Page 268 of articles about health
Netherlands: decrease in total sales of antibiotics used in animal production in 2010
Italy: epidemiological situation of African swine fever in Sardinia
A four-year summary of air filtration system efficacy for preventing airborne spread of PRRS and Mycoplasma hyopneumoniae

Clinical case: A PRRS Case
This case starts with abortions that occur dramatically in April. They begin on Saturday the 23rd and during the following week continue until reaching 34 abortions.