Publications by authors named "Brom R"

Bluetongue (BT) is a viral vector borne disease primarily affecting ruminants such as sheep, cattle, and goats. On 3 September 2023, the Netherlands reported the first case of bluetongue virus serotype 3 (BTV-3/NET2023)), after being BTV free for eleven years. Vaccination with inactivated BT vaccines for serotype 3 has been applied in the Netherlands since May 2024.

View Article and Find Full Text PDF
Article Synopsis
  • In 2023, an outbreak of bluetongue virus serotype 3 (BTV-3) in the Netherlands severely affected ruminants, particularly causing clinical signs and mortality in sheep.
  • Data from monitoring systems showed BTV-3 infections confirmed in multiple animal species, with sheep experiencing the most severe effects.
  • The study suggests that BTV-3 might persist through winter, emphasizing the need for effective vaccines to mitigate future outbreaks.
View Article and Find Full Text PDF
Article Synopsis
  • In September 2023, the bluetongue virus serotype 3 (BTV-3) outbreak in the Netherlands affected over 5,000 livestock farms, leading to unusually high rates of sickness and death in sheep compared to past outbreaks.
  • The study analyzed livestock movement and BTV-3 notification data from 2020 to 2023 to measure the virus's impact on sheep and goats, revealing significant increases in mortality rates during the outbreak.
  • Notably, mortality in infected areas surged 4.2 times for lambs and 4.6 times for adult sheep, with confirmed cases showing even higher rates, while around 4,000 additional goat deaths were also reported.
View Article and Find Full Text PDF
Article Synopsis
  • * The Netherlands was declared free of BTV in February 2012, but new cases were detected in September 2023, confirmed as serotype 3.
  • * The source of this latest infection is unknown, highlighting the need for ongoing monitoring and new prevention strategies to control BTV spread in the region.
View Article and Find Full Text PDF

Monitoring and surveillance systems have an increasingly important role in contemporary society ensuring high levels of animal health and welfare, securing export positions, and protecting public health by ensuring animal health and product safety. In the Netherlands, a voluntary monitoring and surveillance system is in place since 2003 to provide a broad overview of livestock trends in addition to disease-specific surveillance systems, including insight into the occurrence and prevalence of new and emerging non-notifiable diseases and disorders. Being a major surveillance component of this monitoring and surveillance system for small ruminant health in the Netherlands, an annual data analysis on routine census data is performed to retrospectively monitor trends and developments regarding goat health and welfare.

View Article and Find Full Text PDF

The retrovirus causing caprine arthritis encephalitis (CAE), a slowly progressive inflammatory disease in goats, belongs to the group of small ruminant lentiviruses (SRLVs) which cause lifelong infections that ought to be avoided for animal welfare as well as economic reasons. SRLV accreditation has been in place for forty years in The Netherlands and is based on the screening of small ruminant sera for specific antibodies. This paper evaluates 38 dairy goat herds that lost CAEV accreditation between 2012 and 2022.

View Article and Find Full Text PDF

In contemporary society and modern livestock farming, a monitoring and surveillance system for animal health has become indispensable. In addition to obligations arising from European regulations regarding monitoring and surveillance of animal diseases, The Netherlands developed a voluntary system for the monitoring and surveillance of small ruminant health. This system aims for (1) early detection of outbreaks of designated animal diseases, (2) early detection of yet unknown disease conditions, and (3) insight into trends and developments.

View Article and Find Full Text PDF

Q fever is an almost ubiquitous zoonosis caused by . This organism infects several animal species, as well as humans, and domestic ruminants like cattle, sheep and goats are an important animal reservoir of . In 2007, a sudden rise in notified human Q fever cases occurred in The Netherlands, and by the end of 2009, more than 3500 human Q fever patients had been notified.

View Article and Find Full Text PDF

To start milk production, dairy goats need to give birth at least once. While most female kids are reared to become the next generation of dairy goats, only a small proportion of male kids (buck kids) are reared with reproduction aims. The market for buck kid meat, especially within Northern European countries, is currently relatively small compared to the number of bucks born.

View Article and Find Full Text PDF

Results of laboratory investigations of ovine and caprine cases of abortion in the lambing season 2015-2016 were analyzed, using pathology records of submissions to Royal GD (Deventer, the Netherlands) from January until and including April 2016, in comparison with the results of two accessible alternative techniques for sampling aborted lambs and kids, swabbing the fetal oropharynx and puncture of the fetal lung. was the main cause of abortion in sheep as well as in goats. Other causes of abortion were spp.

View Article and Find Full Text PDF

Sheep were domesticated around 9000 BC in the Middle East, and since then milk from sheep gradually became very popular, not only for drinking but also for making cheeses and other dairy products. Nowadays, these dairy products are also important for people with an allergy to cow milk, and these products are an essential part of the local daily diet in regions of the world that are not suitable for cows and goats. Consumption of raw milk and raw milk products has a zoonotic risk, and with regard to sheep, the main pathogens associated with such dairy products are: , spp.

View Article and Find Full Text PDF
Article Synopsis
  • Pseudopregnancy is a common reproductive issue in dairy goats, with a study evaluating its incidence and risk factors on Dutch farms.
  • The study found that the annual rate of pseudopregnancy ranged from 1% to 54%, averaging 17%, and had significant links to extended lactation and ultrasound use.
  • While the recommended treatment is two doses of prostaglandins, only 10% of farms followed this correctly, with many using higher doses than advised.
View Article and Find Full Text PDF
Article Synopsis
  • Coxiella burnetii causes significant issues in livestock, including abortions and reduced reproductive efficiency, and poses zoonotic risks to humans as Query fever.
  • Diagnostic tests for the infection are not very sensitive, and there are limited treatment and prevention options available.
  • The consensus statement aims to guide veterinarians and public health officials on managing C. burnetii in livestock, focusing on testing methods, on-farm outbreak management, and biosecurity practices to reduce the risk of transmission to humans.
View Article and Find Full Text PDF

The biological behavior of melanoma is unfavorable in the elderly when compared to young subjects. We hypothesized that differences in T-cell responses might underlie the distinct behavior of melanoma in young and old melanoma patients. Therefore, we investigated the circulating T-cell compartment of 34 patients with metastatic melanoma and 42 controls, which were classified as either young or old.

View Article and Find Full Text PDF

The number of elderly patients with renal cell carcinoma is rising. Elderly patients differ from their younger counterparts in, among others, higher incidence of comorbidity and reduced organ function. Age influences outcome of surgery, and therefore has to be taken into account in elderly patients eligible for cytoreductive nephrectomy.

View Article and Find Full Text PDF

Schmallenberg disease has emerged in North-Western Europe in 2011 and has since spread widely, even across the European borders. It has the potency to infect many, mainly ruminant, species, but seems to lack zoonotic potential. Horizontal transmission occurs through various Culicoides biting midges and subsequent trans-placental transmission causes teratogenic effects.

View Article and Find Full Text PDF

Q fever is an almost ubiquitous zoonosis caused by Coxiella burnetii, which is able to infect several animal species, as well as humans. Cattle, sheep and goats are the primary animal reservoirs. In small ruminants, infections are mostly without clinical symptoms, however, abortions and stillbirths can occur, mainly during late pregnancy.

View Article and Find Full Text PDF

In 2007, Q fever started to become a major public health problem in the Netherlands, with small ruminants as most probable source. In order to reduce environmental contamination, control measures for manure were implemented because of the assumption that manure was highly contaminated with Coxiella burnetii. The aims of this study were 1) to clarify the role of C.

View Article and Find Full Text PDF

In the period from 2005 to 2009, Coxiella burnetii was a cause of abortion waves at 28 dairy goat farms and 2 dairy sheep farms in the Netherlands. Two years after the first abortion waves, a large human Q fever outbreak started mainly in the same region, and aborting small ruminants were regarded as most probable source. To distinguish between infected and noninfected herds, a surveillance program started in October 2009, based on PCR testing of bulk tank milk (BTM) samples, which had never been described before.

View Article and Find Full Text PDF

In a sheep farm in the Netherlands with a suspected Haemonchus contortus resistance to monepantel (Zolvix®, Novartis Animal Health), a fecal egg count reduction test was carried out in two groups of lambs, according to the method of the World Association for the Advancement of Veterinary Parasitology. Group 1 was the untreated control group, and group 2 was treated with monepantel at the manufacturer's recommended dose rate. Efficacy of treatment with monepantel was 0%.

View Article and Find Full Text PDF

Background: Little is known about the development of chronic Q fever in occupational risk groups. The aim of this study was to perform long-term follow-up of Coxiella burnetii seropositive veterinarians and investigate the course of IgG phase I and phase II antibodies against C. burnetii antigens and to compare this course with that in patients previously diagnosed with acute Q fever.

View Article and Find Full Text PDF
Article Synopsis
  • This study aimed to assess the antibiotic usage in the small ruminant industry in the Netherlands during 2011 and 2012, focusing on data from twelve large veterinary practices.
  • The results showed that the median antibiotic usage was zero for most small ruminant farms, with the highest use in professional goat herds, while professional sheep farms and small-scale operations had very low usage overall.
  • The findings indicate low antibiotic use overall, suggesting a minor contribution to antibiotic resistance, but underscore the importance of responsible antibiotic use due to potential zoonotic risks.
View Article and Find Full Text PDF

In Northwestern Europe, an epizootic outbreak of congenital malformations in newborn lambs due to infection with Schmallenberg virus (SBV) started at the end of 2011. The objectives of this study were to describe clinical symptoms of SBV infection, the effect of infection on mortality rates, and reproductive performance in sheep, as well as to identify and quantify flock level risk factors for SBV infections resulting in malformations in newborn lambs. A case-control study design was used, with 93 case flocks that had notified malformed lambs and 84 control flocks with no such lambs.

View Article and Find Full Text PDF