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The effect of field feline viral rhinotracheitis (FVR) virus challenge on cats previously vaccinated with a combined FVR/feline calicivirus intramuscular vaccine was studied in relation to the development of an FVR carrier state. There was no virus shedding of either of the two vaccine viruses following vaccination. Treatment with corticosteroid 60 days after vaccination and before challenge with FVR virus did not induce virus re-excretion in vaccinates or controls; neither did similar treatment induce shedding 63 days after challenge of both vaccinates and controls with virulent field virus. After a further 55 days however, FVR virus shedding was elicited in one of four previously vaccinated and challenged cats compared with two of four unvaccinated and challenged controls. Two sentinel cats remained virologically and serologically free of FVR throughout. The vaccine was shown to be effective in controlling the disease; 12 weeks after initial vaccination no clinical signs were seen in three of four cats following intranasal challenge with 10(5)CCID50 of virulent field FVR virus, and a mild transient unilateral ocular and nasal discharge was seen in the remaining cat for one day only. Severe clinical signs of approximately 10 days' duration were seen in all four unvaccinated challenged controls. The virological and serological responses of the cats were also recorded.
Vet Rec 1978 Sep 02
PMID:Interaction of a combined feline viral rhinotracheitis-feline calicivirus vaccine and the FVR carrier state. 21 59

In February 1991 a severe haemorrhagic disease affected exotic deer aged over six months in the Al-Hofuf area of the eastern region of Saudi Arabia. The morbidity rate was 40 per cent and the case fatality rate was 60 per cent. The clinical signs were high temperature (up to 41.5 degrees C), nasal discharge, slight salivation and lacrimation, congestion of the conjunctivae, torticollis, tremors when trying to stand, recumbency and coma leading to death. Post mortem examination revealed a severe haemorrhagic disease. A virus, serologically related to the bluetongue serogroup, was isolated from the deer. Sheep and goats kept on the same farm did not show any clinical signs. The epidemiology of the outbreak is discussed.
Vet Rec 1992 Nov 07
PMID:Isolation of a virus serologically related to the bluetongue group from an outbreak of haemorrhagic disease among exotic deer in Saudi Arabia. 133 68

The duration of immunity as measured by virological, serological and clinical responses following infection with influenza A/equine/Newmarket/79 (H3N8) was assessed in repeated challenge experiments in which ponies were infected by exposure to aerosols of infectious virus. Previous infection stimulated complete clinical protection which persisted for at least 32 weeks as demonstrated by the absence of febrile responses and coughing in two groups of ponies infected 16 weeks or 32 weeks after the first infection. Partial clinical protection persisted for over a year as demonstrated by the absence of coughing and a reduction in the number of febrile responses in a group of ponies infected 62 weeks after their first infection. These results contrasted with those observed in immunologically naive control ponies which developed pyrexia, dyspnoea and nasal discharge and coughing. The kinetics of virus specific antibody production in primary and secondary infections with equine influenza were studied by the single radial haemolysis test and a radioisotopic antiglobulin binding assay which measured virus specific IgGab antibody isotype. Antibody to the haemagglutinin, as measured by the single radial haemolysis test, declined rapidly after primary infection whereas the IgGab responses to whole virus antigens persisted for longer. The single radial haemolysis test was therefore particularly useful for the detection of antibody responses in multiple infections or exposures to influenza antigens. The radioisotopic antiglobulin binding assay was more sensitive for identifying infections which had occurred more than six months previously, as evidenced by anamnestic IgGab responses in ponies with low levels of antibody before rechallenge.
Vet Rec 1988 Feb 06
PMID:Duration of circulating antibody and immunity following infection with equine influenza virus. 283 50

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

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

The spontaneous occurrence of atrophic rhinitis in 12 of 49 goat herds in one area of Norway is described. The clinical signs included nose bleeding, nasal discharge, sneezing and tender noses. Pathologically, the macroscopic and histological findings resembled those found in pigs with atrophic rhinitis. Bacteriological investigation of nasal swabs in five of the herds revealed toxigenic strains of Pasteurella multocida in three of them. In four of the herds the clinical signs were seen in two or more consecutive years. No specific source of the infection was discovered. Atrophic rhinitis was induced experimentally in kids by the nasal inoculation of toxigenic strains of P multocida and atrophic rhinitis toxin.
Vet Rec 1987 Oct 10
PMID:Atrophic rhinitis in goats in Norway. 368 94

Two commercial live virus infectious bovine rhinotracheitis (IBR) vaccines for intranasal administration and an inactivated polyvalent calf pneumonia vaccine were compared for safety and efficacy in calves against experimental IBR infections. All three products were clinically safe for use in young calves; a mild, transient, febrile response was induced by one of the live vaccines. Vaccinal virus was recovered for up to 16 days after vaccination from nasal secretions of all calves given live vaccine. Both live vaccines stimulated a serum neutralising antibody response, but the inactivated vaccine failed to elicit any serological response. Following intranasal challenge four months after the first dose of vaccine, all live virus vaccinates remained systemically healthy. A slight nasal discharge and a few rapidly healing ulcers of the nasal mucosa were the only abnormalities observed. Both the group given the inactivated vaccine and the unvaccinated controls developed clinical IBR with pyrexia, ocular and nasal discharges, severe ulceration of the nasal mucosa and tracheitis and tachypnoea to varying degrees of severity. Parenteral administration of dexamethasone six months after challenge induced reactivation of virus shedding followed by a rise in humoral antibody titre irrespective of the original vaccination history.
Vet Rec 1982 Aug 07
PMID:Safety and efficacy of live and inactivated infectious bovine rhinotracheitis vaccines. 628 8

Clinical signs and haematological findings during the acute and convalescent phases of an infection with bovine respiratory syncytial virus (RSV) were studied under field conditions. The study was carried out in 139 cattle less than 16 months of age in 16 herds with serologically proven bovine RSV infections. Blood was collected for serological and haematological examination. Repeated clinical examinations were carried out until 35 days after appearance of disease. Signs of general disease such as reduced appetite and a body temperature of 40 degrees C or higher lasted less than three days in most cases. Signs of upper respiratory disease, such as coughing, nasal discharge and conjunctivitis were predominant and persisted in 10 to 30 per cent of the animals till the end of the observation period. Signs of lower respiratory disease such as abdominal breathing, bronchial and bronchovesicular sounds on auscultation and a high respiration rate were valuable in diagnosing the disease. These symptoms were present in about 50 per cent of the animals in the early stages of the disease. They lasted for about six days and disappeared in most animals after about 10 days. On haematological examination statistically significant blood changes were observed. A rise in zinc and iron between day 0 and day 10 and a reduction in copper content between day 10 and day 21 were found.
Vet Rec 1984 Jan 07
PMID:Bovine respiratory syncytial virus infections in young dairy cattle: clinical and haematological findings. 670 77

Three horses were referred for investigation of a unilateral foul smelling scanty nasal discharge, complicated in one case by intermittent epistaxis. Thick purulent material or a mycotic plaque was identified by an endoscopic examination of the middle meatus but in two horses this had to be repeated under general anaesthesia before the abnormalities were detected. Aspergillus fumigatus was cultured from all three cases and septate hyphae were identified on smears from lesions. Histological examination of the lesion in one case revealed a fungal mycelium. Topical treatment with natamycin solution in all cases plus nystatin in two of the horses resulted in complete recovery from the condition in two cases but in one case the problem recurred. The aetiology of nasal aspergillosis remains uncertain.
Vet Rec 1981 Nov 28
PMID:Nasal aspergillosis in three horses. 703 61


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