All Veterinary Medicine & Zoonoses articles – Page 3
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NewsHow H5N1 bird flu hid unrecognized for weeks in dairy cattle
A new study reveals why H5N1 influenza infection looked so different in dairy cows, offering a framework for spotting new host species quickly. Instead of affecting the lungs, it caused severe infection in the cows’ udders, largely sparing the lungs.
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NewsOropouche virus has already infected more than 5 million people in Brazil, study suggests
The recent Oropouche virus outbreak in 2023 has drawn attention in Brazil and other Latin American countries because of its scale and rapid spread. Researchers estimate that since 1960, the virus has infected approximately 9.4 million people in Latin America and the Caribbean.
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NewsThe drive to protect Missouri’s $4 billion cattle industry from tick threats
A tiny parasite-carrying tick is posing an outsized threat to Missouri’s cattle. Now, researchers are stepping in to protect the state’s $4 billion cattle industry by tracking different ways the American dog tick spreads a deadly disease known as bovine anaplasmosis.
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NewsSingle amino acid change may help viruses jump from bat to human
New research reports that a single amino-acid change alters how a coronavirus protein interacts with the human and bat immune systems, shifting the body’s response to infection.
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NewsJust 10 viral particles can cause H5N1 avian flu infection in cows
Just 10 viral particles of the H5N1 bird flu that caused hundreds of influenza outbreaks in U.S. dairy cattle can cause infection in cows, a new study shows. The research also hints at why the outbreaks have confounded scientists, farmers and livestock handlers hoping to contain and prevent the disease.
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NewsStudy deploys DNA to track infectious bacteria from raccoons via rivers to humans
The emerging infectious bacterium Escherichia albertii has caused outbreaks of severe food poisoning and hospitalized people through contaminated water and foods, such as salad ingredients. A new study suggests a pathway by which invasive raccoons transmit infections to humans.
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NewsLouse-borne relapsing fever: How the pathogen evades the immune system
A research team has now identified and characterized five closely related proteins that are crucial for the survival of Borrelia recurrentis in the human body. These so-called Chi proteins appear to have evolved from a common ancestor and are therefore considered homologous.
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NewsPathogenic fungus transmitted by domestic cat scratches is present in wild animals
Researchers detected pathogenic species of Sporothrix in the internal organs of mammals, birds, and reptiles that were killed by vehicles on Brazilian roads. The study reveals a new reservoir for fungi and highlights the need for surveillance.
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NewsAs California warms, cases of dengue fever are expected to grow
Historically, dengue fever has been rare in California. But according to new research, a warming climate is making parts of the state more hospitable to the illness — and the mosquitoes that carry it.
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NewsClimate-driven dengue surge: Predicting future outbreak risk across Costa Rica
Scientists have developed a practical framework for predicting how shifting temperature and precipitation patterns could influence dengue fever outbreaks across Costa Rica.
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NewsChina’s psittacosis knowledge gap: A scoping review calls for coordinated action
Psittacosis—a bacterial pneumonia transmitted from birds to humans—is experiencing a notable resurgence in China. A new review presents a sobering picture: psittacosis is epidemiologically substantive, clinically serious, and chronically underserved by institutional resources and public health infrastructure.
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NewsResearchers test two treatments to protect against deadly cattle disease
As cases of a deadly cattle disease rise in Arkansas, researchers are testing two treatments they hope will help ranchers protect their herds. The disease is bovine theileriosis and is caused by the parasite Theileria orientalis Ikeda, carried primarily by the invasive Asian longhorned tick.
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NewsAll-new lab in Kenya fills critical gap in wildlife health
Conservation stakeholders gathered to celebrate the official opening of the Laboratory in Northern Kenya (LiNK), an all-new veterinary diagnostic lab designed to fill a critical need for accessible diagnostic infrastructure in the remote region.
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NewsAccelerating chikungunya vaccine development in Africa: Launch of the ACT-CHIK Project
Funded by the Global Health EDCTP3 Joint Undertaking, a new €15.3 million project coordinated by Institut Pasteur brings together seven partners across four continents to advance clinical trials and prepare for the manufacturing of a chikungunya vaccine in Africa.
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NewsNew tool quickly sequences hantavirus genome
The genetic diversity of hantavirus and the low levels of virus typically found in patient samples make sequencing its genome particularly challenging. Researchers have developed a new, effective, and low-cost way to carry out whole genome sequencing for hantaviruses.
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NewsNew model could help track deadly viruses back to their source
A new predictive model could help scientists more efficiently identify the reservoirs of emerging zoonotic viruses and dangerous pathogens like Ebola that can spill over from animals into humans. It relies on detailed information collected on suspected reservoir species to identify key windows.
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NewsDengue vaccine shows favorable safety profile in travellers from non-endemic regions
A prospective study of more than 1,000 people vaccinated with TAK-003 in Catalonia found no serious adverse events and provides new evidence on the vaccine’s short-term safety in travelers.
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NewsPhase 1 clinical trial set to begin on first leishmaniasis vaccine
A phase 1 clinical trial testing the safety of a leishmaniasis vaccine is set to begin in the coming months. The live vaccine, found to be safe in animals, is expected to be tested in humans later this year.
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NewsNew study suggests fish gut microbe helps regulate ocean health
New research reveals a potential link between the gut microbes of a fish and global ocean processes, offering new insight into how marine ecosystems help regulate ocean chemistry and the marine carbon cycle.
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NewsResearchers discover tick protein that may block disease transmission
Researchers have found that ticks produce an exosomal glycine-rich protein that plays a vital role in helping ticks feed and transmit viruses. When they used genetic tools to silence the gene responsible for this protein, ticks lacking the protein struggled to feed effectively and showed reduced body weight after feeding.