Supplemental File S2 - Perry et al., 2023

From April 13, 2022 to August 26, 2022, 100 Ontario dairy farms were visited where blood from 1,990 dairy heifers (median = 20 samples per farm, range = 17 to 20; Figure 1) and 100 bulk tank milk samples were collected. In addition, a questionnaire was completed at each of the dairy farms, where each question was read verbally to the farmers by a single graduate student with responses recorded in a Qualtrics form. An anonymized distribution of responses to the questionnaire is available here as a PDF and raw CSV file.