APP and infection: For example, a biosensor detecting a specific APP such as haptoglobin (Hp) can provide real-time information on mastitis in milking cows [118], inflammation/infection or trauma in beef and dairy herds [119], and the future development of biosensors able to detect Pig-Major Acute Proteins (Pig-MAPs) important for revealing infection with H3N2 swine influenza virus or other inflammatory conditions in pigs [114,120,121].