Ebola virus disease afflicts both human and animal populations and is caused by four ebolaviruses. These different ebolaviruses may have distinct reservoir hosts and ecological contexts that determine how, where, and when different ebolavirus spillover events occur. Understanding these virus-specific relationships is important for preventing transmission of ebolaviruses from wildlife to humans. We examine the ecological contexts surrounding 34 human index case infections of ebolaviruses from 1976–2014. Determining possible sources of spillover from wildlife, characterizing the environment of each event, and creating ecological niche models to estimate habitats suitable for spillover, we find that index case infections of two ebolaviruses, Ebola virus and Sudan virus, have occurred under different ecological contexts. The index cases of Ebola virus infection are more associated with tropical evergreen broadleaf forests and consuming bushmeat than the cases of Sudan virus. Given these differences, we emphasize caution when generalizing across different ebolaviruses and that location and virus-specific ecological knowledge will be essential to unravelling how human and animal behavior lead to the emergence of Ebola virus disease.

A scaling model is presented for low Reynolds number viscous flow within an array of microfabricated posts. Such posts are widely used in several lab-on-a-chip applications such as heat pipes, antibody arrays and biomolecule separation columns. Finite element simulations are used to develop a predictive model for pressure driven viscous flow through posts. The results indicate that the flow rate per unit width scales as approximately h1.17g1.33/d0.5 where h is the post height, d post diameter and g is the spacing between the posts. These results compare favorably to theoretical limits. The scaling is extended to capillary pressure driven viscous flows. This unified model is the first report of a scaling that incorporates both viscous and capillary forces in the microfabricated post geometry. The model is consistent with Washburn dynamics and was experimentally validated to within 8% using wetting on microfabricated silicon posts.

Covid‐19 has led to a shift towards online therapy. This paper focuses on therapists’ experiences of translating systemic practice online with families. A range of UK services are represented, including community, inpatient, adult and children services. A social construction theory, coordinated management of meaning, is used to understand online family and systemic therapy. The new context of online therapy influenced all other levels of the therapeutic encounter including content and structure of sessions, therapeutic relationship, therapists’ identity and culture of therapy. The relationship between ‘doing’ online therapy and reflecting on practice has been central in co‐constructing new ways of interacting. There were many similarities across services, where there were differences these were client and context specific. As better ways of engaging emerged, therapists became more confident, creativity in therapy increased and attitudes about online therapy became more positive. Practitioner points Online systemic therapy is possible across adult and children services at different tiers within community and inpatient settings. CMM provides a framework to understand communication in online therapy. Online therapy requires reconsiderations at all levels of the therapeutic encounter. Increased confidence and competence correlates with positive attitudes about online therapy. Online therapy is impacting on the overall evolving culture of therapy.

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A Multi-disciplinary project staffed by personnel from nursing, computer science and speech and language therapy developed a computer based communication aid called ICU-Talk. This device has been designed specifically for intubated patients in hospital intensive care units. The ICUTalk device was trialled with real patients. This paper reports the challenges faced when developing a device for this patient group and environment. A description of the methods used to produce ICU-Talk and resul~ from the trials will be presented.