Publications by authors named "H Vilhena"

Necrosis is a common finding in human and animal neoplasms. The percentage of tumor necrosis is included in tumor grading schemes in veterinary oncology; however, evaluation methods are often overlooked. Different studies have assessed the prognostic value of tumor necrosis in feline mammary tumors with contradictory results, which could be related to methodologic variability.

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In dogs, the risk of an acute hemolytic transfusion reaction at the first transfusion is negligible; however, mismatched transfusions may produce alloimmunization. To avoid fatal acute hemolytic reactions in subsequent blood transfusions, it is important to recognize blood groups and to blood type both the donor and the recipient. Prevalence of dog blood groups varies geographically and between breeds.

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Inflammation is a frequent finding in feline mammary neoplasms. Recent research suggests that the presence and location of tumour-associated immune cells might play a significant role in the clinical outcome of feline mammary carcinomas. The present study aimed to characterise the overall inflammatory infiltrates in healthy, hyperplastic/dysplastic, benign and malignant lesions of the feline mammary gland, and to evaluate its association with clinicopathological features.

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Article Synopsis
  • Dogs and cats can carry Q fever, a zoonotic disease caused by the pathogen Coxiella burnetii, with concerns about transmission during events like birthing and abortion, potentially involving ticks as vectors.
  • A study conducted in Portugal in 2012 and 2021 tested 294 dogs and cats for C. burnetii exposure using blood samples and DNA from uterine samples and ticks.
  • Results showed a significant decrease in seropositivity for C. burnetii in both dogs (from 12.6% to 1.7%) and cats (from 17.2% to 0.0%) over the nine years, indicating that exposure is low, especially in rural areas, although monitoring
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Free-roaming dogs and cats represent potential reservoirs for zoonotic vector-borne pathogens shedding to the human population. Given the health impact of these pathogens, we searched free-roaming dogs and cats included in an animal population control program from Luanda, Angola, for and hemotropic mycoplasma infection. We report the detection of (2/66; 3%), Mycoplasma haemominutum (5/66; 7.

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