The Main Characteristics Of The Prevalence Of Blue Ear Disease In Pigs

The prevalence characteristics of blue ear disease in pigs are mainly manifested in the following five

1. Clinical manifestations tend to be complex, the degree of morbidity is increasing;

2. The mortality rate of piglet infection is on the rise;

3. Subclinical infection is becoming more and more common, the persistent infection of pigs, recessive infection is very common, the pig population with poison time is very long;

4. Immune suppression, often secondary to other diseases (such as erythrocytosis, streptococcus disease, salmonella disease, etc.), will also affect other vaccines (such as swine fever vaccine) vaccination effect;

5. Mixed infections are on the rise, such as ring virus disease, pseudo-rabies, swine fever, swine infectious pleural pneumonia, etc.