[Tetanus antibodies in conventional gamma globulin preparations]

Area of Science:

• Immunology
• Vaccinology
• Pharmacology

Context:

• Analysis of polyvalent immunoglobulin preparations commonly used in Germany.
• Tetanus antitoxin levels in standard gammaglobulin preparations.
• Established minimal protective level for tetanus antitoxin in serum.

Purpose:

• To determine the tetanus antitoxin titer in common immunoglobulin preparations.
• To assess the resulting serum tetanus antitoxin levels after administration of gammaglobulin.
• To evaluate the duration of tetanus protection afforded by prophylactic gammaglobulin use.

Summary:

• Commonly used polyvalent immunoglobulin preparations in Germany contain an average tetanus antitoxin titer of 40 I.E./ml.
• Administration of 5 ml of conventional gammaglobulin to adults results in a serum tetanus antitoxin level of approximately 0.75 I.E./ml, significantly above the minimal protective level of 0.01 I.E./ml.
• Prophylactic use of 5 ml of this IgG preparation in travelers provides protection against tetanus for at least 3-4 weeks, in addition to hepatitis protection.

Impact:

• Confirms the efficacy of standard immunoglobulin preparations in providing tetanus prophylaxis.
• Provides quantitative data on achievable tetanus antitoxin levels and duration of protection.
• Supports the use of conventional gammaglobulin for tetanus protection in specific populations, such as travelers.