A recent study by Norwegian researchers has shown that the somatic cell count in goat's milk is influenced by several physiological factors, making it difficult to establish a threshold value to indicate infection. The count increases with the age of the goat and the number of lambs, and is also affected by lactation stage, heat, and season. The variation in cell count between farms further complicates the situation. The researchers stress that any threshold value for infection will need to be adjusted for factors such as parity, lactation stage, and season.