There were delays in the delivery of medical and veterinary supplies, especially of serums and vaccines needed to protect farm animals and poultry from diseases that can otherwise cause a rate of loss of up to 90-per-cent in certain seasons.
1. 在交付畜牧业所需要的医疗和兽医用品、尤其是治疗牲畜和禽病所需要的血清和疫苗时的拖延可能造成某些季节的牲畜死亡率达到90％。