Ewan McFarlane

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Samples of serum from 970 people in Nova Scotia, Canada, were tested by radioimmunoassay for determination of the prevalence of antibodies to hepatitis A antigen (anti-HA). Volunteer blood donors aged 16--26 years or 51 years old or older provided 575 samples. Other samples were obtained from 152 students accepted for nursing training at the Victoria(More)
The prevalence of antibodies to hepatitis A (anti-HA) was investigated in patients attending a clinic for haematological malignancies. Patients were divided into three age groups; the number with antibodies in each group was recorded. Of the 130 patients studied, 44% of those aged 4-26, 70% of those aged 27-50, and 83% of those aged 51-76, were positive.(More)
When cells of the yeast, Saccharomyces cerevisiae, were deprived of nitrogen, a condition leading to Gl arrest, there was an immediate increase in the levels of total ribonuclease (RNase) activity within these cells. During starvation, only the cells arrested in Gl showed increased RNase activity. Although the RNase activities of extracts of starved and(More)
Samples of serum from 421 patients attending a clinic for sexually transmitted diseases (STDs) were tested by radioimmunoassay for determination of the prevalence of antibodies to hepatitis A antigen (anti-HA). It was found that 42 . 4% of 33 homosexual men, 39 . 4% of 218 heterosexual men, and 38 . 8% of 170 female patients had positive results for(More)