Background and Objectives A worldwide pandemic of coronavirus disease 2019 (COVID-19) has affected millions of people. A 'closed-off management' protocol has been launched nationwide in China to cope with this major public health emergency. However, these procedures may cause a crisis for blood donation and blood supply. In this study, we assessed the impact of the COVID-19 pandemic on blood donation and supply in Zhejiang province, which could provide reference and insight for developing countermeasures in other countries. Materials and Methods Blood donor and supply information from 38 blood centres during the Spring Festival of 2019 and 2020 were reviewed. A self-administered questionnaire was carried out. Results Due to the COVID-19 pandemic, the number of whole blood donors dropped by 67%. The success rate of recruitment for donations dropped by 60%. Most respondents (81Á2%) were worried about the 'possibility of acquiring COVID-19 during blood donation'. The total amount of RBCs supply dropped by 65%. In the first week of the outbreak, the weekly amount of issued RBC units (10171Á5 u) was almost six times higher than the collected units (1347Á5 u). The mean haemoglobin value for RBCs transfusion was about 6Á3 g/dl. About 4% of RBCs and 2Á8% of frozen plasma were used in COVID-19 patients. Conclusion The secondary consequences of the COVID-19 pandemic are blood shortages caused by the unavailability of blood donors, and this is likely to be replicated in many countries with high burdens of COVID-19. Practical actions to broaden sources and reduce use for the global crisis must be taken proactively.

Background Although blood is an indispensable and important resource for clinical treatment, an imbalance between supply and demand may occur as the population ages and diversifies. Studies indicate that repeat blood donors are safe blood sources because of their voluntary blood donation education and frequent blood screening. However, the high rate of reduction in the number of first-time voluntary blood donors and low rate of repeated blood donation are common problems worldwide. Objective This study aimed to evaluate the effect of an intervention in nonregular blood donors using web-based videos and SMS text messages, in which the former was guided by the extended theory of planned behavior, to discover effective intervention methods to improve repeat blood donation rates among nonregular blood donors. Methods A total of 692 nonregular blood donors in Zhejiang province were randomly divided into intervention and control groups. The control group received regular, short reminder messages for a 6-month period, whereas the intervention group received web-based videos on the WeChat platform. The intervention group was guided by an extended theory of planned behavior, which included 9 factors: the respondents’ attitude, subjective behavioral norms, perceived behavioral control, the willingness to donate blood, outcome expectations, self-identity, blood donation–related anxiety, cognition of the blood donation environment, and previous blood donation experience. The intervention group was divided into 2 stages: those with an intervention at 3 months and those with a follow-up 3 months later. After 6 months, the redonation rate was evaluated for the 2 groups, and the scale in the intervention group was determined both before and after the intervention. A t test, chi-square test, logistic stepwise regression, and ANOVA were performed. Results The intervention group’s redonation rate was 16.14%, which was significantly higher than the control group’s redonation rate of 5.16%; P<.001. Men who were aged 31 to 45 years and had donated blood twice had a higher redonation rate after the web-based video intervention than after the SMS text messages; P<.05. The repeat donors’ improved blood donation anxiety (P=.01), outcome expectations (P=.008), and cognition of the blood donation environment (P=.005) after the intervention were significantly higher than those of the nonrepeat donors. Conclusions The web-based short video intervention based on the extended theory of planned behavior can effectively improve redonation rates. Outcome expectations, blood donation anxiety, and cognition of the blood donation environment can directly influence irregular blood donors to redonate blood.

To research the influencing factors of college students' blood donation behavior intention and propose intervention strategies to improve the repeated blood donation rate of college students. Questionnaire survey was used to research and analyze the influencing factors of behavior intention. Amos 21.0 software was used to establish structural equation modeling and perform confirmatory factor analysis. SPSS 20.0 was used for statistic. The model was proved with highly adaptability, with χ2/df = 2.956 < 3. Factors influencing college students' intention of repeat blood donation behavior can be summarized into four: attitude, external motivation, advice-taking, and perceived behavioral control. Among them, attitude and perceived behavioral control have a great direct impact on behavioral intention, while the external motivation and recommendation acceptance have an indirect impact by influencing the other two factors. In view of those evaluation items with high path coefficient in each factor, we can develop recruitment strategies to influence college students’ repeated blood donation behavior and provide scientific suggestions for improving their repeated blood donation rate.

Aims:The aim was to define the source of contamination of cryoprecipitate intercepted during visual inspection before transfusion.Materials and Methods: A clot was observed in one unit of cryoprecipitate before blood transfusion at the Dongyang People's Hospital. Bacterial cultures were performed using the BacT/ALERT system (BacT/ALERT 3D, bioMerieux, Durham, NC). The isolated bacteria were identified through conventional biochemical identification, matrix-assisted laser desorption ionization-time of flight mass spectrometry, and molecular analysis based on 16sr RNA. Samples from all individuals who came into direct contact with the cryoprecipitate were cultured, and the positive samples were then referred for bacterial identification. Results: A leak was found at the edge of a blood bag containing the cryoprecipi-