The Role of Fatty Acids in Vaccine Efficacy

Inclusion Criteria: * 1）18-45 years old; * 2）BMI 18.5-24.9 kg/m2; * 3）Have not received rabies vaccination. Exclusion Criteria: * 1\) Those who have severe disorders of abnormal lipid metabolism; * 2\) Those who have used lipid-lowering drugs, weight loss drugs, and insulin drugs in the past three months; * 3\) Those who have received other vaccines in the past three months; * 4\) Those who have used probiotics or prebiotics in the past three months; * 5\) Those who have used steroids and immunosuppressants, other hormonal drugs in the past year; * 6\) Those with immunodeficiency diseases; * 7\) Those with a history of severe vaccine allergies; * 8\) Those who have disorders of liver and kidney metabolism; * 9\) Those who have had fever, cold, severe diarrhea and other diseases in the past month. * 10\) Smokers in the last year.