This prospective longitudinal study investigated the epidemiology of enteric disease associated with infections in calves aging up to 70 days. A total of 850 fecal samples were collected from 67 calves. Seventeen isolates of Salmonella spp. were recovered from feces of 11 calves (16.4%), and statistical analysis revealed no association between the presence of Salmonella spp. and clinical signs of diarrhea or age. Virulence factors of Escherichia coli were identified in 103 strains: eae (7), K99/STa (7), Stx1 (7), Stx1/eae (36), Stx1/Stx2/eae (2), Stx2 (43), and Stx2/eae (1). There was statistical association between diarrheic animals carrying E. coli Stx1/eae (+) in their feces at 2 and 4 weeks of age (P = 0.003) and E. coli Stx2 (+) at 5 weeks of age (P = 0.03). Rotavirus was detected in 49 (5.76%) fecal samples collected from 33 calves (49.2%). The presence of rotavirus was correlated with diarrheic feces (P < 0.0001) rather than feces with normal consistency. There was a significant relationship between age group and diarrhea (P = 0.001). Bovine coronavirus (BCoV) was detected in 93 fecal samples collected from 46 calves (68.6%). There was an association (P < 0.0001) between diarrheic animals positive for BCoV and age groups. The results demonstrate the importance of the pathogens studied in the etiology of diarrhea in calves.

The term eHealth (or telemedicine, telehealth) has been used to describe activities that employ information and telecommunication technologies to deliver health care. Distance is an important factor hindering the delivery of many important services, such as diagnosis, treatment, prevention, health promotion, and health research assessment. Although eHealth can provide interesting solutions such as a second specialist opinion in geographically isolated areas, a large number of ethical and legal issues must be considered. It is essential to discuss, among others, aspects relating to safety and confidentiality; professional accountability; technical standards relating to digital recording, storage, and transmission of clinical data; copyright; authorization from professional regulatory bodies; and licensing for the remote practice of medicine. In Brazil, the Federal Council of Medicine has already established rules for telemedicine; however, it is still necessary to further this discussion to involve the entire health care sector. Since there are many eHealth projects being developed in Brazil, there is an urgent need to design protocols and training programs for all professionals involved.

Despite today’s widespread reference to sustainability, initiatives are still quite incipient. Ecovillages are communities that carry out an array of sustainable practices and aim to influence society as models for alternative lifestyles. The goal of this paper is to analyze the meanings associated with these communities in the academic literature and their relevance to sustainability debates. Regardless of the conceptual imprecision of the term ‘ecovillage’ and important challenges and limitations regarding their social role in society, ecovillage initiatives (many that are educational) have propagated by diffusing alternative ideas and practices throughout society. They are increasingly linked with other movements and social institutions, functioning as key nodes in sustainability-oriented networks. As they promote concrete actions in the construction of societal alternatives, ecovillages significantly contribute to efforts of rethinking sustainability.

RESUMO Além dela, tramitam no Congresso Nacional alguns anteprojetos dispondo sobre o uso de animais para a t i v i d a d e s d e e n s i n o e p e s q u i s a . F i n a l m e n t e , s ã o apresentadas na íntegra as normas adotadas pelo Colégio

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