2008年-世界发展银行全球_Blood_Services_in_Central_Asian_Health_Systems___A_Clear_and_Present_Danger_of_Spreading_HIVAIDS_and_Other_Infectious_Diseases_70页_2mb

Summary of Blood Services in Central Asian Health Systems: A Clear and Present Danger of Spreading HIV/AIDS and Other Infectious Diseases

Core Content

This document, authored by Patricio V. Marquez and supported by the World Bank and CDC/CAR, highlights the critical public health challenges posed by the unsafe blood transfusion systems in Central Asia. It emphasizes the role of blood services in the spread of communicable diseases, particularly HIV/AIDS, hepatitis B and C, and syphilis, and calls for urgent reforms to strengthen these systems.

Main Findings

• Blood transfusions, although a relatively small contributor to communicable disease transmission, pose a significant risk in Central Asia due to poor safety standards and inadequate screening.
• In 2007, CDC/CAR re-screened 7,500 blood samples from Central Asian countries, revealing that contaminated blood may be reaching health facilities, putting unsuspecting patients at risk.
• HIV prevalence among blood donors was found to be 0.20%, with hepatitis B at 2.7%, hepatitis C at 3.0%, and syphilis at 3.6%.
• ALT (Alanine Aminotransferase) tests showed an 8.6% elevation rate, indicating potential window period infections that may not be detected by standard screening methods.
• Some health facilities in Central Asia do not test blood donations at all, leading to underestimation of transmission risks.
• The blood supply is alarmingly low, due to a lack of donor promotion, public fear, and limited awareness of the importance of blood donation.

Key Issues

• Organizational restructuring, new investment, and increased budgetary support are needed to improve blood transfusion systems.
• Systemic deficiencies in blood services include:
  • Inadequate donor screening
  • Weak laboratory infrastructure
  • Low donor participation
  • Insufficient testing and quality control
• The safety of the blood supply is a national responsibility, but requires international support to address effectively.

Recommendations

The report outlines several recommendations for improving blood services in Central Asia:

• Develop national blood programs and improve their stewardship.
• Address chronic under-financing of blood transfusion services.
• Improve the quality of transfusion services and related medical practices.
• Strengthen preventive public health and primary health care programs to reduce the supply-demand gap for blood.
• Foster regional communication and collaboration among Central Asian countries.
• Implement 100% unpaid blood donation to ensure safe and voluntary donations.
• Create information systems and standardized databases for blood donors and donations.
• Raise budgets for blood transfusion services.
• Improve infrastructure and equipment.
• Develop centralized procurement systems and guidelines for procurement.
• Ensure rational use of blood and its products.
• Implement quality assurance and control systems across all parts of the blood transfusion service.
• Revise national guidelines on the use of blood.

Challenges and Context

• Central Asian countries are poor, with low GDP and GNI, making it difficult to ensure blood supply safety.
• The health systems are weak, and public awareness of blood donation is low.
• Nosocomial transmission of HIV is a major concern, with blood transfusion being more efficient than other modes of transmission, such as contaminated syringes.
• Systemic deficiencies in blood services are inter-related, requiring a comprehensive approach to address them.

Conclusion

• Controlling blood-transmitted diseases and ensuring safe blood supplies are key public health priorities in Central Asia.
• The World Bank and international partners must support health system strengthening efforts to address these challenges.
• This report serves as an initial baseline for future assessments and aims to foster awareness and action at the national and international levels.

Key Stakeholders and Support

• The CDC/CAR team, led by Michel Favorov, conducted the 2007 assessment with the support of national health ministries.
• International organizations such as WHO and UNAIDS provided technical guidance and peer review.
• USAID funded the CDC/CAR team's work on HIV surveillance and blood safety.
• The World Bank supported the report's preparation and publication.

Keywords

• Blood services
• Blood transfusions
• Nosocomial transmission
• Communicable diseases
• HIV/AIDS
• Hepatitis B and C
• Syphilis

Conclusion

This report underscores the urgent need for reforms in blood transfusion services in Central Asia to prevent the spread of infectious diseases and improve public health outcomes. It calls for national and international collaboration, investment, and systemic improvements to ensure the safety and adequacy of blood supplies.