This paper will give an overview of Murray Bowen's theory of family systems. It will describe the model's development and outline its core clinical components. The practice of therapy will be described as well as recent developments within the model. Some key criticisms will be raised, followed by a case example which highlights the therapeutic focus of Bowen's approach.

Background Natural and vaccine-induced immunity will play a key role in controlling the SARS-CoV-2 pandemic. SARS-CoV-2 variants have the potential to evade natural and vaccine-induced immunity. Methods In a longitudinal cohort study of healthcare workers (HCWs) in Oxfordshire, UK, we investigated the protection from symptomatic and asymptomatic PCR-confirmed SARS-CoV-2 infection conferred by vaccination (Pfizer-BioNTech BNT162b2, Oxford-AstraZeneca ChAdOx1 nCOV-19) and prior infection (determined using anti-spike antibody status), using Poisson regression adjusted for age, sex, temporal changes in incidence and role. We estimated protection conferred after one versus two vaccinations and from infections with the B.1.1.7 variant identified using whole genome sequencing. Results 13,109 HCWs participated; 8285 received the Pfizer-BioNTech vaccine (1407 two doses) and 2738 the Oxford-AstraZeneca vaccine (49 two doses). Compared to unvaccinated seronegative HCWs, natural immunity and two vaccination doses provided similar protection against symptomatic infection: no HCW vaccinated twice had symptomatic infection, and incidence was 98% lower in seropositive HCWs (adjusted incidence rate ratio 0.02 [95%CI <0.01-0.18]). Two vaccine doses or seropositivity reduced the incidence of any PCR-positive result with or without symptoms by 90% (0.10 [0.02-0.38]) and 85% (0.15 [0.08-0.26]) respectively. Single-dose vaccination reduced the incidence of symptomatic infection by 67% (0.33 [0.21-0.52]) and any PCR-positive result by 64% (0.36 [0.26-0.50]). There was no evidence of differences in immunity induced by natural infection and vaccination for infections with S-gene target failure and B.1.1.7. Conclusion Natural infection resulting in detectable anti-spike antibodies and two vaccine doses both provide robust protection against SARS-CoV-2 infection, including against the B.1.1.7 variant.

This article explores some core findings from a qualitative investigation of parents' experiences of their child's treatment in an adolescent mental health service in Sydney, Australia. In particular, the research question was, "How does parents' involvement in the child/adolescent's treatment influence their perception of how they can be helpful in their child's recovery?" The theme of parent hope emerged from the broad qualitative exploration of parent's experience of their involvement in their adolescent's intensive treatment program. A purposive sample of 14 sets of parents participated, being interviewed at admission, discharge, and 6 months following their adolescent's discharge. A continuum of high, moderate, and low levels of hope were evident in this parent sample 6 months after their treatment involvement. The strongly emergent theme was the relationship between parents' hope and agency/self-efficacy. Parents who remained more passive in expecting expert helpers to fix their child experienced reduced hope months after finishing the program. When parents positively changed their interaction with their child, they felt a more sustained hopefulness. These findings generate the hypothesis that if parents are actively involved in changing themselves as part of their child's treatment, they experience increased hope and effectiveness in contributing to their child's recovery.

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