Toxoplasmosis in geese and detection of two new atypical Toxoplasma gondii strains from naturally infected Canada geese (Branta canadensis).

Wild birds are important in the epidemiology of toxoplasmosis because they can serve as reservoir hosts, and vectors of zoonotic pathogens including Toxoplasma gondii. Canada goose (Branta canadensis) is the most widespread geese in North America. Little is known concerning T. gondii infection in both migratory, and local resident populations of Canada geese. Here, we evaluated the seroprevalence, isolation, and genetic characterization of viable T. gondii isolates from a migratory population of Canada geese. Antibodies against T. gondii were detected in 12 of 169 Canada geese using the modified agglutination test (MAT, cutoff 1:25). The hearts of 12 seropositive geese were bioassayed in mice for isolation of T. gondii. Viable parasites were isolated from eight. One isolate was obtained from a seropositive goose by both bioassays in mice, and in a cat; the cat fed infected heart excreted T. gondii oocysts. Additionally, one isolate was obtained from a pool of four seronegative (<1:25) geese by bioassay in a cat. The T. gondii isolates were further propagated in cell culture, and DNA extracted from cell culture-derived tachyzoites were characterized using 10 polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) genetic markers (SAG1, 5' and 3'SAG2, alt.SAG2, SAG3, BTUB, GRA6, c22-8, c29-2, L358, PK1, and Apico). The results revealed five different genotypes. ToxoDB PCR-RFLP genotype #1 (type II) in one isolate, genotype #2 (type III) in four isolates, genotype #4 in two isolates, and two new genotypes (ToxoDB PCR-RFLP genotype #266 in one isolate and #267 in one isolate) were identified. These results indicate genetic diversity of T. gondii strains in the Canada geese, and this migratory bird might provide a mechanism of T. gondii transmission at great distances from where an infection was acquired.

Is training in psychosocial interventions worthwhile? Report of a psychosocial intervention trainee follow-up study.

A follow-up study of psychosocial intervention (PSI) trainees from the Sheffield and Maudsley training centres was undertaken in three stages. In Stage 1, 141 students, at two PSI training centres, were sent a simple postal questionnaire to elicit career trajectory following PSI training. A response rate of 82% was achieved. The sub-group, who had been trained and who still engaged in clinical practice were identified and followed-up in more detail (n=96). The effect of PSI training in a range of domains was investigated. The impact of training may not be to equip students with formal technical skills in CBT and family work. What is more likely is that trainees acquired proficiency in: working effectively using a case management model; conveying 'therapeutic optimism'; enabling users to meet their own goals and helping them to develop better coping strategies; using 'stress vulnerability' and formal outcome measures as means of structuring this approach. The secondary aim of the study was to identify and prioritise the barriers that impede the effective implementation of PSI skills in routine service settings. For the second phase of the survey the response rate was again 82%. This group's service managers were identified and surveyed for the same information and 59% responded. The aim was to gather information about implementation issues from both the clinical and service perspectives. The results of the survey indicate that PSI training has a positive impact on the development of services for people with serious mental health problems although there are serious organisational hurdles for managers, trainees and organisations to overcome if PSI skills are to be properly implemented. Key factors that impact upon faithful implementation are related to resource issues (caseload size), organisational factors (the existence of an implementation plan and training strategy), and the extent to which the trainee's team is supportive.