Rare plague case in dog exposes more than 100 people to Yersinia pestis
A Colorado dog with pneumonic plague exposed at least 116 people at a veterinary hospital to Yersinia pestis because of a delay in diagnosis, according to a report in Emerging Infectious Diseases.
In December 2017, a dog was brought into a veterinary clinic because of lethargy and fever 4 days after the 3-year-old mixed breed was found sniffing a dead prairie dog. After worsening symptoms, the dog was sent to Colorado State University Veterinary Teaching Hospital (CSU-VTH).
In the following 2 days before diagnosis, the dog was estimated to have exposed at least 46 animals and 116 people at CSU-VTH. The dog was humanely killed because of a poor prognosis.
Plague is rare in dogs, even in endemic regions, the authors said, but should be considered in dogs that have fever and respiratory signs with potential exposure in disease-endemic areas. Pneumonic plague is the most serious form of the disease and the only one that can be spread from person to person, which occurs via infectious respiratory droplets.
"This unique case highlights the public health response challenges in a large teaching institution," the authors concluded.
Mar 13 Emerg Infect Dis study
Butterball recalls 78,000 pounds of ground turkey after Salmonella cases
Yesterday the US Department of Agriculture's Food Safety and Inspection Service (FSIS) announced that Butterball was recalling 78,164 pounds of ground raw turkey products because of a possible contamination with Salmonella Schwarzengrund.
So far five people in two states have been sickened with the bacterium. Butterball ground turkey collected from the home of four patients in Wisconsin contained matching Salmonella isolates.
The meat in question was produced on Jul 7, 2018, and the recall includes 48-ounce and 16-ounce plastic-wrapped trays of "Butterball everyday fresh ground turkey with natural flavoring." All products have a sell or freeze-by date of Jul 26, 2018.
"FSIS is concerned that some product may be frozen and in consumers' freezers," the agency said. "Consumers who have purchased these products are urged not to consume them. These products should be thrown away or returned to the place of purchase."
Mar 13 FSIS press release
WHO describes new details about Saudi MERS cluster
The World Health Organization (WHO) released new details about the hospital-based MERS-CoV outbreak in Wadi ad-Dawasir, Saudi Arabia.
The WHO said the outbreak of MERS-CoV (Middle East respiratory syndrome coronavirus) began at the end of January, and as of Feb 16, 42 cases, including 9 involving healthcare workers, were recorded. Five patients have died, resulting in a case-fatality rate (CFR) of 11.9%. The WHO said 7 cases were primary, and 35 were secondary cases, including household or hospital contacts.
Three samples taken from camels at primary case-patients' homes also tested positive for the virus, suggesting both animal and human transmission in the outbreak. In 2017, Wadi ad-Dawasir reported a similar but smaller outbreak, which involved 15 cases, including 3 healthcare workers.
"Frequent occurrences of small sized hospital outbreaks characterize MERS' occurrence in Saudi Arabia. A total of 24 hospital outbreaks have occurred since 2015 resulting in 351 cases and 103 associated deaths (CFR: 29.34%)," the WHO said. In these outbreaks, roughly 30% of the patients are healthcare workers.
And yesterday Emerging Infectious Diseases published new information about the clinical profiles of Saudi MERS patients. Researchers analyzed 33 clinically diverse patients admitted to a hospital in 2015 and 2016, recording both symptoms and serum antibody responses.
"Among case-patients who died, development of robust neutralizing serum antibody responses during the second and third week of illness was not sufficient for patient recovery or virus clearance," the authors said. "Fever and cough among mildly ill patients typically aligned with RNA detection in the upper respiratory tract; RNA levels peaked during the first week of illness."
Feb 17 WHO report
Mar 13 Emerg Infect Dis study
Bulgaria, Taiwan, South Africa report new high-path avian flu outbreaks
H5 strains of highly pathogenic avian flu have affected poultry in Bulgaria, Taiwan, and South Africa, the World Organization for Animal Health (OIE) reported yesterday and today.
In Bulgaria H5 avian flu sickened 20 birds among a flock of 3,200 poultry near Lovech, a city in the north-central part of the country. Officials plan to cull the flock to prevent disease spread. The outbreak began yesterday.
Taiwanese officials reported two H5N2 outbreaks on chicken farms on the west side of the island, in Yunlin and Changhua counties. Together the virus killed 82 of 53,103 susceptible birds, and officials euthanized the surviving poultry. The farms have also been placed under movement restrictions to prevent the transport of birds to other farms.
The outbreaks were first detected on Feb 25 and Mar 4. Taiwan has combatted a series of H5N2 outbreaks for months.
And in South Africa, officials confirmed H5N8 on a commercial ostrich farm in the province of Free State in an outbreak that began on Feb 1. They reported 75 H5N8 infections among 4,372 susceptible ostriches. Officials plan to cull the flock.
Mar 13 OIE Bulgaria report
Mar 14 OIE Taiwan report
Mar 14 OIE South Africa report