Herd-immunity across intangible borders: Public policy responses to COVID-19 in Ireland and the UK.

The responses to COVID-19 in Ireland and the UK differed, and will have consequences for life in these islands that will extend far beyond the current crisis. Ireland went into lockdown relatively early on 12 March, while after a slow initial response, with plans for herd immunity, the UK started introducing restrictions around 20 March and quickly became a world leader in cases. While the UK has also presented similar responses seen elsewhere in Europe, one further area of note sees the devolved responses in different parts of the UK diverge considerably.

Lymphocyte subset analysis to predict progression to AIDS in a cohort of homosexual men in San Francisco.

A group of 10 leukocyte and lymphocyte subsets were measured by simultaneous dual immunofluorescence and flow cytometry in a group of homosexual men from the San Francisco General cohort. Absolute numbers and percentages of lymphocytes were determined in 30 individuals who progressed to AIDS and 29 who did not over a 44-month period at annual intervals. At entry into the study, all subjects were asymptomatic, HIV seropositive, and had multiple changes in lymphocyte subsets compared to HIV-negative controls.