The bi-dimensional ADHD structure proposed by the DSM demonstrated both construct and discriminant validity problems when used in the adult population, since inattention is a much more relevant feature in the adult phenotype. The use of the DSM-5 criteria results in a higher prevalence of ADHD when compared to those obtained by DSM-IV, and prevalence would increase almost threefold when considering current ADHD syndrome. These findings suggest a need for further refinement of the criteria for its use in the adult population.

Bovine babesiosis is a disease with a febrile and hemolytic course, which together with anaplasmosis form the so-called bovine parasitic sadness complex (TPB). In Brazil, babesiosis is transmitted to cattle by the tick Ripicephalus (Boophilus) microplus, which occurs in practically the entire national territory. The economic impacts of babesiosis include the drop in animal performance, with reduced milk production, weight loss, abortion and mortality. Infection with the Babesia bovis and Babesia bigemina protozoa causes intravascular hemolysis with potentially fatal effects. In infections by B. bovis, a severe neurological condition can be observed due to congestion of the brain capillaries, with parasitized red blood cells. The consequent hypoxia in the central nervous system culminates in manifestations of motor incoordination, aggressiveness and pedaling movements. In addition to fever and prostration, babesiosis caused by B. bigemina has hemoglobinuria. Knowing aspects of epidemiology, clinical signs, therapeutic conduct and forms of control and prophylaxis related to bovine babesiosis is essential for field veterinarians. In view of the great importance of bovine babesiosis and its deleterious effects on livestock, this review addresses aspects about epidemiology, the biological cycle of protozoa, clinical signs, post-mortem injuries and subsidies for the diagnosis of the disease.

Hydatidosis and cysticercosis are parasitoses caused by the larval forms of the cestodes Equinococcus spp. and Taenia spp., which belong to the Taeniidae family. Their definitive hosts are canids and humans, respectively, with ruminants as the intermediate hosts and humans as an accidental host of both diseases. These parasites are responsible for large economic losses in slaughterhouses due to condemnation of carcasses and by-products. The present study reports the mean incidence rates of hydatidosis and cysticercosis in cattle slaughtered in the southern region of Rio Grande do Sul state, Brazil. The incidence rates observed between 2013 and 2016 were 19.96% and 0.9%, respectively, with decreased tendency of occurrence of both diseases in those years. Despite the downward tendency of the diseases, hydatidosis presented high incidence. Hydatidosis performance over the years was characterized by significant increase in the number of cases, followed by marked decrease. Cysticercosis presented a decrease in number of cases at the beginning and the end of each year. These diseases have a significant socioeconomic impact as they are responsible for large losses in the livestock industry, due to reduced productivity and carcass condemnation, and represent a risk to public health.

A raiva é uma enfermidade viral que acomete animais silvestres e domésticos relatada no Brasil desde 1911. Sob o ponto de vista de saúde pública é imperativo que pessoas que tenham contato com animais sejam submetidas a vacinação. O vírus da raiva é neurotrópico e altamente letal a humanos e animais. Os prejuízos inerentes a raiva são de difícil quantificação e a cadeia produtiva de bovinos é a mais afetada. O presente trabalho aborda de maneira sucinta aspectos etiológicos da raiva, bem como fatores epidemiológicos envolvidos na manutenção da enfermidade em sistemas produtivos e, no meio silvestre e urbano. Os sinais clínicos em animais acometidos pela enfermidade foram elencados conforme as espécies e formas clínicas de apresentação da raiva, a saber, paralítica e furiosa. Também foram abordados tópicos sobre as principais alterações de necropsia, lesões histopatológicas da enfermidade com algumas peculiaridades referentes a distribuição e características das lesões. Foram listadas as principais formas de diagnóstico da raiva em animais de produção e medidas de controle e profilaxia.

Infection by Fasciola hepatica is an important cause of economic loss in cattle raised in Brazil and others countries. In slaughterhouses, the losses are mainly associated with condemnation of livers; however, it is believed that these losses can extend to diminished carcass yield and productivity throughout the life of the animals. Three slaughterhouses with a daily routine of approximately 15-20 cattle slaughters were monitored from July 2016 to November 2017. After sample collection, weighing, and liver assessment, statistical studies were conducted to determine disease prevalence and measurement of economic losses caused by fasciolosis through condemnation of the organ of choice of the parasite. Of the 210 livers assessed, 79 (37.6%) were condemned because of presence of F. hepatica, 87 (41.4%) were considered appropriate for human consumption, and 44 (20.9%) were considered inappropriate because of some other macroscopic lesions. The aim of this study was to estimate the prevalence of fasciolosis, correlate epidemiological and clinical-pathological aspects, and estimate the economic losses caused by the disease. It is estimated that the losses in southwestern Rio Grande do Sul state could reach R$ 36,943,532.60 (37.6%; 95% CI = 30,753,525.80 - 43,526,55.65) or US$ 11,437,626.20 (37.6%; 95% CI = 9,521,215.40 - 13,475,713.80) only because of condemnation of livers.