Resumo
Background: Rabies is a zoonotic disease caused by rabies virus, the genus Lyssavirus e family Rhabdoviridae. The commonest way of rabies transmission is by the bite of an infected mammal. Bites by rabid animals generally inoculate virus-laden saliva through the skin into muscle and subcutaneous tissues. Rabies has previously been regarded as 100% lethal. In South America, rabies in cattle is transmitted by vampire bats Desmodus rotundus mainly resulting in a major economic problem and public health. The present study retrospectively analyzed data from cattle affected by rabies registered between 2002 and 2007, evaluating the epidemiological, clinical and pathological and immunohistochemistry studies.Materials, Methods & Results: This retrospective study included epidemiological, clinical, pathological, direct immunofluorescence, and immunohistochemistry fi ndings from 26 cattle affected by rabies diagnosed by the Laboratory of Veterinary Pathology, UFRGS, Porto Alegre, RS, Brazil in the period from 2002 to 2007. The samples were selected from a histological diagnosis of lesions characteristic of rabies or positive direct immunofl uorescence for rabies where samples were available for histological examination. The central nervous system (CNS) samples of cattle were reported in 10% formalin fi xed, routinely processed for histology, embedded in paraffin, cut at 5 µm and stai
Background: Rabies is a zoonotic disease caused by rabies virus, the genus Lyssavirus e family Rhabdoviridae. The commonest way of rabies transmission is by the bite of an infected mammal. Bites by rabid animals generally inoculate virus-laden saliva through the skin into muscle and subcutaneous tissues. Rabies has previously been regarded as 100% lethal. In South America, rabies in cattle is transmitted by vampire bats Desmodus rotundus mainly resulting in a major economic problem and public health. The present study retrospectively analyzed data from cattle affected by rabies registered between 2002 and 2007, evaluating the epidemiological, clinical and pathological and immunohistochemistry studies.Materials, Methods & Results: This retrospective study included epidemiological, clinical, pathological, direct immunofluorescence, and immunohistochemistry fi ndings from 26 cattle affected by rabies diagnosed by the Laboratory of Veterinary Pathology, UFRGS, Porto Alegre, RS, Brazil in the period from 2002 to 2007. The samples were selected from a histological diagnosis of lesions characteristic of rabies or positive direct immunofl uorescence for rabies where samples were available for histological examination. The central nervous system (CNS) samples of cattle were reported in 10% formalin fi xed, routinely processed for histology, embedded in paraffin, cut at 5 µm and stai
Resumo
Background: : : : Animals with extensive cutaneous lesions remain hospitalized for long periods. In addition to increasing treatment costs, this also causes stress in these animals. Low-power laser is widely used to support tissue repair processes. Its use in the treatment of cutaneous wounds has been studied, as it reduces the wound healing period and the consequences caused by the lesion. The study aimed to evaluat the wound healing process of experimental cutaneous wounds in rabbits with the use of laser therapy. Materials, Methods & Results: Ten healthy New Zealand rabbits were used in the study, which were divided in two groups (n=5). Skin biopsies were carried out on day 16 in Group 1 and on day 8 in Group 2. The animals were under general anesthesia for the experimental cutaneous lesion to be carried out. Two 1cm2 wounds were made on the back of each animal. The lesions were measured by a pachymeter in the immediate postoperative period, then covered with sterile gauze and maintained with rubber bandages. The animals were treated only with Tramadon 3 mg.kg-1 twice a day, during 3 days. Only the lesions on the right side of the animals were irradiated regularly, on each side of the wound, at a distance of 0.5 cm from the margin. The equipment used was a 660nm wavelength AlGaInP laser diode (Laserpulse, Ibramed), pulsed at a frequency of 20 Hz, at a dose of 3J and s
Resumo
Background: : : : Animals with extensive cutaneous lesions remain hospitalized for long periods. In addition to increasing treatment costs, this also causes stress in these animals. Low-power laser is widely used to support tissue repair processes. Its use in the treatment of cutaneous wounds has been studied, as it reduces the wound healing period and the consequences caused by the lesion. The study aimed to evaluat the wound healing process of experimental cutaneous wounds in rabbits with the use of laser therapy. Materials, Methods & Results: Ten healthy New Zealand rabbits were used in the study, which were divided in two groups (n=5). Skin biopsies were carried out on day 16 in Group 1 and on day 8 in Group 2. The animals were under general anesthesia for the experimental cutaneous lesion to be carried out. Two 1cm2 wounds were made on the back of each animal. The lesions were measured by a pachymeter in the immediate postoperative period, then covered with sterile gauze and maintained with rubber bandages. The animals were treated only with Tramadon 3 mg.kg-1 twice a day, during 3 days. Only the lesions on the right side of the animals were irradiated regularly, on each side of the wound, at a distance of 0.5 cm from the margin. The equipment used was a 660nm wavelength AlGaInP laser diode (Laserpulse, Ibramed), pulsed at a frequency of 20 Hz, at a dose of 3J and s
Resumo
Background: Rabies is a zoonotic disease caused by rabies virus, the genus Lyssavirus e family Rhabdoviridae. The commonest way of rabies transmission is by the bite of an infected mammal. Bites by rabid animals generally inoculate virus-laden saliva through the skin into muscle and subcutaneous tissues. Rabies has previously been regarded as 100% lethal. In South America, rabies in cattle is transmitted by vampire bats Desmodus rotundus mainly resulting in a major economic problem and public health. The present study retrospectively analyzed data from cattle affected by rabies registered between 2002 and 2007, evaluating the epidemiological, clinical and pathological and immunohistochemistry studies.Materials, Methods & Results: This retrospective study included epidemiological, clinical, pathological, direct immunofluorescence, and immunohistochemistry fi ndings from 26 cattle affected by rabies diagnosed by the Laboratory of Veterinary Pathology, UFRGS, Porto Alegre, RS, Brazil in the period from 2002 to 2007. The samples were selected from a histological diagnosis of lesions characteristic of rabies or positive direct immunofl uorescence for rabies where samples were available for histological examination. The central nervous system (CNS) samples of cattle were reported in 10% formalin fi xed, routinely processed for histology, embedded in paraffin, cut at 5 µm and stai
Background: Rabies is a zoonotic disease caused by rabies virus, the genus Lyssavirus e family Rhabdoviridae. The commonest way of rabies transmission is by the bite of an infected mammal. Bites by rabid animals generally inoculate virus-laden saliva through the skin into muscle and subcutaneous tissues. Rabies has previously been regarded as 100% lethal. In South America, rabies in cattle is transmitted by vampire bats Desmodus rotundus mainly resulting in a major economic problem and public health. The present study retrospectively analyzed data from cattle affected by rabies registered between 2002 and 2007, evaluating the epidemiological, clinical and pathological and immunohistochemistry studies.Materials, Methods & Results: This retrospective study included epidemiological, clinical, pathological, direct immunofluorescence, and immunohistochemistry fi ndings from 26 cattle affected by rabies diagnosed by the Laboratory of Veterinary Pathology, UFRGS, Porto Alegre, RS, Brazil in the period from 2002 to 2007. The samples were selected from a histological diagnosis of lesions characteristic of rabies or positive direct immunofl uorescence for rabies where samples were available for histological examination. The central nervous system (CNS) samples of cattle were reported in 10% formalin fi xed, routinely processed for histology, embedded in paraffin, cut at 5 µm and stai