Antibiótico: Tratamiento de enfermedades infecciosas causadas por bacterias como Neumonías, Carbón Sintomático, Edema maligno, Enterotoxemias, Ántrax, . Anthrax in cattle in southern Brazil: Carbúnculo hemático em bovinos no sul do Brasil: Ana Lucia SchildI,; Elisa Simone V. SallisII;. El ántrax es una infección provocada por una bacteria. Aunque se ve sobre todo en animales de pasto, como ovejas, cerdos, cabras, caballos y bueyes.
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The region where the disease occurs is characterized by low and plain lands, subject to flooding and used to cultivate rice, soybean or other grains, and for animal grazing, alternatively.
In Table 2the meteorological data from the area where outbreaks occurred are reported. Blood smears showed large Gram-positive rods, isolated or in chains, similar to B.
The lack of routine vaccination could be the reason for the increase in the number of outbreaks in this period. E O Campo, Rio de Janeiro, p.
On the other hand an increase in the number of outbreaks was reported also from Argentina and Uruguay in the last 3 years, between and Rojas et al. The occurrence of tick fever on two farms in the same period that anthrax occurred made the diagnosis of the disease difficult. Personal communication Dilave Miguel C.
In Outbreaks 1 and 5 cattle were vaccinated annually against anthrax, but Outbreak 1 started during annual vaccination. In the other outbreaks the animals were found dead, suggesting that the disease was peracute. In Outbreak 7 the farmer reported that the disease was occurring since some months ago, with sporadic deaths, and that it affected also 15 sheep out of 1, and 4 horses out of The liver was moderately enlarged, with a yellowish or dark color.
Observing the climate data Table 2it can be suggested that dry conditions can be associated with most outbreaks. Outbreaks of anthrax are frequent in tropical and subtropical countries with high annual rainfalls. In those cases, gross lesions were of severe diffuse hemorrhages of the subcutaneous tissues and serous membranes.
El ántrax (para Adolecentes)
Clinically the peracute form was more frequent, but in some outbreaks the acute form with a clinical manifestation period of hours was also observed.
Carter in the revision of the manuscript is kindly acknowledged.
Epidemiological data of those outbreaks are presented in Table 1. In Outbreak 4 cattle were introduced to the farm 9 months before the outbreak, from the municipality of Dom Pedrito.
Brotes de carbunclo bacteridiano en la provincia de La Pampa Argentina. The spleen was softened and enlarged with gelatinous liquid aspect. Guinea pigs or mice inoculated with material from the specimens sent by the practitioners or with the bacteria cultured on blood agar died hours after inoculation, presenting edema and splenomegaly at necropsy.
Sallis II ; Mauro P. Services on Demand Journal.
Cómo contraen el ántrax las personas
The three outbreaks during represent apparently an increase in the number of occurrence. The number of anthrax outbreaks from to represents 0. On this farm, the owner also mentioned that the disease occurred more than 30 years ago, and after many years of vaccination this practice was abandoned. In Outbreak 2 the farmer informed that in a neighboring farm approximately 30 cattle died with the same disease.
Outbreaks 2, 3, 6, 8 and 9 affected crossbreed beef cattle, in Outbreaks 4 and 5 the records had no information about breed, Outbreak 7 affected Red Angus and Holstein cattle, and Outbreaks 1 and 10 affected Hereford cattle. It was considered a threat to public health in USA, afterwhen the bacteria were liberated intentionally in that country Bales et al. The high temperatures may have facilitated the multiplication of B. The aim of this paper is to report outbreaks of anthrax, from January to Marchin southern Rio Grande do Sul, Brazil.
Previous reports of the disease in the region suggest that annual vaccination of cattle was the reason for the low frequency of anthrax Schild et al. This fact and also the occurrence of the acute form of the disease, with clinical signs not suggestive of anthrax, in the absence of necropsies, increase the difficulty of diagnosis.
In an outbreak in Canada, grazing at short distance from the soil during forage shortage was suggested as a probable source of infection for cattle Parkinson et al. In Argentina, between andfrom samples with suspicion of anthrax, 25 were positive.
In Outbreaks 2, 3 and 8 the disease affected 4-year-old or older cattle. The disease occurs in all South American countries and Mexico. More recently, from January to November19 outbreaks of anthrax occurred in the Departments of Treinta e Tres, Rocha, Cerro Largo, and Durazno, being 18 in cattle, and one in horses with the death of 3 horses out of The 10 outbreaks represented 0.
These specimens or the bacteria isolated were also inoculated into guinea pigs or mice subcutaneously or in mice by scarification of the tail.