Geographical distribution of subjects seropositive for human T-cell leukemia virus type 1 in Papua New Guinea.

Of 1471 sera collected from 1986 to 1989 in Papua New Guinea (PNG), 2.2% were found to be positive for anti-HTLV-1 antibody by successive particle agglutination and immunofluorescence tests. The seropositive rate varied in different provinces and was higher in the coastal areas of the main island and in neighboring small islands than in the highlands of PNG.

A practical method of therapeutic plasmapheresis.

Plasmapheresis is a process in which whole blood is removed from an individual and the red cells returned; this enables a larger volume of plasma to be withdrawn than from the normal donation of whole blood. This paper deals with the manual technique of plasmapheresis performed by means of a single phlebotomy, or a cut-down using an artery and a vein, with simple equipment and minimal risk to the patient. The technique is economical, and suitable for patients with a normal haemoglobin level as well as for anaemic patients, and may be used for diagnostic or therapeutic purposes.

Causes of volunteer blood donor rejection in Papua New Guinea.

A survey of 5,279 voluntary blood donors in Port Moresby, Papua New Guinea showed 211 (4%) were rejected. The main causes of rejection were anaemia, recent illness, current medication and hypertension.