Recruitment and plasmapheresis of donors to provide human antitetanus immunoglobulin.

Recruitment and plasmapheresis of donors to provide human antitetanus immunoglobulin.

A method is described whereby about 100 litres of plasma containing 10-50 IU/ml tetanus antitixin was obtained, from which were prepared 5000 X 250 IU doses of human antitetanus immunoglobulin. Of 40 blood donors who received a booster injection of tetanus vaccine BP, 33 were plasmapheresed each week over a 10-12 week period starting three weeks after the injection. Twenty-two of these donors p...

Screening of blood donors for the detection of antitetanus antibodies suitable for the production of human antitetanus immunoglobulin.

During a 12-month period, 40 146 blood donors were tested for the presence of high titre antitetanus antibodies. An attempt has been made to define the most suitable donors, those with antitetanus antibody titres of 4 IU/ml or above, by virtue of titre, sex, location, and length of time since most recent immunisation. Particular note is made of those donors from university sessions. Towards th...

Repeated plasmapheresis of blood donors as a source of platelets.

PREPARATION OF ENRICHED IMMUNOGLOBULIN M AND IMMUNOGLOBULIN A FROM HUMAN PLASMA

As IgM and IgA-enriched preparations are needed to complete the immunotherapeutic spectrum, a simple procedure is described for the preparation of IgM and IgA enriched immunoglobulins. Fraction III which was prepared by cold ethanol fractionation was treated by octanoic acid followed by ethanol precipitation and ion-exchange chromatography using Sephadex DEAE A-50 and 0.1 M tris-D.35M NaCI ...

Investigation of the prevalence of human parvovirus B19 DNA in Korean plasmapheresis donors.

BACKGROUND To ensure the safety of plasma derivatives, some countries have been screening for the human parvovirus B19 (B19V) antigen or DNA in blood donors. We investigated the prevalence of B19V DNA and anti-B19V antibodies in Korean plasmapheresis donors to evaluate the necessity of B19V DNA screening test. METHODS Plasma samples were collected between March and July 2008 from 10,032 plasm...