Researchers at Penn State University found that immunization with a particular type of malaria vaccine can create conditions for the evolution of more severe disease-causing parasites. These parasites evolved in response to vaccination, but the exact mechanism is still unknown.
Two species of single-cell parasites have acquired new genes that work together to make an essential nutrient, allowing them to exploit their hosts more efficiently. This discovery highlights the importance of horizontal gene transfer in the rapid evolution of these tiny organisms.
Researchers from the Zoological Society of London identified the factors influencing the success of malaria parasites in New Zealand bird species, including two previously unknown strains. The study's findings provide insights into the traits that enable parasites to survive and thrive in new environments.
A new diagnostic tool has been found to significantly improve clinical practice among veterinary and animal health officers in Uganda. The tool, a low-cost decision support card, was introduced to 15 clinical participants and led to an increase in the number of clinical signs recorded, suggesting improved examination skills.
A team of microbiologists at UMass Amherst has made an advance in understanding the replication of parasites like African sleeping sickness and chagas disease. By characterizing key proteins' organization, they discovered a novel mechanism that could lead to the development of new treatments.
Researchers at the University of Gothenburg are working on developing substances that can prevent parasites, bacteria, and fungi from producing essential proteins. If successful, this could lead to the development of new drugs for several major diseases, including cancer, parasitic diseases, and bacterial and fungal infections.
Researchers developed a technique to genetically differentiate Plasmodium falciparum parasites, linking infection with new parasites to the risk of clinical disease. This tool could help evaluate new prevention strategies and vaccines, as well as understand how anti-malarial treatments work.
Researchers discovered that T cells employ a Lévy walk strategy, characterized by short and long movements, to track down parasites like animal predators. This insight into immune-cell movement patterns can inform novel approaches to combat diseases such as cancer and HIV/AIDS.
A University of Colorado study found that increases in parasite diversity lead to a decrease in the infection success rate of virulent parasites, including one that causes malformed limbs and premature death. Higher biodiversity can help protect against certain diseases by acting as a buffer against virulent pathogens.
Researchers found a common protein target among severe malaria strains, which can be blocked by antibodies to prevent rosette formation and severe illness. The discovery may inform the development of new treatments or vaccines against life-threatening cases of malaria.
A genetics study identifies key genome region underlying artemisinin resistance in malaria parasite, increasing concern about its spread to India and Africa. The region may provide a tool for mapping resistance, but containing its spread is expected to be challenging.
A recent study published in the Lancet found a critical point in global efforts to control and eliminate malaria due to artemisinin resistance in western Thailand. Researchers identified a major region of the malaria parasite genome associated with artemisinin resistance, raising hope for effective molecular markers to monitor its spread.
A study by Spanish researchers confirms ticks' ability to adapt to climate, posing a risk to public health and animal conservation. The parasites carry exotic illnesses and increase the prevalence of endemic pathogens, especially in arid environments.
Research shows that Tsimane men have lower baseline testosterone levels compared to US men, but exhibit similar short-term spikes in response to competition. This finding suggests a unique adaptation to their environment, where parasites and pathogens are more prevalent.
Researchers found that the absence of a single gene in Neospora makes it less able to evade the immune response in mice and other species. This may explain why Neospora has a limited host range compared to Toxoplasma, which has more surface proteins necessary for host adaptation.
American signal crayfish are gaining the upper hand in Britain's waterways, threatening native white-clawed crayfish populations. The invasive species' greater appetite for food and reduced susceptibility to parasites have significant implications for biodiversity.
A new mathematical model reveals that hosts can gain a unique evolutionary advantage when interacting with parasites through multiple traits. This discovery may help explain how humans, plants, and animals evolve to withstand parasite attacks.
Research proposes that parasite evolution plays a key role in host sex-biased parasitism and disease expression. Characteristics like morphology and behavior differ between sexes, posing unique challenges for parasites, which may adapt more to one sex than the other.
A recent study published in EcoHealth found that squirrels and raccoons will abandon food to avoid ticks, indicating they may be aware of the parasite's threat. This new understanding of the ecology of fear extends to parasites and has implications for human health as ticks are vectors of emerging diseases.
A recent study by Emory University found that fruit flies infected with blood-borne parasites consume alcohol to increase their survival rate. The researchers discovered that the toxic effects of alcohol can be protective against infectious disease and raise an important question about whether other organisms, including humans, could c...
Fruit flies seek out alcohol to kill off blood-borne parasitic wasps, showing a potential natural remedy for fighting infection. Environmental alcohol protects fruit flies from parasitism, and consuming alcohol leads to death of the wasps.
Scientists developed a new strategy to fight infectious diseases by blocking pathogen entry into cells rather than killing the bug itself. This approach targets specific elements of the infection process inside the host body and has shown promising results in treating Leishmania parasites.
Research reveals that most seabirds are free of malaria parasites, but certain groups like frigatebirds and birds with longer fledgling periods are more susceptible. Climate conditions do play a role, but not as expected, with warmer temperatures increasing rates of infection.
Researchers at Albert Einstein College of Medicine have developed a novel antimalarial agent, BCX4945, which kills the deadliest malaria parasite by starving it of vital building blocks. The study shows promising results in non-human primates, paving the way for more potent therapies against this deadly disease.
A new study found that global warming increases the growth rate of parasites in fish, leading to altered host behavior and potentially devastating effects on fish reproduction. The research also suggests that parasites can manipulate host behavior to seek out warmer temperatures.
Researchers have identified a new class of compounds, known as the imidazolopiperazine (IP) cluster, that could target both liver and blood stages of malaria infection. The IP cluster, including compound GNF179, showed promise in treating malaria-infected mice, extending survival by an average of 19 days.
A team of scientists from Scripps Research Institute has identified a family of chemical compounds that could lead to the development of novel drugs capable of not only alleviating symptoms but also preventing the deadly disease. The new class of compounds is highly effective against malaria parasites in both the blood and liver stages.
A study found contrasting patterns of malaria drug resistance in human blood and mosquito midgut samples, with pyrimethamine-resistant parasites dominating human blood and cycloguanil-resistant mutants prevalent in mosquitoes.
A new artemisinin-based treatment has been shown to be highly effective in treating uncomplicated malaria, particularly in regions with high re-infection risks. The study, which involved over 4,000 children in sub-Saharan Africa, found that the combination therapy had excellent efficacy and significantly reduced recurrent infections.
Scientists discovered a deadly parasite with duplicated, tripled, and quadrupled chromosomes, defying nature's rule. This bizarre occurrence could be an adaptation to survive harsh environmental stresses, such as drug pressure.
Researchers found that Leishmania parasites have almost identical DNA sequences within species populations, suggesting a small number of genes cause different symptoms. The parasite's evolutionary success may be driven by genetic abnormalities leading to copy number variation, which increases understanding of drug resistance mechanisms.
A new malaria vaccine combines multiple proteins from various parasite types, inducing antibodies against a wide range of parasites. The vaccine has shown improved protection in children in endemic areas and could be especially useful for vulnerable groups.
Researchers at the University of South Florida have discovered that dormant malaria parasites in red blood cells can recover after antimalarial drug therapy, contributing to treatment failure. The study found a positive association between the number of dormant parasites and when malaria infection re-emerged.
Geneticist Tad Sonstegard and his team identified quantitative trait loci (QTL) for resistance to gastrointestinal nematode parasites in African native sheep. The study found significant QTL on chromosomes 3, 6, 14, and 22 that can improve production of grazing animals.
Research on Galapagos mockingbirds reveals co-evolutionary history with parasites, affecting bird survival and conservation. The study's findings highlight the importance of considering parasite histories in re-introducing birds to new islands.
A study published in Nature Genetics reveals that genetic parasites invaded the mammalian genome over 100 million years ago and transformed reproductive biology. This led to the development of the placenta, which nurtures young within the womb.
Researchers at Cornell University discovered how Toxoplasma gondii evades the human immune system by hijacking immune cells and manipulating cell behavior. The parasite's ability to control its host's immune system challenges common conceptions of pathogen-host interactions.
Researchers have discovered how malaria parasites camouflage themselves from the immune system of pregnant women, allowing them to go undetected. This finding has significant implications for developing a vaccine to protect expectant mothers from maternal malaria.
A recent Oregon State University study suggests that parasites in fish can have profound impacts on fish health and contribute to salmon mortality. The research found that heavy parasite loads can affect salmon growth, immune function, and other issues, and are linked to land use changes such as logging and agriculture.
Research warns that using powerful antibiotics to treat diseases like MRSA and malaria can accelerate the emergence of resistant strains. The study suggests strategies for slowing resistance spread and preventing mutations.
Research finds that animal species large and small are governed by the same rule for how common they are in an ecosystem. Body size and food chain position determine abundance and biomass production.
Scientists at UC Santa Barbara have discovered two general rules for ecosystem abundance: one based on body size and food chain position, and another that biomass production is independent of animal size or type.
Researchers have discovered that malaria parasites employ camouflage to avoid detection by the immune system in pregnant women. This allows the parasite to infect the placenta, putting both the mother and unborn child at risk. The study provides insight into the complex ways in which malaria evades the human immune response.
Researchers found that sexual reproduction via cross-fertilization keeps host populations one evolutionary step ahead of coevolving parasites. This allows parents to produce offspring resistant to the parasites, while self-fertilization leads to extinction.
A new Cochrane Systematic Review finds that Rapid Diagnostic Tests (RDTs) are highly accurate in detecting malaria parasites, with a success rate of at least 19 out of 20 cases. This development holds promise for improving diagnosis and treatment of malaria in resource-constrained settings.
Researchers found that Daphnia's defense against predators makes it more vulnerable to a virulent yeast parasite, Metschnikowia. The study suggests that increasing predator densities may not be the best solution to control disease as it can lead to increased susceptibility to other parasites.
A new study reveals a powerful vaccination approach that targets the liver stage of malaria parasites, providing long-lasting and diverse immune cell responses. This strategy offers a promising model for developing effective next-generation vaccines.
A comprehensive analysis of human geophagy reveals that eating dirt is a widespread behavior that provides protection against intestinal parasites and pathogens. The study found that people are more likely to consume earth during vulnerable life stages or in environments with high levels of foodborne microbes.
A study of 161 marine mammal tissue samples reveals an association between severe illness and co-infection with two parasites, Sarcocystis neurona and Toxoplasma gondii. The infections caused more severe disease symptoms in animals infected with both parasites.
Researchers found that a pre-existing malaria infection restricts iron availability in the liver, preventing a second infection. This discovery has implications for managing and preventing malaria, which affects millions worldwide.
Researchers discovered that anti-HIV inhibitors can kill Leishmania parasites by targeting the Ddi 1 protein. This finding suggests a potential new class of drugs for treating parasitic diseases like leishmaniasis and malaria, which could one day become lifesaving treatments.
Feral pigs in eastern North Carolina have been found to host significant numbers of parasites that can be transmitted to humans, including Toxoplasma gondii and Trichinella. The study's findings highlight the potential health risk posed by feral pigs to both domestic swine and humans.
Researchers found that the parasite balances infection and spread through careful form transformation. The study provides fresh insight into the parasite's survival strategy, which could lead to new treatment approaches.
Researchers have identified several genes that may contribute to the malaria parasite's ability to evade antimalarial drugs. One of these genes, PF10_0355, was found to render drug-sensitive parasites more resistant to three standard antimalarial agents when introduced into them.
Scientists have discovered how nifurtimox kills parasites by converting it into a toxic form through an enzyme in the parasite. This breakthrough could lead to the development of new anti-parasitic medicines with fewer side effects and improved efficacy.
Researchers have found that monkeys infected with an emerging malaria strain are providing a reservoir for human disease in Southeast Asia. The study confirms that the species has not yet adapted to humans and that monkeys are the main source of infection.
Researchers studied malaria parasite reproduction, finding damaging male and female forms can prevent disease transmission without killing them entirely.
A new study by NIH-funded researchers has developed genetically modified fungi that can kill malaria-causing parasites in mosquitoes, significantly reducing parasite development. The transgenic fungi block the development of malaria parasites in mosquitoes, preventing transmission to humans.
Researchers have developed an approach to identify parasite genes associated with severe infection in pregnant women and children, offering new understanding of childhood malaria. Additionally, studies found that niacin can inhibit progression of atherosclerosis in mice through its receptor GPR109A expressed by immune cells.
Researchers have developed a method to profile malaria-causing parasite P. falciparum, identifying genes associated with severe infection in pregnant women and children. The study aims to provide new understanding of childhood malaria severity.