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Genetic change increased bird flu severity during U.S. spread

Scientists at St. Jude Children's Research Hospital discovered how the current H5N1 avian influenza virus gained new genes and greater virulence as it spread across North America. The researchers found that the virus could severely infect the brains of mammalian research models, a notable departure from previous related strains.

SourceSt. Jude Children's Research Hospital·JournalNature Communications·TypeExperimental study·DateMay 30, 2023

Female butterflies breed despite male shortage

Despite a parasite killing most males, female monarch butterflies still find mates about 1.5 times on average, suggesting high reproductive success throughout the year round. Uninfected females produce healthy male offspring, allowing the parasite to be transmitted in rare populations.

SourceUniversity of Exeter·JournalEcology and Evolution·DateApr 17, 2023

Bushmeat consumption unchanged by COVID-19 in Kenya and Tanzania border towns, new study reveals

A new study found that despite awareness of COVID-19 risks, bushmeat consumption remained unchanged in rural communities along the Kenya-Tanzania border. Education levels played a critical role in understanding disease transmission. Increased food costs caused by regulations led to increased bushmeat consumption.

SourceInternational Livestock Research Institute·JournalFrontiers in Ecology and Evolution·TypeSurvey·DateApr 6, 2023

Newly discovered probiotic could protect Caribbean corals threatened by deadly, devastating disease

Researchers have identified a probiotic that can protect Caribbean corals from stony coral tissue loss disease (SCTLD), a deadly and rapidly spreading affliction. The probiotic treatment has been shown to stop or slow the progression of the disease in infected coral fragments, offering an antibiotic-free alternative.

SourceSmithsonian·JournalCommunications Biology·TypeExperimental study·DateApr 6, 2023

Survival is a disgusting matter

A recent study published in Journal of Animal Ecology has identified disease avoidance strategies in various animal species, including humans. The research provides insights into how emotions like disgust help protect against diseases and has implications for human health and conservation efforts.

SourceKyoto University·JournalJournal of Animal Ecology·TypeExperimental study·DateApr 5, 2023

News coverage highlights some threats to deer conservation but may mislead or omit key information

A study analyzed news reports on Brazilian deer species between 2011 and 2021, finding that news coverage gave different weights to threats compared to the IUCN Red List. News items properly identified main threats like poaching and habitat loss but underestimated livestock diseases and overestimated road kill.

Changing landscapes alter disease-scapes: Study

Researchers used cumulative pressure mapping and machine learning to understand the impact of human pressures on six vector-borne diseases. They found that changes in land use can lead to abrupt shifts in infectious disease burdens and public health needs.

SourceGriffith University·JournalNature Sustainability·TypeComputational simulation/modeling·DateMar 13, 2023

Malaria infection harms wild African apes

New research on malaria-infected bonobos shows that the infection harms them, too, with symptoms including fever and increased mortality risk. The study also finds that bonobos have a protective variant of an immune gene similar to one found in humans, suggesting a selective advantage for those individuals.

SourceWashington University in St. Louis·JournalNature Communications·TypeExperimental study·DateFeb 23, 2023

New synthetic skin may unlock blood-sucking secrets of mosquitoes

Researchers have developed a new synthetic skin, made of hydrogels, to study how mosquitoes transmit deadly diseases. The hydrogel system can mimic different blood vessel patterns, allowing for more consistent testing and analysis. This breakthrough may help identify ways to prevent the spread of disease.

SourceTulane University·JournalFrontiers in Bioengineering and Biotechnology·TypeExperimental study·DateFeb 9, 2023

Statistics remove bias from debate about how well mouse models mimic human disease

A team of biostatisticians created a framework to evaluate the congruence and discordance of laboratory animals with specific human diseases. The tool removes bias from scientific interpretation of animal data for human conditions, revealing that some models mimic biological mechanisms well while others poorly.

SourceUniversity of Pittsburgh·JournalProceedings of the National Academy of Sciences·DateFeb 2, 2023

Despite concerns over antimicrobial resistance, global antimicrobial use in animals could increase by 8% by 2030 if stronger restrictions are not applied worldwide

A new study predicts global antimicrobial use in food-producing animals will increase by 8% by 2030 if stronger regulations are not implemented worldwide. The findings highlight the need for stricter controls on antimicrobial use, which has raised concerns over antimicrobial resistance.

SourcePLOS·JournalPLOS Global Public Health·DateFeb 1, 2023

Small, convenient mosquito repellent device passes test to protect military personnel

A new, portable mosquito repellent device has been tested successfully in a four-week semi-field study, showing effectiveness in preventing multiple species of mosquitos from entering the testing site. The device uses transfluthrin as a spatial repellent and eliminates the need for applying topical repellents or insecticides.

SourceUniversity of Florida·JournalCurrent Research in Parasitology and Vector-Borne Diseases·TypeExperimental study·DateJan 27, 2023

Study proves that antivenom reduces risk of skin necrosis in patients bitten by brown recluse spider

A six-year study involving 146 patients found that antivenom reduced the risk of skin necrosis in those bitten by brown recluse spiders. Administration of the substance was safe with minimal adverse effects, particularly when given within 48 hours of the incident.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalPLOS Neglected Tropical Diseases·TypeObservational study·DateJan 11, 2023

Ticked off: New device may offer a better way to prevent tick bites

A new controlled-release device has been tested at UMass Amherst for its effectiveness in preventing tick bites. The device uses synthetic pyrethroids to create a spatial repellent that alters the behavior of ticks, making them less likely to climb and more likely to detach or fall off. The results show promising promise in reducing th...

SourceUniversity of Massachusetts Amherst·JournalPLOS ONE·TypeObservational study·DateNov 8, 2022

Intensified meat production in response to climate change would bring short-term rewards, long-term risks

A new analysis finds that intensified meat production can bring short-term rewards, such as decreased deforestation, but long-term risks, including the spread of zoonotic diseases like avian influenza. The study suggests that shifting to plant-rich options and supporting forest protections may be necessary to mitigate these risks.

SourceNew York University·JournalScience Advances·TypeSystematic review·DateNov 2, 2022

Sickly shades of grey: Disease outbreaks influence the color of wolves across North America

Research from the University of Oxford and Yellowstone National Park found that wolves with black coats are more likely to survive canine distemper virus (CDV) outbreaks. This suggests that the gene for a black coat may provide protection against the virus, leading to its increased frequency in areas with CDV outbreaks.

SourceUniversity of Oxford·JournalScience·TypeObservational study·DateOct 20, 2022

Scientists create a DNA test that identifies Lyme disease in horses

A Rutgers scientist has developed a highly sensitive DNA test that can detect Lyme disease in horses, a condition that can cause long-term complications. The test, called genomic hybrid capture assay, was tested on a sick horse and successfully identified the pathogen, allowing for early diagnosis and treatment.

SourceRutgers University·JournalJournal of Veterinary Diagnostic Investigation·TypeExperimental study·DateAug 17, 2022

Is brain fog limited to humans?

A study found that brain fog-like impairment is a problem in many animal species due to infection and disease, including humans. Cognitive impairments have been observed in birds, bees, rats, and other species, with various causes such as parasite damage, immune response, and malnutrition.

SourceHamilton College·JournalCell·TypeLiterature review·DateAug 8, 2022

Male dogs four times more likely to develop contagious cancer on nose or mouth than females

A new study by University of Cambridge researchers found that male dogs are four to five times more likely than female dogs to be infected with the oro-nasal form of Canine Transmissible Venereal Tumour. This unusual cancer is infectious and can spread between dogs through contact, commonly affecting genitals but also the nose and mouth.

SourceUniversity of Cambridge·JournalVeterinary Record·DateJul 3, 2022