Articles tagged with Infectious Disease Transmission
A new study by La Jolla Institute for Immunology researchers suggests that many people may already have immune cells on standby to combat the H5N1 virus. The study found similarities between H5N1 and seasonal influenza viruses, allowing scientists to predict cross-reactive T cell responses that could help decrease disease severity.
Researchers at the University of Iowa Health Care have identified a cellular route used by Ebola virus to traverse skin layers and emerge onto the skin surface. The study suggests that the skin's surface may be one route of person-to-person transmission, with human skin specimens actively supporting EBOV infection.
A new system can quickly identify emerging virus variants and provide information on their genetic changes, helping to understand why they spread differently in human populations. This enables the development of more effective vaccines and targeted treatments for diseases such as flu, COVID, and tuberculosis.
A study by the University of Surrey found that high-quality face masks reduce transmission risk by ninefold and doubling indoor air ventilation cuts it by nearly a third. Improving ventilation and physical distancing further minimizes the risk.
A study on capybaras infected with a rabies variant linked to vampire bats has been published in the journal Veterinary Research Communications. The research found that the viral strain was transmitted by vampire bats, which likely fed on the capybaras' blood during habitat disturbance.
A study found that Canada's PNEP can prevent 15% of new hepatitis C cases and 8% of injection-related infections. Scaling up the program could lead to significant cost savings and improved public health outcomes.
Researchers at Children's Hospital of Philadelphia found that the rotavirus vaccine is safe for use in NICU babies, with a low risk of transmission and no clinical consequences. The study suggests that giving the vaccine to eligible infants during their hospitalization provides immune benefits that outweigh any risks.
A 500-year-old latrine from Bruges, Belgium has yielded evidence of intestinal parasites, shedding light on the spread of diseases through medieval travel and trade. The discovery provides key insights into human migration and disease transmission in the past.
A new simulator study demonstrates the role of the nasal cavity in dispersing respiratory aerosols, impacting disease transmission. Aerosol dynamics vary depending on exhalation method and environment.
A recent study found a significant increase in severe multidrug-resistant Shigella sonnei infections among people experiencing homelessness (PEH) in Vancouver. The strain, genotype 3.6.1.2, is resistant to nearly all antibiotics, leading to higher hospitalization rates and more severe outcomes.
Researchers simulated viral outbreaks to evaluate dispersal metrics from genomic sequences, finding that certain measures are less impacted by sampling size. The study reveals the relationship between viral spread and host animal dispersal capacity, as well as human interference factors.
A new study published in Clinical Infectious Diseases found that telehealth and peer-assisted care can significantly improve diagnosis and treatment of hepatitis C in rural communities. The study, led by Oregon Health & Science University, showed that 66% of hard-to-reach patients were cleared of the virus within six months.
Researchers found that Florida panthers are not at increased risk for contracting chronic wasting disease from eating infected deer. The study provides relief to conservation efforts, as the disease has spread through North America's deer and elk populations.
A breakthrough in vaccine development has led to the creation of an effective, inexpensive, and simple COVID-19 vaccine that can be stored at room temperature. The nano-vaccine trains the immune system against all common COVID-19 variants, eliminating the need for ultra-cold storage and skilled personnel.
Two studies found that multidrug-resistant Enterobacterales, particularly Escherichia coli ST131 and Providencia stuartii NDM-1, are spreading in healthcare and community settings across Europe. The emergence of these resistant bacteria poses a significant threat to carbapenem treatment effectiveness.
New information and guidance on monitoring and managing ranaviruses are provided in the second edition of Ranaviruses: Emerging Pathogens of Ectothermic Vertebrates. Ranavirus infections have been confirmed in over 177 species, causing mass die-offs and affecting biodiversity.
Researchers developed a nasal vaccine combining traditional pertussis antigens with an innovative adjuvant called T-vant to boost immune response. The new vaccine was shown to prevent the bacteria's colonization in the respiratory tract, significantly curbing whooping cough spread.
Climate change is responsible for 19% of the current dengue burden, with a potential to spark an additional 40%-60% spike by 2050. A study found that moderating global warming would also moderate climate impacts on dengue infections.
A new study analyzed how seasonal flu viruses moved and evolved during the COVID-19 pandemic, finding that they remained in certain regions despite reduced global mobility. The study suggests increased genomic surveillance capacity will help monitor seasonal influenza to reduce vaccine mismatches and inform effective interventions.
Researchers at UC Santa Barbara created deaf mosquitoes and found that males had no interest in mating, even when left with females for days. The absence of a single gene, trpVa, is responsible for this effect, which could have major implications for managing disease transmission by controlling mosquito populations.
Swallow populations infected with parasites exhibit altered movement patterns, including reduced home ranges and foraging activity. This can lead to decreased foraging success and increased mortality rates.
A new study by the University of Exeter and Wageningen found that Asaia bacteria accelerate the development of mosquito larvae, potentially boosting mass-rearing schemes. This could lead to more effective global health programmes against diseases like dengue, yellow fever, and Zika.
Researchers at Houston Methodist have identified a new strain of bacteria, Streptococcus dysgalactiae subspecies equisimilis (SDSE), linked to increasingly severe human infections. The study used integrative analysis to investigate the genome, transcriptome, and virulence of SDSE strains, shedding light on their molecular pathogenesis.
Researchers identified a protein in mammals that welcomes arteriviruses into host cells to start an infection. The team also found that an existing monoclonal antibody protects cells from viral infection, providing potential therapeutic strategy.
Researchers found a bovine H5N1 virus isolated from an infected worker to be transmissible and lethal in mice and ferrets, with limited efficiency. The virus is susceptible to certain antiviral drugs, including favipiravir and baloxavir marboxil.
A three-decade study found polar bears exposed to increased pathogens due to environmental changes, with females at higher risk. The study, published in PLOS ONE, highlights the need for further disease screening in polar bear populations.
A study by the University of Barcelona found that 35.4% of GBHSH community members use doxycycline as DoxyPEP, which may be associated with a decrease in chlamydia diagnoses but raises concerns about antibiotic resistance and misuse.
A new study reveals that mild and asymptomatic SARS-CoV-2 infections can trigger immune responses in pregnant individuals, causing serious inflammatory responses in the developing fetus. The study also found that even without full infection, a pregnant individual's immunological response to infection may impact the fetus.
A new app has tracked travel-related illnesses globally, showing that travelers experience health issues more often than expected. The Illness Tracking in Travellers (ITIT) app recorded gastrointestinal symptoms most frequently among Asian travelers and respiratory diseases in Europe.
A new study explores Mpox clinical presentation, diagnostic approaches, and treatment strategies for patients with severe immunocompromised conditions. The study emphasizes the importance of supportive care and advanced therapeutics as first-line treatments.
Researchers have developed a new approach to epidemic modeling that considers socioeconomic factors like income, education, and ethnicity. This framework allows for more realistic predictions of disease spread by accounting for how people interact and respond to public health measures.
Increased malaria cases from mosquitoes transported by air have been reported in France and a European systematic review, highlighting the risk of Odyssean malaria. Locally-acquired infections remain constant, with more cases being reported since 2011.
The COVID-19 pandemic has provided researchers with an opportunity to explore the role of social connections in the spread of both disease and ideas. By analyzing data on human interaction networks, mathematician Nicholas Landry aims to understand how ideas are transmitted and how they can be tracked.
A new study found that babesiosis rates rose 9% annually between 2015 and 2022, with 42% of cases linked to other tick-borne illnesses. Co-infection with Lyme disease did not increase mortality risk, but patients received doxycycline treatment more frequently.
A study published in Clinical Infectious Diseases reveals that Asian and Black individuals are less likely to be tested for hepatitis C, while American Indian/Alaska Native women are more likely to receive treatment. The findings highlight the need to prioritize equity in healthcare approaches to ensure timely diagnosis and effective t...
A study found that doxycycline post-exposure prophylaxis (doxy-PEP) did not significantly alter the overall composition of gut bacteria in individuals who took it for six months. However, the researchers noted signs of resistance building against tetracycline, a class of antibiotics to which doxycycline belongs.
Scientists at Houston Methodist will focus on developing efficacious vaccines and therapeutic antibodies for viruses in the Nairoviridae, Hantaviridae, and Paramyxoviridae families. The goal is to prepare for potential outbreaks and develop effective medical countermeasures in response to a next pandemic.
Researchers at the University of Nottingham uncover key regulators of malaria parasites' cell division, revealing NEK1 as a potential drug target. The study aims to find new therapeutic targets for controlling malaria transmission.
A modelling study suggests that slow waning of MMR vaccine-induced immunity may contribute to rising measles cases in double-vaccinated people. However, the MMR vaccine remains the most effective measure to prevent measles infection, and community vaccination levels above 95% are essential to prevent outbreaks.
A Kansas State University study finds that milking equipment and procedures are likely routes of transmission for the highly pathogenic H5N1 avian influenza virus in dairy cattle. The research, led by Juergen Richt, reveals severe mammary gland infections and drastic increases in virus levels in milk.
Researchers at Ohio State University discovered that a strain of rat hepatitis E can infect and spread among pigs, raising concerns about the potential transmission of the virus to humans. The study found that infected pigs shed the virus in their feces, highlighting the need for improved food safety procedures.
A recent study found a correlation between PrEP use and increased rates of gonorrhea, chlamydia, and syphilis among gay and bisexual men in Ontario. The study highlights the importance of regular STI testing and risk reduction measures to manage this risk effectively.
A Nagoya University study suggests adopting testing-based protocols to minimize both premature and prolonged isolation for mpox patients. The approach characterizes viral shedding dynamics to optimize isolation strategies, potentially reducing patient isolation times by more than a week on average.
Researchers have conducted the largest genomic survey of the syphilis bacterium to date, correlating genetic data with clinical information to identify potential targets for a vaccine. The study found differences in bacterial strains between continents, but also similarities that suggest a global vaccine could be effective.
A new study reveals that two specific genes in the RNA interference pathway play a crucial role in preventing virus transmission from parent to progeny in plants. This discovery could lead to healthier crops and potentially reduce the transmission of diseases like Zika from mothers to human children.
Researchers isolated drug-resistant strains of SARS-CoV-2 from immunocompromised individuals who received antiviral treatments. The virus variants showed resistance to Paxlovid and remdesivir, highlighting the need for combination therapy to treat COVID-19 in highly vulnerable patients.
The NIH has released an update on its priorities for mpox research, focusing on understanding the virus's transmission, vaccine development, and treatments. The agenda aims to improve detection and prevention strategies for the disease, which is most severe in people with compromised immune systems.
A new study from European universities has developed a method to analyze wastewater data from seven major cities, identifying thousands of disease-causing bacteria, viruses, and antimicrobial resistance. This approach can detect potential health threats simultaneously, potentially preventing epidemics from escalating into outbreaks.
Researchers found that seabirds' food-stealing behavior, known as kleptoparasitism, could be a transmission point for the deadly H5N1 avian flu virus. This behavior involves birds forcing others to regurgitate their prey, potentially spreading the disease through contaminated food items.
Researchers will conduct laboratory and field work at UC Medical Center to detect airborne transmission of MRSA. The study aims to better understand the significance of airborne transmission of MRSA and inform enhanced workplace safety measures.
Researchers at the Florida Museum of Natural History are studying bagworms' unique life cycle and their potential to inform understanding of modern climate change. They'll also analyze fossils from ancient mammal communities affected by rapid warming, as well as use AI to model future disease outbreaks.
The University of Kentucky has been awarded a six-year, $18 million NSF grant to establish the NSF ESCAPE center for assessing pathogen emergence. The center will focus on environmental surveillance using social science, engineering, bioinformatics, and risk modeling to predict and prevent pandemics.
A nationwide study by Nanyang Technological University found that individuals who recovered from dengue are at a 55% higher risk of long-term health complications, including heart problems and cognitive disorders. This is compared to those who recovered from COVID-19.
A case study reports a 9-year-old Canadian child diagnosed with Tick-borne Powassan virus encephalitis after symptoms developed 1 week after a camping trip in northern Ontario. The authors emphasize the importance of broad arbovirus serology testing for patients presenting with encephalitis, particularly during summer and fall.
A study found that men infected with high-risk types of HPV could experience sperm death from oxidative stress, leading to impaired fertility. The researchers also discovered a weakened local immune response in the urogenital tract, which may contribute to these effects.
New evidence suggests masks can reduce transmission, but behaviors like avoiding crowds also play a role. Experts emphasize the need for multi-measure approaches to public health.
Researchers at UC Santa Barbara discovered that mosquitoes, particularly Aedes aegypti, can detect thermal infrared radiation from human skin heat, doubling host-seeking behavior when combined with CO2 and human odor. This newly documented sense helps explain how mosquitoes achieve their exceptional tracking skills.
The center aims to harness new technologies to detect, investigate, and prevent pandemics at their source. It combines expertise from four UC Davis powerhouses: veterinary medicine, engineering, agriculture, and medicine.
A new study suggests treating all children under 5 with azithromycin in Africa can significantly reduce child mortality. Treating older kids protects younger children from respiratory and lethal infections.
A recent study has confirmed the efficacy and safety of the dengue vaccine TAK-003, which reduces the risk of contracting the disease by over 50%. The vaccine has shown a high safety profile, with more than 90% of adults and children developing antibodies after administration.