Psychodermatology is a newer and emerging subspecialty of dermatology, which bridges psychiatry, psychology, paediatrics and dermatology. It has become increasingly recognised that the best outcomes for patients with psychodermatological disease is via a multidisciplinary psychodermatology team. The exact configuration of the multidisciplinary team is, to some extent, determined by local expertise. In addition there is a growing body of evidence that it is much more cost effective to manage patients with psychodermatological disease in dedicated psychodermatology clinics. Even so, despite this evidence, and the demand from patients (and patient advocacy groups), the delivery and establishment of psychodermatology services is very sporadic globally. Clinical and academic expertise in psychodermatology is emerging in dermatology and other (often peer-reviewed) literature. Organisations such as the European Society for Dermatology and Psychiatry champion clinical and academic advances in psychodermatology, whist also enabling training of health care professionals in psychodermatology. Emiliano Panconesi, to whom this supplement is dedicated, was at the forefront of psychodermatology research and was a founding member of ESDaP.

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Erythema multiforme is reported for the first time in 2 South African horses. Both horses displayed a sudden, fulminant outbreak of raised, non-alopecic and non-pruritic plaques over the dorsolateral aspects of the neck and trunk. In both cases the distribution of the lesions was bilaterally symmetrical. Histopathological findings included hydropic degeneration of basal epidermal cells, eosinophilic necrosis of individual or groups of keratinocytes, intra-epidermal and sub-epidermal cleft formation and mixed, dermal, perivascular infiltrates. An initiating cause could not be identified in either case, Both horses underwent gradual spontaneous remission within 3 months.

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A dynamic model of Schistosoma japonicum transmission is presented that incorporates effects of infection intensity, age, and sex. We use four infection intensity classes to investigate the impact of ecologic changes and public health interventions on the burden of infection within communities. Age- and sex-specific infection data from three disease-endemic villages in the Philippines are used to estimate the parameters of the model. The model gives good qualitative agreement with observed fecal egg counts adjusted for the accuracy of the Kato-Katz examination. Our results suggest that differences in infection burden between villages are caused by differences in both the infection process and the recovery process in humans. We describe the potential impact of mass treatment of all humans on the numbers with high infection. Furthermore, we show that a sudden reduction in snail population size would affect high prevalence and low prevalence communities in different ways.