Piglets have severe asthma. What happened?

Piglets have severe asthma. When pigs are infected with respiratory diseases, such as mycoplasma pneumoniae, porcine reproductive and respiratory syndrome and porcine respiratory coronavirus, the delay of Haemophilus parasuis aggravates the clinical manifestations of the diseases. In recent years, it has been found that the infection of Haemophilus parasuis is often complicated or secondary after the pig farm is infected with porcine blue ear virus or porcine circovirus type 2, and the isolation rate of Haemophilus parasuis in clinically ill pigs is as high as 22%~30% or even higher.

Clinical symptoms:

Including fever, loss of appetite, anorexia, unresponsiveness, dyspnea, pain (inferred from screaming), joint swelling, limping, trembling, ataxia, visible mucosal cyanosis, lateral lying, and possible death.

Acute infection may leave sequelae, that is, sow abortion and boar chronic claudication. Even if infected sows are treated with antibiotics, they may cause serious diseases during childbirth. In the usual pig herd, the chronic lameness of nursing sows may lead to the extreme weakening of maternal behavior. In a word, cough, dyspnea, emaciation, lameness and coarseness are the main clinical symptoms.