Publications by authors named "Rosanne de Jong"
In October 2024, the first imported mpox clade Ib case was confirmed in Germany in an individual in their thirties returning from Rwanda. In this report we summarise the response from the public health service in North Rhine-Westphalia related to case management, contact tracing and institutional collaborations. Our findings highlight the importance of a coordinated public health response in the management of imported mpox cases and in preventing the transmission of mpox clade Ib in Germany and beyond.
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- A study examined foot-and-mouth disease (FMD) outbreaks in Asiatic black bears and Malayan sun bears at a Vietnamese rescue center, analyzing data from 79 bears and blood samples from 23 bears over time.
- The outbreaks showed significant attack rates (18.75% and 77.77%) and basic reproduction numbers (1.11 and 1.92), indicating the disease spreads easily among bears.
- Results revealed that older bears were less likely to exhibit clinical signs, and while most bears without symptoms tested positive for antibodies post-outbreak, it demonstrated that FMD can cause both clinical and subclinical diseases, leading to long-lasting immunity.
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- Rift Valley fever virus (RVFV) is a mosquito-borne disease affecting humans and animals in Africa and the Arabian Peninsula, with ongoing transmission among livestock reported between epidemics.
- A study in northern Tanzania from 2009 to 2015 estimated an average annual incidence of RVFV infections among cattle, goats, and sheep, revealing significant variation in infection rates across different villages.
- Human seroprevalence for RVFV was found to be 8.2%, showing a strong link between the rate of livestock infections and human cases, with raw milk consumption also associated with higher seropositivity among people.
A neurological syndrome of small ruminants, known locally as '', has been reported among pastoralist livestock keepers in Tanzania. This study was carried out in four affected pastoral communities to determine the prevalence and associated risk factors, characterise the clinical signs and investigate the aetiology of the syndrome. Questionnaires were administered at all households (n=480) within four study villages.
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