ABSTRACT
Objective To analyze the loss coefficient of bivalent live attenuated oral polio vaccine（bOPV) in Hongshan District, and understand the causes and influencing factors, and to provide a basis for scientifically formulating vaccine use plans and regulating vaccine management. Methods Using the data of Hubei Province Immunization Planning Information System and Hongshan District Vaccination Storage and Management System, a special questionnaire was designed to understand the vaccination and use of bOPV in various immunization units in Hongshan District. A descriptive statistical analysis method was used to calculate the loss coefficient. Results The bOPV loss coefficient of 25 vaccination units in Hongshan District was 1.69. The difference of the loss coefficient between the out-patient clinics of the District Health and Family Planning Committee（1.35）and the community clinics undertaken by large hospitals (2.01）was statistically significant. The difference of the loss coefficient between the inoculation once a week（1.57）and 2-6 times per week（1.94）was statistically significant. In terms of vaccine-disabled time, the two groups of 4 hours had different calculated loss coefficients 1.86 and 1.61, respectively, and the difference was statistically significant. Multivariate regression analysis of the factors related to the loss coefficients found that different outpatient attributes had a greater impact on the loss coefficient than the inoculation cycle and the number of inoculation stations. The loss coefficient for 2016 and 2017 was 2.09 and 1.75, respectively. The difference was statistically significant. Conclusion The management and use of live attenuated bivalent polio vaccine in Hongshan District was relatively standardized. The vaccine loss can by further reduced by strengthening supervision and assessment, setting up centralized vaccination and standardizing publicity and training.
ABSTRACT
Objective To investigate the effects of anticancer bioactive fraction AMH-T of lichen on blood routine,organ coefficient and organ morphology by canying out short-term repeated dose toxicity test in rat so as to provide evidence for the development of anticancer drugs.Methods The nude mice were randomly divided into 5 groups:DDP group,DMSO group,and three AMH-T groups with the dosage of 50mg/kg,100mg/kg,and 200 mg/kg respectively.The weights of the mice were recorded every four days.At the end of the experiment,automatic biochemical analyzer and blood cell analyzer were applied to detect the serum biochemical indicators and blood routine indexes.The mice were dissected to observe the pathological changes in main organs.Heart,liver,spleen,kidney and testicle were weighed for organ coefficient calculation.Results In short-term repeated dose toxicity test,AMH-T significantly increased blood ALT and AST levels (P＜0.01) and significant change was found in other blood biochemical indexes and blood routine indexes.AMH-T had no obvious effect on weight,development of heart,liver,spleen,kidney and testicle.Conclusion When subcutaneous injection is performed,AMH-T shows hepatotoxicity,but it shows no toxicity on bone marrow hematopoietic function.