PCV2 and Mycoplasma co-infection results in severe disease characterized by coughing, labored breathing, lethargy and decreased growth.
PCV2和支原体同时感染会加重病情，表现为咳嗽，呼吸困难，嗜睡和生长缓慢。
In 11, home children often coughing, sneezing, decreased immunity, the new decoration of the house the children don't want to go home;
家里小孩常咳嗽、打喷嚏、免疫力下降，新装修的房子孩子不愿意回家；
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