The occurrence of diseases transmitted by ticks in dogs is very frequent in Brazil, among these diseases we can highlight the ehrlichiosis and anaplasmosis, which are caused by Ehrlichia canis and Anaplasma platys, respectively. The objective of this study was to survey the occurrence of these pathogens in blood samples from domiciled and stray dogs from the city of Belém, Pará. Two hundred and seventy six dogs were sampled for convenience, and the DNA extracted from the blood of these animals was submitted to nested-PCR for research of E. canis and A. platys. E. canis DNA was detected in 39.4% (109/276) and A. platys DNA in 23.1% (64/276) of the samples, there was a statistically significant difference between the frequency of these agents (P<0.0001), and there was coinfection in 13.4% (37/276) of animals. The frequency of detection of these parasites was higher in stray dogs than in those domiciled for both E. canis (OR=2.84) and A. platys (OR=10.5). Considering the results, it was possible to conclude that E. canis and A. platys are present in the studied population, with stray dogs being more affected by these parasites.

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Triatomines (Hemiptera: Reduviidae) are hematophagous insects with wide geographic distribution in the American continent, occurring from the southern of the Argentina to the southern United States of America.There are approximately 152 current valid species of triatomines and some of these species are important in public health because they are vectors of the aetiologic agent of Chagas disease, protozoan parasite

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ABSTRACT Leptospirosis is a zoonosis transmitted by contact with infected urine or water contaminated with the agent. Searches for Leptospira spp. in reptiles are scarce although most species have contact with aquatic environments. We evaluated the presence of anti-Leptospira spp. antibodies in Podocnemis expansa housed at the Amazonian Zoobotanical Garden, in Belém, Pará state, Brazil. We analyzed 74 serum samples through the microscopic agglutination test using 31 live antigens from different Leptospira spp. serogroups. Thirty samples (40.5%) were positive against Leptospira spp., with titrations between 100 and 3,200 for one or more serogroups. The Hebdomadis serogroup was the most prevalent, with 26 (87%) out of the 30 positive samples, followed by Djasiman, with two (7%) and Celledoni and Bataviae with one (3%) sample each. The detection of anti-Leptospira spp. agglutinins in P. expansa suggests that the aquatic environment is a transmission route for this pathogen among chelonians.

Os animais de companhia estão cada vez mais presentes nos lares brasileiros, tendo convívio direto com seres humanos e assumindo papel de grande importância na relação familiar, porém ainda há uma grande demanda de animais abandonados em todo o mundo, tendo os abrigos como um local de acolhimento por tempo indeterminado, mas com chances de proliferação de doenças tendo como fator influenciador a aglomeração de animais nesses locais. Diante disso, objetivou-se com esse estudo investigar os principais agentes dermatológicos presentes em gatos domésticos habitantes de um abrigo em Belém-PA. Foram realizadas coletas de material biológico de 50 gatos domésticos, que passaram por exames laboratoriais como cultura fúngica, tricograma, citologia de orelhas e exame parasitológico de cerúmen. Observou-se que 58% dos animais possuíam a levedura malessezia, assim como 36% destes apresentaram resultado positivo na avalição parasitológica sendo o agente Otodectes cynotis o que prevaleceu nas amostras analisadas, além da presença do ácaro lynxacarus radovskyi em 42% dos animais. Dessa forma, pode-se concluir que as enfermidades dermatológicas são de grande relevância em animais que convivem em abrigos e necessitam de atenção quanto a sua prevenção, controle e tratamento.

Free-living Columbidae are considered the second largest reservoir of Chlamydia psittaci, transmitting the agent to humans and other animals. The present study aimed to identify the presence of Chlamydia spp. in samples of lung and stool collected from free-living domestic pigeons (Columba livia domestica) captured at the Mangal das Garças Naturalistic Park in Belém, Pará, Brazil, using semi-nested polymerase chain reaction, and also correlate the clinical and post-mortem findings of animals positive for Chlamydia spp. Among the 45 animals analyzed, 10 (22.2%) were positive for Chlamydia spp.; the positive findings originated from 5 (50%) lung samples and 5 (50%) stool samples, with no overlap between animals and samples. None of the animals evaluated in this study showed clinical signs of chlamydiosis; rather, these were only found during necropsy of positive animals, mainly through pulmonary, hepatic, splenic, and intestinal changes. These findings demonstrate that free-living pigeons can be reservoirs of Chlamydia spp. and transmit the agent silently to humans and animals, which is concerning for public and animal health, since these birds are easily found in urban areas cohabitating with humans, other species of birds, and other animals.

Feline sporotrichosis is a subcutaneous, infectious, and contagious mycosis, with zoonotic characteristics. Until now there are no reports on the isolation of Sporothrix sp. in cats in the state of Pará. The present work aimed to isolate Sporothrix spp. from a cat with possible zoonotic involvement in the city of Belém, Pará. Through the active search for suspected cases of sporotrichosis, carried out by members of the Center for the Control of Zoonoses of Belém (CCZ, Belém) the suspicion of the disease in a feline was reported, with probable transmission to its owner. Clinical evaluation was performed, and biological material was collected from the animal for identifying the agent. Microscopic evaluation of the collected sample and microbial culture confirmed the presence of Sporothrix sp. in the sample. This study is the first to report the microbiological isolation of Sporothrix sp. in a cat in the metropolitan region of Belém, Pará, with possible zoonotic transmission. This indicates a probable underreporting of cases, an unknowing regarding the reality of health conditions and the need for more accurate and comprehensive evaluation of sporotrichosis in this region.