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 23,843 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Similar clinical signs have been reported in calves infected either by Dictyocaulus viviparus or bovine respiratory syncytial virus. Three experiments were carried out to establish the clinical picture and the course of the disease in animals with these infections. The clinical signs of calves infected with lungworm included coughing, nasal discharge, tachypnoea, abdominal breathing and pyrexia, and auscultation of their lungs revealed increased bronchial sounds. Similar signs were also observed after infection with bovine respiratory syncytial virus, but the signs were more acute and resolved more rapidly than in animals infected with lungworm larvae. Calves infected with lungworm had more serious clinical signs after infection with bovine respiratory syncytial virus than calves, which were not infected with lungworm.
Vet Rec 1988 Sep 24
PMID:Clinical signs following experimental lungworm infection and natural bovine respiratory syncytial virus infection in calves. 297 75

A prospective cohort study was designed to describe the patterns and to determine the factors associated with the risk of rectal prolapse in a commercial swine herd in California, USA. Thirty (1.0 per cent) of 2862 pigs prolapsed between 12 and 28 weeks of age with the peak incidence occurring in 14- to 16-week-old pigs. The overall prolapse rate was 9.1 cases per 100,000 days at risk. Prolapse rates were highest during the winter and autumn months. Other factors associated with an increased risk of prolapse were maleness (relative risk 2.3) birthweight less than 1000 g (relative risk 3.4) Yorkshire boar A (relative risk 2.8) and dams of litter number 1 (relative risk 14.9), 2 (relative risk 8.2) and 3 (relative risk 9.8). No evidence was found to support the hypothesis that diarrhoea and coughing are factors associated with a risk of prolapse.
Vet Rec 1988 Aug 27
PMID:Patterns and determinants of rectal prolapse in a herd of pigs. 317 83

The effect of the mucolytic drug Sputolosin on the clinical signs of respiratory disease among 28 matched pairs of horses was examined. Compared with the untreated group, the treated group showed a significant decrease in the frequency of coughing and a decreased time to resolution of both cough and nasal discharge. The results indicate that the drug is potentially useful in the management of respiratory disease characterised by an abnormal or increased production of mucus.
Vet Rec 1988 Jan 30
PMID:The mucolytic effect of Sputolosin in horses with respiratory disease. 336 32

A two-year longitudinal, microbiological and pathological survey of respiratory disease in lambs housed for fattening at three-and-a-half to four months of age was undertaken. In the first year samples of nasal mucus and blood were taken from lambs each week for the first nine weeks after entry to a fattening unit and each week one lamb was examined post mortem. In the second year two additional fattening units were included in the survey, when samples of blood and nasal mucus were taken from lambs twice weekly for three weeks after entry and two lambs from each unit were examined post mortem eight to 11 days after entry to the unit. In both years the lambs had a nasal discharge and were coughing. Mycoplasma ovipneumoniae and Pasteurella haemolytica were the organisms most consistently isolated from the lungs, trachea and nasal mucus. Mycoplasma arginini and parainfluenza-3 virus were also isolated. Post mortem examination lesions of atypical, pasteurella-type and parasitic pneumonias were seen. In the second year an abattoir survey of pneumonia lesions was undertaken. Areas of pulmonary consolidation were seen in 27.5 per cent, bands of consolidation in 47.5 per cent and muellerius-type lesions in 28 per cent of the lungs examined. No significant correlation was found between the slaughter weights of the lambs and the extent of the lung lesions at slaughter.
Vet Rec 1988 Feb 27
PMID:Infectious agents in respiratory disease of housed, fattening lambs in Northern Ireland. 338 63

An acute pneumonia was induced experimentally in 10, 10- to 12-week-old conventional calves by administration into the upper airways of a pathogenic strain of parainfluenza type 3 (PI3) virus. The experimental calves had been selected on the basis of freedom from clinical evidence of respiratory and other diseases, freedom from current infection by PI3 virus as judged by repeated nasopharyngeal swabbing and freedom from earlier PI3 virus infection as judged by their lack of significant levels of serum antibody to that virus. The infection procedure was deemed to have been successful in that infection was established with subsequent seroconversion, clinical signs of a febrile pneumonia arose soon after the administration of virus, histopathological changes characteristic of PI3 pneumonia developed and the presence of PI3 virus antigen was demonstrated by immunofluorescence in association with those lesions. Treatment of five of the pneumonic calves was carried out on days 1, 2 and 3 of the trial using the anti-prostaglandin compound flunixin meglumine and that treatment appeared to be of benefit in that in the test calves there was a prompt cessation of coughing with fewer fevers and lower respiratory rates as compared with the untreated controls. The drug did not appear to influence PI3 infection rates but its administration was associated with a marked reduction in the extent of pulmonary consolidation, probably as the result of its known ability to limit the acute inflammatory response.
Vet Rec 1984 Aug 04
PMID:Effect of anti-prostaglandin therapy in experimental parainfluenza type 3 pneumonia in weaned, conventional calves. 608 3

Complications associated with Saffan anaesthesia were recorded following 100 administrations of the anaesthetic to cats. Hyperaemia or oedema of the pinnae or forepaws was recorded in 69 per cent of administrations. Other common complications included coughing and partial laryngean spasm at intubation, cyanosis, postoperative vomiting and opisthotonus. Suggestions are made for minimising the incidence of such complications.
Vet Rec 1980 Nov 22
PMID:Complications of saffan anaesthesia in cats. 616 Jun 74

Four litters of puppies were divided into three groups. One group was vaccinated with a live CAV-1 vaccine and another with a live CAV-2 vaccine. Throat swabs were collected from two dogs in each of these groups to monitor the possible excretion of vaccine virus, but none was found. Both groups, together with the third group of unvaccinated controls, were challenged 17 days later with an aerosol of virulent CAV-2. One dog from each group was killed on the third, fourth, seventh, ninth, 11th and 14th days after challenge. The unvaccinated dogs developed a clinical disease characterised by anorexia, dullness, coughing and tachypnoea. The lungs were consolidated and histological examination revealed the main lesion to be a severe necrotising bronchiolitis. Large amounts of virus were present in the respiratory tissues of these dogs and high titres of virus were isolated from throat swabs. In contrast, both groups of vaccinated dogs remained clinically almost normal with minimal lesions, present for a much shorter period of time. Virus was found on day 4 in the respiratory tissues of one dog vaccinated with CAV-1 but the other vaccinated animals contained little or no virus. In general, the degree of protection afforded by CAV-1 vaccine seemed similar to that provided by CAV-2 vaccine.
Vet Rec 1982 Jan 09
PMID:Immunity to canine adenovirus respiratory disease: a comparison of attenuated CAV-1 and CAV-2 vaccines. 628 Mar 70

Nine puppies without maternal antibody to canine adenovirus (CAV) were divided into two groups. The first consisted of six puppies, each of which was given two doses of a commercial inactivated CAV-1 vaccine, 14 days apart. Eight days after administration of the second dose of vaccine, all six puppies, together with the second group, consisting of three unvaccinated controls, were challenged with an aerosol of virulent CAV-2. One dog from each group was killed on the third, fifth and 10th days after challenge and the three additional vaccinates killed at intervening times. All of the dogs developed respiratory signs, mainly coughing and tachypnoea, but the vaccinated dogs made a more rapid recovery. The lungs of both groups were consolidated, the areas affected being more extensive in the controls, and histological examination revealed the main lesion to be a severe necrotising bronchiolitis. Virus was isolated from the respiratory tissues and from throat swabs collected from both groups of dogs. The presence of neutralising antibody in the serum was not, of itself, sufficient to control viral replication and oblate the disease.
Vet Rec 1983 Nov 26
PMID:Immunity to canine adenovirus respiratory disease: effect of vaccination with an inactivated vaccine. 631 19

A 16-day infection of Dictyocaulus viviparus in two groups of calves was treated with levamisole and fenbendazole respectively. Five days afterwards the calves were reinfected with 4000 larvae and necropsied 21 days later. Although the lungworm burdens of the two groups of calves were reduced by about 70 per cent compared to a control group the clinical signs of dyspnoea, tachypnoea and coughing were indistinguishable from a primary infection. This was due to pulmonary emphysema, oedema and an acute epithelialising pneumonia apparently associated with the death and disintegration of lungworms in situ, the result of an incompletely developed immune response. The results are compared with those obtained with the lungworm vaccine. It was concluded that the outcome of any system of "control" which depends on drug therapy and reinfection is unpredictable and that vaccination offers the only effective method of prophylaxis.
Vet Rec 1981 Feb 28
PMID:Control of parasitic bronchitis in calves: vaccination or treatment? 645 78

Since 1959, the Pig Health Control Association (PHCA) has run a national health-control scheme for pig herds believed to be free from enzootic pneumonia. During this time, many herds developed this disease without a simple explanation. From 1968, 55 such unexplained breakdowns have been studied in detail. The first signs in 50 breakdowns were either coughing in growing pigs (52 per cent of outbreaks), illness in adult stock (34 per cent of outbreaks) or pneumonia in routinely slaughtered pigs (14 per cent of outbreaks). In some outbreaks, enzootic pneumonia appeared to grow out of a pre-existing respiratory infection, which was not identified as enzootic pneumonia, in suckling pigs, suggesting that either Mycoplasma hyopneumoniae was already present in a latent state, or it more readily seeded damaged respiratory tracts from outside. In three outbreaks of this type, where pathological material was collected during the transition period, no laboratory evidence was obtained for the presence of M hyopneumoniae in the primary respiratory disease. Analysis of breakdowns in two national testing stations indicated that clinical/pathological signs might not develop until three to five months after the introduction of an infected group of weaners. It is possible, therefore, that a pig herd might not show obvious signs of the disease until up to six months or more after initial infection. There was little evidence to indicate that unexplained breakdowns arose from long term latent infection in other herds from which stock had been imported. There was considerable evidence, however, to suggest that breakdowns arose from extraneous sources.(ABSTRACT TRUNCATED AT 250 WORDS)
Vet Rec 1984 Sep 29
PMID:Apparent reinfection of enzootic-pneumonia-free pig herds: early signs and incubation period. 649 92


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