Splenocyte plaque assay for the detection of murine leukemia virus

A modified XC assay for murine leukemia virus (MuLV) employing splenocytes taken directly from the animal is described. This modification can be more than 1000 times more sensitive than XC plaque assays employing tissue extracts. This technique should lend itself readily to the quantitation of infectious MuLV in defined populations of lymphoid cells.

Injuries caused by rubber bullets: a report on 90 patients

The injuries in 90 patients caused by rubber bullets are described. There was 1 death and 17 people in the series had permanent disabilities or deformities. In 41 patients the injuries necessitated admission to hospital. One fatality outside this series is known. Injuries to the head and neck were frequent and severe.

Politics in the development of a migrant health center. A pilgrim's progress from idealism to pragmatism

New methods of health-care delivery have been recommended to correct the inequities in the distribution of health services to rural and urban poor. A migrant health center developed in 1970 to accomplish this aim illustrated the many attendant problems. The award of the grant to an outside consumer group rather than to the country health department resulted in political pressures during the center's development. Other factors isolated the center. These included categorical funding specifically directed to a community's ethnic minority and the lack of a regional network of health care. Confusion was created when legitimate spokesmen of the target group, other segments of the local community or interested private and governmental agencies were not defined. Although a program for curative and preventive medicine was established for a minority, the center was less successful in becoming self-supporting and in affecting the social and economic determinants of health.

One-way nonstimulation of mixed leukocyte culture in dog families

Fifteen dog families were studied in mixed leukocyte culture. In eight families of seven different breeds, one-way nonstimulation in mixed leukocyte culture was observed. This could be explained by lymphocyte-defined (LD) homozygosity in most instances. In one family, an inclusion phenomenon was postulated, and in another, a deletion. LD homozygotes can serve as reference for LD typing and can also help elucidate the relative role of the LD locus for transplantation of organs.