21 research outputs found
Profile of American tegumentary leishmaniasis in transmission areas in the state of Minas Gerais, Brazil, from 2007 to 2017.
BACKGROUND: American tegumentary leishmaniasis (ATL) is a widespread anthropozoonosis caused by protozoa of the genus Leishmania and is considered a serious public health problem. The aim of this study was to provide a descriptive analysis of confirmed ATL cases and evaluate the spatial distribution of ATL in high-risk transmission areas from the state of Minas Gerais, Brazil. METHODS: An ecological, analytical, and retrospective study of the confirmed cases of ATL in Minas Gerais from 2007 to 2017 was conducted. To characterize these cases, multiple correspondence analysis and georeferencing of the ATL prevalence rates in the municipalities were conducted based on variables obtained at Sistema Nacional de Agravos de Notificação and Instituto Brasileiro de Geografia e Estatística databases. RESULTS: There were 13,025 confirmed cases of ATL from 74.4% (635) municipalities of Minas Gerais, corresponding to a prevalence rate of 66.5 cases for every 100,000 inhabitants. Males aged 20 to 59 years and individuals who attended elementary school were most affected with ATL. Multiple correspondence analysis presented an accumulated qui-squared value of 44.74%, proving that there was a relationship between the variables, including ethnicity, age, pregnancy status, zone of infection, and number of cases. CONCLUSION: We confirmed that ATL is endemic to Minas Gerais, and there is high risk of infection within the municipalities due to a high rate of parasite transmission. The occurrence of infection in children, pregnant women, and the indigenous population demonstrates the need for the government to expand social policies aimed at vulnerable groups
Phylogenetic Group Determination of Escherichia coli
This study analyzes the occurrence and distribution of phylogenetic groups of 391 strains of Escherichia coli isolated from poultry, cattle, and water buffalo. The frequency of the phylogroups was A = 19%, B1 = 57%, B2 = 2.3%, C = 4.6%, D = 2.8%, E = 11%, and F = 3.3%. Phylogroups A (P<0.001) and F (P=0.018) were associated with E. coli strains isolated from poultry, phylogroups B1 (P<0.001) and E (P=0.002) were associated with E. coli isolated from cattle, and phylogroups B2 (P=0.003) and D (P=0.017) were associated with E. coli isolated from water buffalo. This report demonstrated that some phylogroups are associated with the host analyzed and the results provide knowledge of the phylogenetic composition of E. coli from domestic animals
Epidemiological Characterization and Risk Assessment Associated with the Presence of Diptera Order in Laying Poultry Farms
Background: Health aspects of flocks of laying chickens, such as the occurrence of infestations by parasites and poultry pests, influence significantly the productivity indicators. In recent years, Brazilian poultry has gone through a scientific and technological evolution which resulted in high density poultry hens in the laying sheds and an increase of the occurrence of ectoparasites such as Diptera. The presence of these flies have caused negative impacts for poultry farming, since these may be responsible for the increase of stress and disease emergence and, in addition, reduction of productivity. In this context, the control of synanthropic Diptera is one of the challenges of the poultry farmers and professionals of this area. This study was carried to assess and characterize the risks for the presence of flies in chicken houses of laying farms in the state of Minas Gerais.Materials, Methods & Results: Was used a secondary database and adapted for this study, with information from 402 chicken houses of 42 laying hens commercial properties. The variables used to compose the correspondence model were selected through chi-square tests (P ≤ 0.05). A risk index was built to the presence of flies from variables considered as risk factors for these ectoparasites. In addition, a study of the spatial analysis was carried to evaluate the intensity of chicken houses of poultry farms with the presence of flies. For this, a Kernel map was produced using the QGIZ 2.18.1 software, georreferencing the regions of state of Minas Gerais that have these ectoparasites. It was observed the presence of flies in 253 chicken houses evaluated, which corresponds to a frequency of 62.9%, with the most present flies were Chrysomya spp. 37.3%, M. domestica 34.3%, Fannia spp. 16% and Stomoxys spp. 14%. The graph of the correspondence analysis produced for the epidemiological characterization of the presence of flies presented an accumulated chi-square value of 56.05%. There was an association of the risk index with removal interval and the humidity of the manure and with the type of installation of chicken houses. Farms with chicken houses that create their birds on the ground present a lower risk for the presence of Diptera. In addition, when the removal of the manure is performed manually and is not done periodically, the presence of flies in the chicken houses is observed. It was verified that clusters located in the messoregion south/southwest of Minas Gerais and between the west and metropolitan mesoregion of Belo Horizonte with chicken houses that have the presence of flies.Discussion: The accumulation and permanence of manure can occur in less technical farms that have laying hens kept in confinement with high densities. In the case of Diptera, the greater the interval of removal of the manure below cages, the greater the risk for their presence, combined with the high densities of the birds that contribute to a faster accumulation of manure. The humidity of the manure is another important factor for the development of flies. The risk is high when chicken feces are liquefied, due to the fact that larvaes of flies need a moist substrate for survival. These results provide knowledge about the epidemiology of flies, in addition to demonstrate the profile of laying farms in the state of Minas Gerais. The implementation of certain management measures and the investment in technification of the chicken houses could reduce the risks of possible infestations in the flocks, besides the negative effects resulting from this ectoparasitism
Spatio-temporal study of diagnosis of rabies in vampire bats in Sergipe (Brazil), between 1987 and 2014
Rabies is a zoonosis of great importance for human and animal health, being responsible for a progressive and acute encephalitis in humans and animals. Considering that the correct viral identification has serious implications for the prophylaxis and treatment, is important a diagnostic system specifically designed for monitoring the infection cases. The objective of the study was to describe the occurrence of rabies in hematophagous bats (Desmodus rotundus) analyzing many diagnoses performed in the state of Sergipe. The objective of this study was to describe the occurrence of rabies in hematophagous bats (Desmodus rotundus) from an analysis of the diagnoses performed in the state of Sergipe. An observational, descriptive and retrospective study was conducted with the evaluation of 935 rabies diagnoses in bats (D. rotundus) between 1987 and 2014. It was noticed that only one case was positive in the city of Aracaju in the year 2000 and no positive bat was identified with the rabies virus in the rural area. The results show the need to increase the monitoring of rabies in other species of non-hematophagous bats, and especially in other wild reservoirs. It is suggested that the monitoring of rabies take into account the specific ecosystem of each region, since Brazil has continental dimensions and a great biological diversity
Evaluation and comparison between methods of measurement of systolic blood pressure in healthy conscious cats
Após validação de dois diferentes métodos de mensuração de pressão arterial sistólica (PAS) não invasivos ou indiretos (oscilométrico e Doppler vascular) com o invasivo ou direto (cateterização arterial padrão ouro) em 12 gatos hígidos anestesiados de mesma faixa etária, os métodos não invasivos foram avaliados e comparados em 24 gatos hígidos e conscientes, divididos em quatro grupos de idade. Em cada animal, procedeu-se à mensuração da pressão pelos métodos Doppler e oscilométrico. O método oscilométrico foi o primeiro a ser realizado, e, logo em seguida, o método Doppler. Os valores considerados foram obtidos das médias de sete medidas consecutivas para cada método, com intervalo de 30 segundos entre elas. A primeira medida e as medidas discrepantes (variação ˃ 20% PAS), obtidas com sinais óbvios de estresse e/ou com movimentação do animal, foram descartadas. Os métodos de mensuração oscilométrico e Doppler, embora tenham apresentado médias estatisticamente diferentes em todos os grupos, quando comparados em cada grupo, apresentaram uma correlação significativa, alta e positiva. Ou seja, sempre que for obtido um valor elevado por um método, o mesmo fato ocorrerá com o outro método e vice-versa. Clinicamente, a diferença observada não é relevante, uma vez que a diferença média dos valores obtida pelos dois métodos, em cada grupo, foi menor que 1,1%.After two different validation systolic blood pressure measurement methods (PAS), not invasive or indirect (oscillometric and doppler vascular) with invasive or direct (arterial catheterization - Gold Standard) in 12 anesthetized healthy cats of the same age group, not invasive methods were evaluated and compared in 24 healthy conscious cats, divided into four age groups. In each animal, we proceeded to measure the pressure by Doppler and oscillometric methods. The oscillometric method was the first to be performed, and, shortly thereafter, the doppler method. The values considered were obtained from averages from seven consecutive measurements for each method with an interval of thirty seconds between them. The first measurement and disparate measurements (range ˃ 20% PAS) obtained with obvious signs of stress and / or animal movement were discarded. Methods of oscillometric and doppler measurement, although statistically different averages were shown in all groups when compared, each group showed a significant high positive correlation, meaning that when a high value is obtained by a method, the same occurs with the other method, and vice versa. Clinically, the observed difference is not relevant since the mean difference values obtained by the two methods, in each group was lower than 1.1%
Ocorrência de casos de leishmaniose tegumentar americana: uma análise multivariada dos circuitos espaciais de produção, Minas Gerais, Brasil, 2007 a 2011
Human rabies post-exposure prophylaxis: a review of the treatment of accidents involving domestic cats
Rabies is an anthropozoonosis that presents approximately 100% lethality and expensive preventive assistance. Many human post-exposure anti-rabies treatments indicated for people at risk of exposure to rabies virus, usually due to some aggression by a mammalian animal, are instituted annually. This study aimed to evaluate the initial care of post-exposure prophylaxis of human rabies in Belo Horizonte between 2007 and 2016, involving accidents with domestic cats. It was found 71.1% agreement between the treatments instituted by health services and the protocol of the Ministry of Health. Treatments classified as insufficient totaled 18.3% and excessive, 10.6%. The animals were healthy in 68% and observable in 68.4% of the cases. Treatments involving the use of anti-rabies vaccine totaled 87.7%. The most frequent treatment adopted by the health services was observing the animals associated with the human anti-rabies vaccination in 56.7% of the cases. Imperfections in the filling of the notifications must be revised to enable improvements for future analyses. As for human prophylactic anti-rabies care, forming a multidisciplinary health team including veterinarians would be well on the way to improving the service offered
Ocorrência de casos de leishmaniose tegumentar americana: uma análise multivariada dos circuitos espaciais de produção, Minas Gerais, Brasil, 2007 a 2011
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Previous issue date: 2018Secretaria de Estado de Saúde de Minas Gerais. Belo Horizonte, MG, Brasil / Universidade Federal de Minas Gerais. Escola de Veterinária. Belo Horizonte, MG, Brasil.Secretaria de Estado de Saúde de Minas Gerais. Belo Horizonte, MG, Brasil.Secretaria de Estado de Saúde de Minas Gerais. Belo Horizonte, MG, Brasil.Universidade Federal de Minas Gerais. Escola de Veterinária. Belo Horizonte, MG, Brasil.Fundação Oswaldo Cruz. Escola Nacional de Saúde Pública Sergio Arouca. Rio de Janeiro, RJ, Brasil.Universidade Federal de Minas Gerais. Escola de Veterinária. Belo Horizonte, MG, Brasil.O objetivo deste estudo foi explicar a associação dos fatores socioambientais e dos grandes usos da terra com a ocorrência de casos de leishmaniose tegumentar americana (LTA) nos circuitos espaciais de produção, no Estado de Minas Gerais, Brasil. Trata-se de um estudo ecológico do tipo analítico, baseado em dados secundários de casos de LTA dividido por triênio, no período entre 2007 a 2011, cujas unidades de análise foram os municípios pertencentes aos circuitos espaciais. Duas etapas distintas foram realizadas, sendo a elaboração de mapas temáticos com a identificação dos circuitos a primeira, e na segunda
etapa um novo indicador casos de LTA por densidade demográfica foi associado com indicadores socioambientais e dos grandes usos da terra submetidos à análise multivariada de componentes principais (ACP). Para o período avaliado, identificou-se três circuitos distribuídos nas mesorregiões Norte de Minas Gerais, Vale do Rio Doce e Região Metropolitana de Belo Horizonte. Houve forte associação dos casos de LTA por densidade demográfica com lavoura temporária, pastagem natural, floresta natural, terras inaproveitáveis e população rural, e uma fraca associação com pastagem plantada. A associação de casos com variáveis dos grandes usos da terra em diferentes perfis agropecuários
demonstra o caráter ocupacional da LTA, associado principalmente
com trabalhadores da zona rural. A associação da doença com as variáveis ambientais e deficiência das condições de saneamento básico também demonstram relevância no perfil de transmissão nos circuitos espaciais de produção em Minas Gerais.The aim of this study was to explain the association
between social-environmental factors
and major land uses and the occurrence of cases
of American tegumentary leishmaniasis (ATL) in
the spatial circuits of production in Minas Gerais
State, Brazil. This was an analytical-type ecological
study based on secondary data on ATL divided
by three-year period from 2007 to 2011, in which
the analytical units were municipalities belonging
to the spatial circuits. Two distinct stages were
performed. The first was the elaboration of thematic
maps with identification of the circuits. In
the second, a new indicator, ATL cases by population
density, was associated with social-environmental
indicators and major land uses, submitted
to multivariate principal components analysis
(PCA). During the periods studied, three circuits
were identified, distributed in the major regions
of Northern Minas Gerais, Rio Doce Valley, and
Greater Metropolitan Belo Horizonte. There was
a strong association between ATL by population
density and temporary crops, natural pasture,
natural forest, unusable lands, and rural population,
and a weak association with planted pasture.
The association of cases with the major land uses
variable in different agricultural profiles shows
the occupational nature of ATL, associated mainly
with rural workers. The association of the disease
with environmental variables and deficient basic
sanitation also proved relevant in the transmission
profile in spatial circuits of production in Minas
Gerais.El objetivo de este estudio fue explicar la asociación
de los factores socioambientales y explotación
a gran escala de la tierra, con la ocurrencia
de casos de leishmaniasis tegumentaria americana
(LTA) en los circuitos espaciales de producción, en
el Estado de Minas Gerais, Brasil. Se trata de un
estudio ecológico de tipo analítico, basado en datos
secundarios de casos de LTA, dividido por trienios,
en el período entre 2007 a 2011, cuyas unidades
de análisis fueron los municipios pertenecientes a
los circuitos espaciales. Se realizaron dos etapas
distintas, consistiendo la primera en la elaboración
de mapas temáticos con la identificación de los circuitos,
y la segunda etapa en un nuevo indicador
de casos de LTA por densidad demográfica, que se
asoció con indicadores socioambientales y a dos
explotaciones a gran escala de la tierra, sometidos
a un análisis multivariado de componentes principales
(ACP). Para el período evaluado, se identificaron
tres circuitos distribuidos en las mesorregiones
del norte de Minas Gerais, Vale do Rio Doce
y región metropolitana de Belo Horizonte. Hubo
una fuerte asociación de los casos de LTA por densidad
demográfica con el trabajo temporal, pasto
natural, bosque natural, tierras inaprovechables y
población rural, y una escasa asociación con pasto
plantado. La asociación de casos con variables
de las explotaciones a gran escala de la tierra, con
diferentes perfiles agropecuarios, demuestra el carácter
ocupacional de la LTA, asociado principalmente
a trabajadores de la zona rural. La asociación
de la enfermedad con variables ambientales
y deficiencia en las condiciones de saneamiento
básico, también demuestran relevancia en el perfil
de transmisión en los circuitos espaciales de producción
en Minas Gerais
Phylogenetic Group Determination of Escherichia coli Isolated from Animals Samples
This study analyzes the occurrence and distribution of phylogenetic groups of 391 strains of Escherichia coli isolated from poultry, cattle, and water buffalo. The frequency of the phylogroups was A = 19%, B1 = 57%, B2 = 2.3%, C = 4.6%, D = 2.8%, E = 11%, and F = 3.3%. Phylogroups A ( < 0.001) and F ( = 0.018) were associated with E. coli strains isolated from poultry, phylogroups B1 ( < 0.001) and E ( = 0.002) were associated with E. coli isolated from cattle, and phylogroups B2 ( = 0.003) and D ( = 0.017) were associated with E. coli isolated from water buffalo. This report demonstrated that some phylogroups are associated with the host analyzed and the results provide knowledge of the phylogenetic composition of E. coli from domestic animals