Publications

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localised occurrence of n-nitrosopyrrolidine in fried bacon. 19764652
isolation of legionnaires' disease organism in cambridge. 197882697
the behaviour of porcine cytomegalovirus in commercial pig herds.a longitudinal, virological and serological study of pigs in two herds with respiratory disease showed that infection by porcine cytomegalovirus (pcmv) was universal in both. virus excretion usually began when piglets were between 3 and 6 weeks of age and reached a maximum between 5 and 8 weeks; it was usually no longer detectable at 11-12 weeks. antibody demonstrable in indirect immunofluorescence (iif) tests was present to moderate or high titre in all piglets at 2-3 weeks. this was presumed t ...1976173754
infection of man by swine vesicular disease virus. 1976181406
infection of british deer and farm animals with epizootic haemorrhagic disease of deer virus. 1977198436
incidence of salmonella infection in animals in england and wales 1968--1974.of a total of 23,609 incidents of salmonella infection reported during the period 1968--74, 20,326 occurred in cattle, 1744 in poultry and other birds, 675 in sheep, 558 in pigs and 306 in other species of animals. despite the large number of serotypes isolated (153), 88% of incidents were due to only two stereotypes: s. dublin (15,929 incidents of which 15,446 occurred in cattle ) and s. typhimurium (4842 incidents of which 3785 occurred in cattle and 732 in birds). s. choleraesuis was the thir ...1977319168
[a tissue bank: aspects concerning its promotion and organization (author's transl)].in spite of continued improvement in the production of artificial tissues, there are still many instances where replacement of the damaged part by a natural tissue grafts would be preferable. it is to satisfy this requirement that tissue banding has been developed. in this paper a brief description of the preparation of tissue grafts currently being carried out in the yorkshire regional tissue bank is given and the philosophy of tissue banking from a financial and scientifical point of view is e ...1978383111
the obstetrical use in ancient and early modern times of convolvulus scammonia or scammony: another non-fungal source of ergot alkaloids?this brief historical survey documenting the use of ergot alkaloids throughout ancient times for obstetrical purposes (labor induction and control of uterine hemmorrhage) takes its data from works of theophrastus (who wrote enquiry into plants around 300 b.c.), pliny, dioscorides, and others. what this history documents is another source for the ergot besides the fungus clavicips purpurea; notations from greek, mexican, and english catalogers show that the family convolvulaceae is a constant so ...1979396416
otosclerosis-past and present. 1979399645
the prevalence of sarcocystis spp in dogs and red foxes.protozoan parasites of the genus sarcocystis have been recognised for many years as intramuscular cysts of numerous vertebrates. it is only comparatively recently that the two-host nature of the life cycle has been recognised and that the intramuscular cysts are a stage in the developmental cycle of coccidian parasites of flesh eating mammals (fayer 1974, fayer and johnson 1973, 1974, rommel and others 1972, dubey 1976). carnivores ingest the intramuscular cysts from herbivores and presumably fr ...1978416553
legionnaires' disease in nottingham, england.legionnaires' disease bacterium was identified as the cause of severe pneumonia in some nottingham, england, patients in 1977. laboratory studies were not restricted to nottingham but included several other areas in england. the 41 cases identified were evenly divided between areas; they also accounted for about one half of all cases for the entire country. no source of infection has been identified in these sporadic cases. there was no contact between patients, and only a few had travelled abro ...1979434639
group r streptococcal infection amongst pig meat handlers. a review. 1979451122
heberden oration 1978. recent studies on the control of joint damage: the contribution of the strangeways research laboratory. 1979485574
the treatment of acute accidental hypothermia: proceedings of a symposium held at the raf institute of aviation medicine.a symposium was held at the raf institute of aviation medicine, farnborough, hampshire, on feb. 28, 1978. the purpose of the meeting was to distill up-to-date expert opinion to provide advice for those faced with the treatment of victims of exposure or cold water immersion. in particular, it was intended to recommend practical measures which could be employed in the field. however, it soon became apparent that there are large gaps in our knowledge of the physiology of hypothermia. these made the ...1979496754
aujeszky's disease--why no eradication policy. 1979516318
the influence of environmental temperature on the rate of development of ascaris suum eggs in great britain.the rate of development of ascaris suum eggs was recorded during 18 months in england. every second or third week unembryonated eggs were placed in an unheated animal house and their development was observed at weekly intervals. eggs underwent no development during november to may. embryonation was most rapid during june, july and august. the shortest time for eggs to reach the infective stage was two weeks in 1976 and four weeks in 1977. a relationship was apparent between the rate of developme ...1979523803
the development and survival of trichuris suis ova on pasture plots in the south of england.pasture plots in the south of england were contaminated each month throughout 1975 with pig faeces containing trichuris suis ova. at regular intervals thereafter, soil samples were taken, the t suis ova extracted and their state of development noted. depending on the time of year that the plots were contaminated, ova required between 62 and 90 weeks to complete their development to the infective stage. little or no development occurred during winter. once the infective stage was reached, the ova ...1979572984
oesophagostomum species in pigs in england. 2. oesophagostomum quadrispinulatum: resistance to reinfection. 1977591654
a critical analysis of condemnation data for cattle, pigs and sheep 1969 to 1975. 1978698775
tuberculosis of the peritoneal cavity.the clinical presentation and management of 30 consecutive patients with tuberculous peritonitis are reviewed. seventy per cent of the patients were aged 40 years or less and 80 per cent were immigrants. the main clinical features of abdominal pain, loss of weight, vomiting and sweating at night had been present in a large number of patients for several months before presentation to hospital. the clinical diagnosis of tuberculous peritonitis was difficult in the absence of extraperitoneal tuberc ...1978719333
scurvy. 1976779036
swine influenza: history and recommendations for vaccination. 1976792372
streptococcal infection in young pigs. iv. an outbreak of streptococcal meningitis in weaned pigs.twenty-eight pigs died in an outbreak of streptococcal meningitis in an east anglian herd. most were 10-14 weeks old. the outbreak lasted from january to april and was finally controlled by antibiotic therapy. a similar number of losses had occurred in the previous year though no diagnosis had then been made. the causal agent appeared to be a haemolytic streptococcus belonging to group d and provisionally designated streptococcus suis type 2. it is probably identical with de moor's group r strep ...1975807620
transmissible gastroenteritis in pigs: an epidemiological study of outbreaks in east anglia. 1977841824
oesophagostomum species in pigs in england. 1. oesophagostomum quadrispinulatum: description and life-history. 1977858808
the prevalence of hyostrongylus rubidus. 1977888299
aujeszky's disease in a pack of hounds.aujeszky's disease occurred in a pack of harrier hounds in the south west of england and caused the death of 11 of a pack of 51 animals. the onset appeared to have followed the feeding of pig carcase material from a very large fattening unit. no evidence of clinical disease was seen in pigs in this unit, but serological evidence of earlier infection was obtained. interesting lesions in the intestinal wall of the hounds are described.1977906226
domestic animal transport regulations. 1977928643
studies on the epidemiology of uncinaria stenocephala infections in british greyhounds: seasonal availability of larvae on grass runs.the numbers of uncinaria stenocephala larvae on the grass in a small paddock used continually for exercising greyhounds followed the seasonal pattern associated with gastro-intestinal nematodes of ruminants, pigs and horses in britain. contamination persisted throughout the winter months but near-zero values were recorded in the early summer, followed by a rapid rise in mid-july to a peak level in september.1976968193
determination of calcium, potassium, chlorine, sulphure, and phosphorus in meat and meat products by x-ray fluorescence spectroscopy. 1976968984
trends in salmonella food poisoning in england and wales 1941-72.cattle and pig herds and flocks of domestic fowl have formed the main reservoir of human salmonella food poisoning in england and wales from 1941 to 1972. changes in the incidence of human salmonella food poisoning and in the serotypes of salmonellas isolated from human infections are shown to have been associated with the introduction of new foods, with changes in animal husbandry, and with changes in the relative proportions of flesh food from different species consumed. new foods, dried powde ...19751054731
studies on the 1967--68 foot and mouth disease epidemic: incubation period and herd serial interval.the incubation period during this epidemic was studied using both a spectral analysis-cum-filtering method and analysis of case histories. using spectral analysis, the modal herd serial interval was estimated to be 8--10 days based on the record of the daily number of outbreaks and an adjusted cattler series. the case histories tended to confirm these estimates but indicated that the serial interval varied considerably between species. the filtering method revealed that the herd serial interval ...19761068194
epidemiological studies on the 1967-1968 foot-and-mouth disease epidemic: the reporting of suspected disease.from an analysis of the telephone reports in ten fmd control centres in the west midlands, the veterinary officers' reports on each outbreak, the farm patrol reports and the daily number of outbreaks announced on the 17.50 h b.b.c. t.v. news, it would appear that the reporting of suspected outbreaks was indirectly related to the local disease activity. private veterinary practitioners reported older cases of fmd at the beginning and end of the epidemic than in the middle.19761069810
short-term toxicity of yellow 2g in pigs. 19751123198
anthrax in england and wales 1963-1972.the records of confirmed anthrax diagnoses held by the bacteriology department of the central veterinary laboratory, weybridge, for the years 1963 to 1972 inclusive, were analysed. during this decade, 86 per cent of the 2944 deaths recorded were in cattle and 11 per cent in pigs, correlating significantly with the cattle and pig populations in england and wales during this period. also, the country could be separated into high and low prevalence counties for cattle anthrax. norfolk and somerset ...19751179615
letter: an anthrax outbreak. 19751198877
observations on an outbreak of klebsiella mastitis in sows. 19751241837
a survey of drug resistance in salmonella isolated from animals in england and wales during 1972. 19761260419
swine influenza. 19921285165
salmonella kedougou and cooked meats. 19921285242
outbreak of influenza in pigs. 19921314444
betel-nut chewing and asthma.two asian patients admitted to hospital with acute severe asthma had been chewing betel nut immediately before the attacks. arecoline, a cholinergic alkaloid, is a major constituent of areca catechu (betel) nut and causes the euphoric effects. we sought an association between betel-nut chewing and bronchoconstriction in asthmatic patients. in vitro, arecoline caused dose-related contraction of human bronchial smooth-muscle strips, with one-tenth the potency of methacholine. in a double-blind cha ...19921349367
serology and anthrax in humans, livestock and etosha national park wildlife.results are presented from a number of epidemiological studies using enzyme immunoassays (eia) based on the purified anthrax toxin antigens, protective antigen, lethal factor and oedema factor. studies on sera from a group of 62 human anthrax patients in turkey and from cattle in britain following two unrelated outbreaks of anthrax show that eia using protective antigen can be a useful diagnostic aid and will detect subclinical infections in appropriate circumstances. a serological survey on wil ...19921582472
dual infection from cooked meats? 19911669791
controls on blue-eared disease relaxed. 19911746112
'blue ear' disease of pigs. 19911897099
problems with vietnamese pot-bellied pigs. 19911926734
halothane and hepatitis. incidence, predisposing factors and exposure guidelines.despite early controversy, it is now recognised that halothane anaesthesia may be followed by abnormalities of liver function. the resulting hepatitis may take 1 of 2 forms: in type i, there is a minor degree of disturbance of liver function shown by increased serum transaminases or glutathione-s-transferase in up to 25 to 30% of patients; subsequent re-exposure to halothane is not necessarily associated with evidence of liver damage. in contrast, type ii hepatitis is often associated with massi ...19902178633
plasmid profile typing can be used to subdivide phage-type 49 of salmonella typhimurium in outbreak investigations.plasmid profile typing has been used to subdivide phage-type 49 of salmonella typhimurium, the most common phage type in humans in england and wales since 1985. twenty profile patterns have been identified in 350 strains examined. four profile patterns have been identified in 143 isolates from patients infected in 33 epidemiologically unrelated incidents and two patterns have predominated, st49:62 and st49:62, 1. these patterns were also common amongst s. typhimurium phage-type 49 isolated from ...19902182328
detection and distribution of toxigenic pasteurella multocida in pig herds with different degrees of atrophic rhinitis.four herds of pigs were selected which had different degrees of clinical atrophic rhinitis and used different specific counter-measures. in two of them, the clinical signs occurred spasmodically and were slight. the sows, suckling pigs and growing pigs in all the herds were sampled for toxigenic pasteurella multocida. in one of the slightly affected herds (herd d), the weaners were moved to a second farm for finishing. no toxigenic p multocida were found at the breeding farm, but 50 per cent of ...19902356600
the epidemiology of echinococcus granulosus in great britain. v. the status of subspecies of echinococcus granulosus in great britain.twenty-five years ago williams and sweatman suggested that in great britain there are two subspecies of echinococcus granulosus--e. granulosus granulosus and e. granulosus equinus. echinococcus granulosus granulosus does not mature either in foxes or in horses: e. granulosus equinus will mature in either. the prepatent period of e. granulosus granulosus in the definitive host is about 42 days while that of e. granulosus equinus is about 70 days. each subspecies has a characteristic morphology. m ...19892596902
the virulence characteristics of strains of escherichia coli isolated from cases of bovine mastitis in england and wales.of 470 gram-negative facultative anaerobes isolated from cases of bovine mastitis in england and wales, 422 were identified as escherichia coli. the characteristics of 237 of these were investigated. guinea-pig red cell haemagglutinins were possessed by 86% of strains and 12% were resistant to d-mannose. none of the strains tested invaded vero cells. haemolysin, vero toxin and enterotoxin were produced by 5, 0.5 and 1% of strains, respectively. twenty-two percent were resistant to one or more an ...19892669321
vocational training. my year as a guinea pig.in the twilight of the first year of the new vocational training scheme i am reflecting on my metamorphosis from a naive dental student to vocational trainee and ultimately (hopefully) to competent clinician.19892706169
anthrax outbreak. 19892800274
outbreaks of classical swine influenza in pigs in england in 1986.serum samples from pig herds in great britain have been examined for antibodies to influenza virus since 1968. antibodies to h3n2 virus strains have been found since 1968 and the serological data presented here suggests that h3n2 virus strains continue to persist in the pig population. an outbreak of acute respiratory disease occurred in a 400-sow unit. the outbreak was characterised by coughing, anorexia, fever, inappetence and loss of condition. the gilts and weaners were affected and the morb ...19872820111
porcine influenza outbreak in east anglia due to influenza a virus (h3n2) 19872832998
characterization of an influenza a (h3n2) virus isolated from pigs in england in 1987. 19882838122
occurrence and properties of fy(att25)+ escherichia coli associated with diarrhoea in calves.escherichia coli producing the adhesive antigen fy(att25) were isolated from 46 of 1341 (3.4 per cent) e coli isolated from calves on 20 of 164 (12.1 per cent) farms in scotland and england. twenty of the 46 calves had diarrhoea and in nine of these animals there were mixed infections with rotavirus, coronavirus, cryptosporidium and salmonella typhimurium. the f41 fimbrial adhesin was found on one of the fy(att25)+ e coli. this strain also produced heat stable enterotoxin. the remaining fy(att25 ...19872889286
lung cancer in the meat industry.routine statistics of occupational mortality and incidence of cancer have consistently shown high rates of lung cancer in butchers. possible explanations include infection by carcinogenic papilloma viruses, exposure to polycyclic aromatic hydrocarbons and nitrites in the preservation of meat, or a confounding effect of tobacco. to explore these possibilities, we have examined the mortality of 1610 men employed at three british companies processing pork, beef, lamb, bacon, and other meat products ...19892930728
clinical observations on seasonal infertility in sows in cornwall.a summer infertility syndrome affected three commercial pig herds in cornwall and was associated with reduced conception rates. the affected sows were housed in kennel and yard accommodation for all or part of gestation. the provision of more shelter accommodation for the dry sows in all three herds resulted in improved fertility. it is concluded that weather conditions between may and september may have adversely affected the fertility of these semi-extensive pig herds.19883201668
prevalence of pleurisy in pigs at slaughter.the mean (+/- sd) batch prevalence of pleura stripping of finished pigs going for slaughter in four abattoirs in eastern england was 0.15 +/- 0.04, and the average batch proportion of lungs totally condemned was 0.23 +/- 0.05. there was a significant positive correlation between the number of carcases requiring total lung condemnation and the number of carcases requiring pleura stripping. there was no significant differences between the type of producer, the herd size or the mean batch live weig ...19883218056
[visit to an internationally operated english pig breeding group]. 19883381219
living history--a biography of arthur b. chapman. 19863521282
tuberculosis in east sussex. iv. a systematic examination of wild mammals other than badgers for tuberculosis.a detailed investigation of the possible role of wild mammals, other than badgers, in the maintenance of mycobacterium bovis in an area on the south downs of east sussex was carried out over 3 years. estimates of population sizes were made where possible and minimum sample sizes were selected to be 95% certain of including at least one infected animal if the prevalence was at least 5%. samples of wild mammals were taken from populations which had the highest potential direct or indirect contact ...19863525673
the radiologist as guinea pig: radiation hazards to man as demonstrated in early radiologists, and their patients. 19863534263
occurrence and transfection of a giardia virus.the presence of virus-derived rna was investigated in 38 axenically growing giardia isolates from different geographic areas. the rna virus was demonstrated in giardia strains from humans in the u.s.a., england and the majority of strains from poland. two strains isolated respectively from a cat and a cavia also contained it. giardia strains from humans in belgium and israel did not contain this rna virus. transfection of the rna virus was accomplished from english and polish strains, as well as ...19873574350
transmissible gastroenteritis in endemically infected breeding herds of pigs in east anglia, 1981-85.endemic infection was a common sequel to primary outbreaks of transmissible gastroenteritis in large breeding herds of pigs in east anglia. the main clinical features of the disease were diarrhoea affecting sucking piglets aged about six days or more, diarrhoea among recently weaned pigs and brief episodes of overt clinical recrudescence in part of the herd. post mortem and bacteriological findings were often more suggestive of colibacillosis than transmissible gastroenteritis. in some herds, en ...19873576922
comparative virulence of some english strains of haemophilus pleuropneumoniae serotypes 2 and 3 in the pig.between 10(7.5) and 10(8.1) viable organisms of four english and one danish strain of haemophilus pleuropneumoniae serotype 2 and five english strains of serotype 3 were inoculated intranasally into groups of conventional pigs. among the english isolates of both serotypes there were virulent and non-virulent strains. four of the serotype 2 strains, including the danish strain, and two of the serotype 3 strains produced varying degrees of pulmonary consolidation with abscess formation and pleuris ...19873589166
field observations on the longevity of trichuris suis ova. 19873629887
group l beta-haemolytic streptococcal infection in meat handlers: another streptococcal zoonosis?group l, beta-haemolytic streptococci can cause infection in dogs, pigs, cattle and sheep but there have been very few reports in man. in studies of skin infection in meat handlers we cultured group l streptococci from clinically infected wounds, impetigo and paronychia of 15 patients involved in the slaughter and processing of chickens and pigs. staphylococcus aureus was also present in eight (53%) of the lesions. at least five other infections with group l streptococci in meat and animal handl ...19873678390
less pasteurellosis in sheep. 19863716159
isolation and characterisation of intestinal spirochaetes.faeces or rectal swabs from 1527 subjects were examined for the presence of intestinal spirochaetes by anaerobic culture on blood agar incorporating spectinomycin (400 mg/l). twenty three specimens (1.5%) were positive, and only one of these came from a patient with diarrhoea. all positive specimens came from either asians or known homosexuals. comparative tests showed a close phenotypic similarity between the human isolates and non-pathogenic porcine intestinal spirochaetes. these organisms dif ...19863722407
streptococcal meningitis in pigs. 19853875923
radio-iodine in thyroid glands of swans, farm animals and humans, also in algae and river water from the thames valley, england.a highly sensitive counting system has been used to measure radio-iodine in environmental samples from the thames valley. iodine-125 and occasionally iodine-131 have been found in the thyroid glands of most of the swans that have died on the river thames, the river wey and the grand union canal, and in algae and water samples from the thames and many of its tributaries. the presence of this activity is ascribed to the waste discarded into the drainage system by hospitals and research laboratorie ...19863945795
the thickness of the alveolar capillary wall in the human lung at high and low altitude.an ultrastructural study of lung biopsy specimens from an adult mestizo highlander from la paz (3800 m) and three lowlanders from london showed no significant difference in the thickness of the alveolar capillary wall, the thickness in the highlander being 0.65 micron and the range in the lowlanders being 0.57-0.69 micron. the thickness of the blood-air barrier in a mestizo girl of 4 years born and living in la paz was 0.47 micron. these findings suggest that the alveolar capillary wall in the a ...19863947519
[heparin or heparins?]. 19853982682
taenia hydatigena: a cause of persistent liver condemnations in lambs.a problem of high levels of liver condemnations which had affected bought-in lambs fattened on a north yorkshire farm for several years was investigated. because the farmer spread pig slurry on the land, migrating ascaris suum larvae were initially suspected as a cause but the investigation eliminated this possibility. migrating taenia hydatigena larvae were found in tissue sections and isolated from livers. a combination of parasitological and serological evidence using oncospheral antigen in a ...19854002589
is salmonellosis still a serious problem in veterinary practice?salmonella infections of food animals are of concern to both the food industry and to the public health authorities. salmonellosis is one of the major zoonotic diseases and its impact on veterinary practice may be judged by a number of criteria. some of these are examined to determine the extent of the problem.19854013036
prevalence of pig herds affected by pleuropneumonia associated with haemophilus pleuropneumoniae in eastern england.a survey for the macroscopic lesions indicative of pneumonic infection in the pig with haemophilus pleuropneumoniae was made in an abattoir in eastern england. a total of 78 herds located in 11 counties of eastern or central england were seen between december 1982 and august 1983. lesions were noted in the batches submitted by 44 (56 per cent) of the 78 herds. a further 16 herds (21 per cent) submitted batches containing pigs affected by pleurisy principally of the caudal lobes but without the p ...19854049707
pigs, english and danish. 19724111588
salmonellosis in livestock. 19724113419
microsporum rivalieri isolated from tinea capitis in east anglia (england). 19704193475
animal sources of common serotypes of escherichia coli in the food of hospital patients. possible significance in urinary-tract infections. 19704193686
the incidence of brucella infections in producer-retailer herds in north lancashire from 1965 to 1972.the results are presented of testing untreated producer-retailer herd milk samples for the presence of brucella abortus during the period 1965-1972 in the north lancashire region.there was a steady decline in the incidence of infected herds from 22% in 1965 to 12% in 1971. a sharp fall to 5% in 1972 suggests that the introduction of the brucellosis incentives scheme and the eradication programme has helped to reduce the practice of selling brucella-infected cattle in the open market which was pr ...19744213998
swine vesicular disease: a serological vurvey of pigs presented for slaughter. 19744217498
stepping stones in allergy. chapter 3. immunology, infectious diseases and allergy. the early years. (experimentation and discoveries). 19744275244
porcine enteroviruses: a serologic comparison of thirty-eight pennsylvania isolates with other reported north american strains, teschen, talfan, and t80 serums--a progress report. 19674291852
the isolation of parainfluenza 4 subtypes a and b in england and serological studies of their prevalence. 19694309337
[classification of the foot-and-mouth disease virus strain responsible for the 1967 english epidemic]. 19704319822
cytomegaloviruses. 19674365419
an outbreak of ulcerative dermatitis in pigs. 19744439621
salmonellas on pig farms and in abattoirs.salmonella infection on two pig farms and its relation to infection in pigs at slaughter was studied. on the first farm feed ingredients were mixed on the farm, and these included fish meal which was found to be contaminated with salmonellas. the feed was pumped to pigs in liquid form. there was a high salmonella isolation rate at slaughter when the contaminated fish meal was fed in liquid feed, but it was significantly lower when no fish meal was fed to the pigs examined at slaughter. in some i ...19724501835
an epidemiological study of the incidence of salmonellas in pigs.the incidence of salmonellas in pigs was studied in five farms and a bacon factory.persistence and spread of salmonella excretion in pigs in a breeding establishment is described. salmonella excretor boars and sows were responsible for the spread and perpetuation of infection in the farm. the possibility of spreading salmonella infection between farms through the distribution of excretor pigs was studied. infection persisted and was related to the initial state of excretion of the pigs while at ...19724501836
the hampshire epidemic of foot-and-mouth disease, 1967.an analysis was made of the spread of foot-and-mouth disease during the epidemic in hampshire in january and february 1967. to explain the pattern of spread, it had to be postulated that virus was present seven days before the first outbreak was reported. it is suggested that the disease occurred initially in pigs fed on infected meat and that the virus was subsequently disseminated from the local abattoir, where the pigs were killed, to four farms by movement of animals, slaughterhouse waste, p ...19734511946
swine vesicular disease: virological studies of experimental infections produced by the england-72 virus.pigs exposed to relatively small amounts of virus by intradermal inoculation of the feet or by skin sacrification developed clinical disease. large amounts of virus were recovered from samples taken from the nose, mouth, pharynx, rectum and the prepuce or vagina during the first week of infection and smaller amounts during the second week. virus was recovered from the faeces of most animals 16 days after infection and from one animal for 23 days. pigs in contact with inoculated animals were kill ...19744522243
a study of swine vesicular disease in england. 19734534720
salmonella in pigs and animal feeding stuffs in england and wales and in denmark.a comparison has been made between the incidence of salmonellas in pigs and feeding stuffs in england and wales and in denmark. in denmark there is veterinary legislation requiring the sterilization of imported and home produced feed ingredients of animal origin. there is no such legislation in england and wales. in denmark 0.3% of resterilized imported meat and bone meal was contaminated with salmonellas. this compared with 23% of meat and bone meal in england and wales and 20-27% of other ingr ...19724552257
a review of transmissible gastro-enteritis in england and a study of outbreaks in 1970-71. 19724557344
the veterinarian and intensive livestock production: humane considerations. 19724562986
epidemiology of influenza in australia and papua new guinea. 19734577780
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