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APHA disease Surveillance report headlines
Mannheimiosis in dairy herds
Joint ill in neonatal lambs
Septicaemia due to Klebsiella pneumoniae subspecies pneumoniae in piglets
Localised mortality in red squirrels in north-east England
Focus on tickborne diseases of sheep
Highlights from the scanning surveillance network
Several outbreaks of mannheimiosis have been diagnosed recently in dairy herds. Disease due to Mannheimia haemolytica infection occurs predominantly in calves; it occasionally affects neonates, most likely in association with insufficient colostrum intake.
Septicaemic infection by M haemolytica was confirmed by the APHA Starcross Veterinary Investigation Centre (VIC) as the cause of the deaths of both unweaned and weaned calves in a dairy herd where 260 calves of various ages were housed in group pens in a single large shed.
One unweaned and one weaned calf were submitted for postmortem examination. At the time of submission, four calves had died within 24 hours; many others were coughing, and some were scouring.
Both calves showed similar gross pathology, which included fibrinous peritonitis, pleuritis, pericarditis and polyarthritis. No other respiratory or enteric pathogens were detected, as is sometimes seen in mannheimiosis.
About this report
This report is produced each month by the APHA Surveillance Intelligence Unit and the six Species Expert Groups (livestock and wildlife). The international horizon-scanning summaries are produced by the Defra/APHA International Disease Monitoring (IDM) team, notifiable disease reports by the APHA Veterinary Exotic and Notifiable Disease Unit (VENDU), and threat analysis by the cross-agency Veterinary Risk Group (VRG). The report is drawn from scanning surveillance information, data and reports produced by the APHA veterinary investigation centres and non-APHA partner postmortem examination providers contributing to the Veterinary Investigation Diagnosis Analysis (VIDA) database and complying with standardised diagnostic and laboratory testing criteria. Other livestock and wildlife scanning surveillance reports may also be found at www.gov.uk/government/collections/animal-disease-surveillance-reports
Many bacterial and viral respiratory pathogens are commensals of the respiratory tract of healthy cattle
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