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A possible infection with encephalomyocarditis virus was investigated on two Minnesota pig farms which experienced an increase in stillborn and mummified fetuses, high pre-weaning mortality and reduced farrowing rates. The monthly averages for the numbers of piglets born dead per litter on farms A and B reached 4-6 and 3-6, the pre-weaning mortalities 50 per cent and 31 per cent, and the farrowing rates 52 per cent and 63 per cent, respectively. Serological and histopathological examinations supported a diagnosis of infection with encephalomyocarditis virus, but attempts to isolate the virus failed. Specific antibody to the virus was detected in both fetal and neonatal sera collected from abnormal litters. The predominant histopathological finding was myocarditis consisting of focal or diffuse mononuclear cell infiltration. The detection of specific antibody, and the myocardial lesions in stillborn fetuses, suggested that the problems were associated with infection by encephalomyocarditis virus.
Vet Rec 1990 Jan 20
PMID:Reproductive and neonatal losses associated with possible encephalomyocarditis virus infection in pigs. 215 74

A questionnaire sent to all veterinary practitioners in Australia and many in New Zealand asking for details of their experience with canine parvovirus infections in 1980 elicited the following information. In 1980 explosive outbreaks of disease occurred in most parts of Australia. There was no obvious pattern of spread over the continent as a whole. In many cases outbreaks in country areas occurred after dog shows. Canine parvovirus enteritis affected all age groups with an overall mortality of 16 per cent. While the death rate in the young was high, most dogs responded well to fluid therapy. Canine parvovirus did not appear to be associated with clinical entities other than gastroenteritis and myocarditis. No connection with reproductive problems was established. Killed canine parvovirus vaccines were used extensively after the initial release for sale in July 1980. The vaccines appeared to be safe and effective at least in the short term. Problems arose only in vaccination of very young animals.
Vet Rec 1982 Jun 12
PMID:Canine parvovirus infection in Australia during 1980. 711 69

Twenty-seven cases of neosporosis in European dogs are described. The disease was confirmed by immunohistochemistry, electron microscopy, or a favourable response to treatment in the dogs with appropriate clinical signs, and by the presence of antibodies to Neospora caninum but not to Toxoplasma gondii. The affected dogs were two days to seven years old, and of 13 different breeds. Both sexes were affected and in most cases littermates remained normal. Twenty-one cases had an initial hindlimb paresis or ataxia, in which muscle atrophy was the most consistent clinical sign. Rigid hyperextension developed in approximately half of the cases. Anorexia and pyrexia were rare. Other clinical signs included forelimb ataxia, head tremors with tetraparesis and sudden collapse due to myocarditis. Titres of > or = 1:800 in the N caninum indirect fluorescent antibody test were detected in the 20 cases from which serum samples were taken. Such high titres are rare in healthy dogs and strongly suggest a diagnosis of neosporosis. Sixteen of the dogs received appropriate antiprotozoal treatment with clindamycin, potentiated sulphonamides and/or pyrimethamine; 10 made a full or functional recovery. Recovery was less likely in peracute cases with severe clinical signs, and when the treatment was delayed.
Vet Rec 1996 Nov 02
PMID:Clinical aspects of 27 cases of neosporosis in dogs. 893 Dec 99

Between January and April 1995, the brains and hearts of 281 aborted lambs derived from 209 submissions to veterinary investigation centres in England and Wales were examined histologically. One-hundred-and-seventy-nine samples of fetal pleural fluid from these lambs and 141 from lambs not examined histologically were examined for antibodies to Neospora by an indirect fluorescent antibody test. Non-suppurative myocarditis and encephalitis were present in nine lambs. Immunocytochemistry using antisera against Neospora caninum and Sarcocystis species resulted in no labelling but anti-sera to Toxoplasma gondii revealed labelled organisms in four lambs. No significant antibody titres against Neospora were detected in any of the samples of fetal pleural fluid. These results suggest that Neospora infection is not associated with significant numbers of abortions in sheep in England and Wales.
Vet Rec 1997 Feb 15
PMID:Results of a survey to determine whether Neospora is a significant cause of ovine abortion in England and Wales. 905 94

Staphylococcus aureus septicaemia was diagnosed in a dead, stranded harbour porpoise from the German Baltic Sea and in a live harbour porpoise by-caught in inner Danish waters and taken into captivity. Lesions included pyogranulomatous myocarditis, necrotising suppurative bronchopneumonia, pyelonephritis, osteomyelitis and leptomeningitis, and abscesses in lymph nodes and skeletal muscles. The captive animal had fibrinous suppurative epicarditis and pyogranulomatous myocarditis with abscesses. In both animals the organism was suspected to have entered through skin lesions or via the respiratory tract.
Vet Rec 2002 Mar 02
PMID:Pyogranulomatous myocarditis due to Staphylococcus aureus septicaemia in two harbour porpoises (Phocoena phocoena). 1212 Sep 28

This paper describes the epidemiological and pathological features of an outbreak of clostridial myocarditis in calves due to Clostridium chauvoei. Four of seven two-month-old Hereford calves died in the course of a week. Their gross postmortem lesions were similar and consisted of irregular dark red areas of myocardial necrosis through the full thickness of the atrial and ventricular myocardium. No lesions were observed in skeletal muscle. The heart muscle had extensive multifocal areas of acute coagulative necrosis. The diagnosis was confirmed by a fluorescent antibody technique on tissue smears, by a streptavidin-biotin technique on formalin-fixed, paraffin-embedded tissues, and by a PCR technique specific for the 16S rRNA of C. chauvoei.
Vet Rec 2003 Feb 01
PMID:Outbreak of clostridial myocarditis in calves. 1258 99

Samples of serum from 76 gilts, 1440 sows, 1473 piglets and 3093 finishing pigs from 96 farrow-to-finish herds were tested for antibodies to encephalomyocarditis virus (EMCV) in microtitre serum neutralisation tests employing two strains of virus, one associated with myocarditis and the other with reproductive failure. The total seroprevalence of EMCV infection was 2.48 per cent. There was no significant difference between the seroprevalence of the reproductive failure strain (1.6 per cent) and the myocardial strain (1.85 per cent). The seroprevalence was higher in the gilts (6.57 per cent) and sows (5.13 per cent) than in the piglets (1 per cent) and finishing pigs (1.84 per cent), and the highest titres were observed in the sows (1:540) and finishing pigs (1:640). In the gilts, the difference in seroprevalence between the reproductive failure strain (3.95 per cent) and the myocardial strain (5.33 per cent) was wider than in the other groups.
Vet Rec 2006 Oct 14
PMID:Serological survey of encephalomyocarditis virus infection in pigs in France. 1704 Oct 64

Necrotising fasciitis and necrotising myositis are rare but serious life threatening conditions reported mainly in human beings and dogs. Most cases to date have been caused by beta-haemolytic streptococci of Lancefield groups A, B, C or G. Necrotising fasciitis has been reported only twice in cats and necrotising myositis has never been described. This paper describes a fatal case of necrotising fasciitis and myositis with pneumonia and septicaemia in a nine-year-old cat. The cat had been undergoing treatment for a suspected tear of the cranial cruciate ligament, but on the seventh day of treatment it suddenly deteriorated and died. On postmortem examination, there was an area of hair loss from its left hindlimb and discoloration of the underlying fascia and biceps femoris muscle. Severe necrotising fasciitis and myositis, with numerous intralesional Gram-positive coccoid bacteria, was diagnosed histologically. Other findings included necrotising pneumonia, pleuritis, focal encephalitis, myocarditis and nephritis. Culture of the affected tissues yielded a pure, heavy growth of Streptococcus canis.
Vet Rec 2008 Apr 05
PMID:Fatal necrotising fasciitis and myositis in a cat associated with Streptococcus canis. 1839 Aug 55

A 20 year-old healthy female volunteer participated in a clinical Phase I and IIa safety and efficacy trial with candidate malaria vaccine PfLSA-3-rec adjuvanted with aluminium hydroxide. Eleven weeks after the third and last immunization she was experimentally infected by bites of Plasmodium falciparum-infected mosquitoes. When the thick blood smear became positive, at day 11, she was treated with artemether/lumefantrine according to protocol. On day 16 post-infection i.e. two days after completion of treatment, she woke up with retrosternal chest pain. She was diagnosed as acute coronary syndrome and treated accordingly. She recovered quickly and her follow-up was uneventful. Whether the event was related to the study procedures such as the preceding vaccinations, malaria infection or antimalarial drugs remains elusive. However, the relation in time with the experimental malaria infection and apparent absence of an underlying condition makes the infection the most probable trigger. This is in striking contrast, however, with the millions of malaria cases each year and the fact that such complication has never been reported in the literature. The rare occurrence of cardiac events with any of the preceding study procedures may even support a coincidental finding. Apart from acute coronary syndrome, myocarditis can be considered as a final diagnosis, but the true nature and patho-physiological explanation of the event remain unclear.
 ...
PMID:Cardiac complication after experimental human malaria infection: a case report. 1995 49

Suspect serious adverse event associated with vaccination in gimmersMultiple congenital defects in a stillborn calfSuspected alpha mannosidosis in a bovine fetusClostridial myocarditis in a two-week-old lambOtitis media in pigs These are among matters discussed in the disease surveillance report for May 2017 from SAC Consulting: Veterinary Services (SAC C VS).
Vet Rec 2017 Sep 16
PMID:Suspect drug interaction in gimmers. 2891 90


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