible precursor of severe respiratory diseases in pigs

Respiratory diseases in pigs typically involve multiple infections from different pathogens. Some pathogens play a greater role than others in the progression of the disease. The fungus Pneumocystis carinii is a relatively common cause of pneumonia in Austrian pigs, but its role has so far remained largely unexplored. Pneumocystis is considered to be less dangerous than other pathogens, as it probably requires other underlying conditions to sufficiently weaken the immune defence of the animals first.

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