Gabriela Hemylin Ferreira Moura

Research on viral agents associated with feline reproductive problems reveals a high association with feline panleukopenia virus

Highlights • CPPV-1 was found in all females of the study, tested with qPCR.• Was found CPPV-1 in fetal/maternal tissue in the post-mortem examination.• Feline females (with and without Reproductive Failures) were negative for commonly-occurring RF viruses in the same (FIV, FeLV e FHV-1).• Females showed clinical signs only related to RF and abnormalities WBCC.• These results provide the first description of an FPV agent causing only RF-related clinical signs in queens.

Risk factors for trypanosomiasis by Trypanosoma vivax in cattle raised in Rio Grande do Norte state

Arq. Inst. Biol., v.85, 1-6, e0232016, 2018 RESUMO: Objetivando determinar a prevalência de anticorpos anti-Trypanosoma vivax e os possíveis fatores de risco associados à infecção em bovinos no estado do Rio Grande do Norte, nordeste do Brasil, o trabalho consistiu em um estudo epidemiológico transversal, com amostragem não probabilística por conveniência, no qual foram analisadas, por meio da reação de imunofluorescência indireta, 467 amostras de soro sanguíneo de bovinos. Das amostras testadas, 42 foram reagentes para anticorpos IgG anti-Trypanosoma vivax, o que correspondeu à prevalência de 9,0%. Os fatores de risco que influenciaram a ocorrência da tripanossomose foram: exploração com finalidade do tipo leite, criação de bovinos de raça europeia, categoria animal vaca em lactação, aquisição de animais, forrageamento das margens de açudes e rios, além da presença de vetores mecânicos. A alta prevalência encontrada em animais de corte (59,5%), fêmeas (95,2%), raça europeia (88,1%), vacas em lactação (85,7%), pastagem a margens de açudes e rios (95,2%), além da presença de vetores mecânicos (81%) e aquisição de animais (88,1%), indica a expansão da tripanossomose no semiárido do Nordeste, e as informações obtidas poderão esclarecer os fatores epidemiológicos que determinam a ocorrência da tripanossomose por T. vivax na região.

Infectious Causes of Abortion, Stillbirth and Neonatal Death in Bitches

Problems in gestational development in dogs can be determined by infectious and non‐ infectious causes. Among the non‐infectious causes, trauma during pregnancy, genetic characteristics of the animal, deficit nutrition, thyroid dysfunction, maternal problems and hormonal disorders are found. The majority of the cases are in relation to infectious diseases, one should consider viral, bacterial, fungal and protozoal, which can interfere directly or indirectly in the foetal development. The progression of foetal development may be affected by the direct action of the microorganisms to overcome the placenta, but they are also able to affect pregnancy and release placental toxins by inflammatory processes and, may still cause maternal pathologies, which entail problems such as hyperthermia, hypoxia and endotoxemia, which can result in abortion. Several diseases can trigger pregnancy loss in dogs. This action can be direct by microorganisms, as well as indirectly triggering other problems that lead to abortion. This chapter discusses the infectious aetiologies of reproductive failures (abortion, stillbirth and neonatal death) in bitches.