Articles tagged with Epidemics
A study revealed that ancient viruses, which infected ancestors as far back as the age of dinosaurs, became widespread in mammals' genomes due to a loss of cell infectivity. This led to a dramatic increase in viral genetic material, resembling the spread of 'superspreaders' during epidemic outbreaks.
Researchers found that the sasX gene is more prevalent in MRSA strains from China than previously thought, with its frequency increasing significantly over the past decade. The gene plays a pivotal role in establishing MRSA epidemics and may be involved in molecular processes that help bacteria spread and cause disease.
A new study reveals that the number of vertebrate predators and food availability influence epidemic size and host evolution. Daphnia populations evolve increased susceptibility to yeast infection in lakes with fewer resources and high predation.
A freshwater zooplankton species, Daphnia dentifera, evolves quickly to balance infection resistance and reproduction during epidemics. The number of vertebrate predators and food availability influence the size of epidemics and host evolution.
Researchers at the University of Guelph have cloned American elm trees that survived Dutch elm disease epidemics, offering a potential model for preserving endangered plant species. The breakthrough could help reintroduce disease-resistant trees and conserve thousands of other endangered species.
Research from UCSF and Harvard Medical School finds that trauma significantly contributes to the HIV epidemic among women. Women with HIV are exposed to trauma at higher rates than the general population, leading to post-traumatic stress disorder (PTSD) and poor treatment outcomes.
Researchers discovered that cardiac natriuretic peptides can convert white fat cells into brown fat cells in mice and humans, increasing energy usage and potentially aiding in weight loss. The study suggests a new approach to combating the obesity epidemic.
A University of Michigan report found that young adults in Generation X were moderately concerned about the flu and followed the issue closely. Despite a low vaccination rate, they responded accordingly by being well-informed and taking actions to protect themselves and their families.
A new approach to HIV prevention is being developed by Michigan State University's Institute of International Health, focusing on cultural competency to address the epidemic in Haiti and the Dominican Republic. The plan involves training and mentoring local health care professionals to strengthen HIV prevention, particularly among youth.
A new model for epidemic contagion has been developed, accounting for human mobility patterns and reducing the spread of infectious diseases. The study found that older diffusion-based models overestimated the speed of epidemics, highlighting the importance of considering home locations in modeling human mobility.
A new study published in the American Journal of Tropical Medicine and Hygiene found that internet-based news and Twitter feeds were faster at detecting the onset and progression of the cholera epidemic in post-earthquake Haiti. Researchers used HealthMap, an internet tool, to capture coverage and mentions of cholera from various sources.
A new form of occupational hazard is emerging among shift workers, as unhealthy eating patterns exacerbate the risk of obesity and type 2 diabetes. The authors suggest that workplaces must lead the way in eliminating this hazard by promoting healthier habits and making it easier to eat well.
A Princeton University study found that nighttime-lights imagery can pinpoint disease hotspots in urban areas with migratory populations. The technique accurately indicates fluctuations in population density, which is linked to the risk of epidemic.
A new Cornell University review article finds that powerful environmental cues are subconsciously bending willpower every day. Portion size emerged as one of the most powerful links to overeating, with package size playing a significant role.
Flu strains migrate globally, evolving along the way, contradicting the theory that they come from tropical areas. Influenza viruses in tropical regions show relatively low levels of genetic diversity and no seasonal fluctuations.
Researchers found a link between large-scale wind patterns and Kawasaki disease outbreaks in Japan, Hawaii, and San Diego. Wind currents carrying potential infectious agents may be triggering the disease, with seasonal shifts in winds exposing regions to air masses from Central Asia.
The UK Flusurvey, launched by the London School of Hygiene & Tropical Medicine, will track seasonal flu spread across Britain and compare data with European countries. The online survey aims to detect flu epidemics early and provide insights into vaccine effectiveness.
A mathematical model predicts that expanding HIV treatment to discordant couples in Ghana, Lesotho, Malawi, and Rwanda can prevent 96% of transmission. The intervention's effectiveness varies by country, with potential for significant impact in certain nations.
The University of Missouri Extension has received a national grant to promote healthy diets and physical activity through two projects: Missouri Farm to Institution Project and Livable Streets. The programs aim to provide tools and support for schools, hospitals, and institutions to serve locally grown produce and educate citizens to a...
A team of researchers, led by Michael Levy, have traced the spread of Chagas disease in Peru using advanced mathematical methods and door-to-door surveys. They found that the parasite was introduced into the region around 20 years ago, with most infections occurring over the last decade.
The Lancet Obesity Series identifies effective policies to reduce obesity, including taxes on unhealthy food and restrictions on TV advertising. Governments are urged to prioritize prevention programs and monitoring to tackle this complex and intractable problem.
A comprehensive review and data synthesis highlights the emergence of HIV epidemics among men who have sex with men in the region, with high rates of risky sexual behavior and concentrated epidemics in countries like Egypt and Sudan. The authors stress the need for expanded HIV surveillance and access to prevention and treatment services.
Researchers found that a model with dynamic information about social interactions was as effective as a more complex model, challenging the assumption that increased complexity leads to better predictions. The study used data from over 30,000 social contacts recorded at a conference, revealing that simpler models can still produce accu...
A new study published in The Lancet found that the number of sexual partners, rather than concurrent partnerships, is strongly predictive of HIV transmission in women. Researchers analyzed data from over 87,000 individuals in South Africa and found that men with multiple lifetime partners were more likely to transmit HIV.
A new statistical method predicts the size of seasonal influenza epidemics by analyzing weekly CDC data. The analysis suggests that early circulation of one strain is associated with a reduced incidence of other strains.
The introduction of a new vaccine, MenAfriVac, has led to a dramatic fall in cases of meningitis A in Burkina Faso, Mali, and Niger. The vaccine, which costs less than $0.50 per dose, is highly effective and protects children as young as one.
The study's findings suggest that mass vaccinations deployed strategically could prevent future cholera epidemics in Zimbabwe and other nations. The research team analyzed how cultural, political, and economic factors influenced routes of transmission and identified funeral feasts as a key factor contributing to the spread of the disease.
The US is experiencing an 'epidemic of mass incarceration' due to inadequate treatment of addiction and mental illness in the community. Millions of Americans are cycling in and out of correctional facilities each year, with devastating consequences for their health and well-being.
A 440-year-old document reveals that the Andean population in Peru bounced back briefly after initial Spanish invasion but declined due to repeated disasters, rigid administration and epidemic disease. The census data challenges long-held assumptions about indigenous population decline in the Americas.
Overweight children and young adults are on the rise in Canada, with more than 60% of adults being overweight or obese. Legislative approaches, such as taxing junk food and improving nutritional labeling, are proposed to combat obesity.
A study by Stanford scientists found a specific TB strain was unintentionally spread among indigenous peoples of western Canada, leading to epidemics decades later. Poor living conditions and malnutrition on reservations contributed to the outbreak.
Researchers found that vaccinating 50-70% of people in high-risk areas after the outbreak would reduce morbidity and mortality by roughly 50%. A mobile stockpile of oral cholera vaccine could be deployed to mitigate future epidemics, especially in developing countries with poor sanitation infrastructure.
The NIH Strategic Plan for Obesity Research aims to curb the growing obesity epidemic by investigating key processes, understanding contributing factors, and designing new approaches for achieving a healthy weight. The plan also emphasizes education and outreach to move proven strategies into community programs and medical practice.
A new UCSF study forecasts a far worse-than-expected cholera epidemic in Haiti, predicting nearly twice the number of cases as the United Nations' initial projections. The study suggests that extending access to antibiotics could save thousands of lives and prevent widespread fatalities.
A mathematical model based on current knowledge of the disease predicts that without intervention, 779,000 new cases and 11,000 deaths would result from the epidemic. The model also simulates the effects of increased access to clean water, vaccination, and antibiotic treatment, which could prevent up to 170,000 cases and 3,400 deaths.
A new study predicts the spread of cholera in Haiti and identifies effective control strategies. The researchers' model suggests a three percent risk reduction in infection through vaccination, which is twice the impact of providing clean water.
A University of Liverpool-led consortium will analyse Streptococcus pneumoniae serotype 1, a major cause of invasive pneumococcal disease in Africa. The project aims to develop a protein-based vaccine enhancing or replacing current Pneumococcal Conjugate Vaccines.
A UK doctor shares a poignant story of an elderly patient struggling with loneliness, highlighting the need for companionship and support. The Lancet argues that tackling loneliness requires a multi-faceted approach, including social clubs, workshops, and simply spending time with neighbors.
Researchers found that anti-retroviral therapy improves household investments, education, and nutrition, while a prevention strategy focusing on girls reduces HIV prevalence and genital herpes. The 'Lazarus effect' suggests long-term treatment yields significant economic dividends and positive behavioral changes.
A group of experts recommends creating an emergency stockpile of cholera vaccines to rapidly deploy in high-risk areas, stabilizing countries and preventing outbreaks. The US would face low costs, while the benefits could be enormous, particularly in refugee camps.
A study found that a common transmissible strain of Pseudomonas aeruginosa is prevalent among cystic fibrosis patients in Canada, particularly in those infected with strain A, which is associated with a higher risk of death or lung transplantation. The study suggests cross-infection between CF centers in the UK and Canada.
The 2010 DGAC Report highlights key features, including a strong evidence base on vulnerable subgroups like infants, children, and pregnant women. The report also emphasizes the importance of primary prevention of obesity in childhood to halt and reverse America's obesity epidemic.
The Lancet Review emphasizes the need for tailored approaches in HIV/AIDS financing, as countries face diverging challenges. High-burden low-income (HBLI) countries will likely require extended international support, while middle-income nations with lower burdens can sustain funding using domestic resources.
A computer model shows that the US is susceptible to MDR-TB epidemics when TB prevalence falls and case detection improves, even with high treatment compliance. This is attributed to the increased risk of drug-resistant TB spreading in populations with low drug-susceptible TB rates.
A new study found that framing tasks involving self-control as 'fun' rather than an obligation increases regulatory success. Participants who perceived the task as enjoyable exerted more self-control and consumed less candy compared to those who saw it as a chore.
Researchers used the friendship paradox to study the 2009 flu epidemic among 744 students, finding that friends of central members were more likely to get sick earlier. This method can predict epidemics before they spread widely, allowing for an earlier and more effective response.
A Harvard University study found that small changes in perceived vaccine costs can lead to significant gaps in herd immunity, with social networks playing a crucial role in the spread of disease. The researchers discovered that increasing vaccination cost prompts more free-riding and leads to larger epidemics.
Experts conclude that inadequate provision of opioid substitution therapy, needle exchange programs, and antiretroviral treatment, along with laws prohibiting OST, are all contributing to the spread of HIV among people who use drugs. Scaling up combination HIV prevention interventions is shown to be effective in curbing the epidemic.
The growing HIV epidemic in people who use drugs is a significant public health concern, with 16 million injecting drug users worldwide and 3 million living with HIV. A comprehensive approach combining access to antiretroviral treatment, opioid substitution therapy, and needle programs can help contain the outbreak.
A study published in the Proceedings of the National Academy of Sciences reveals that a fungal disease has decimated amphibian abundance and species diversity in Central America's highlands. The researchers used DNA barcoding to estimate the impact of the epidemic, discovering five new species were also lost.
A recent study using DNA barcoding has discovered five previously unknown frog species among 30 that were wiped out by a fungal epidemic in Panama. The research also highlights the urgent need to address the biodiversity crisis, with many species disappearing before they can be documented.
A study finds that universal HIV testing and immediate treatment could reduce new HIV infections by 15 percent, but would not halt the epidemic. The test-and-treat strategy could extend life expectancy of HIV-infected patients by one to two years.
The Lancet Editorial emphasizes the need for low-cost and easy-to-implement interventions to address the global type 2 diabetes epidemic. The campaign led by Michelle Obama's Let's Move initiative promotes a three-component approach: nutrition, activity, and children.
Implementing the 3Is policy (Intensified tuberculosis case finding, Infection control, and Isoniazid preventive therapy) combined with earlier start of ART can prevent HIV-associated TB. Early diagnosis and treatment, along with a comprehensive package of HIV care, form the basis of prevention and control of HIV-associated TB.
Research by Indiana University scientists reveals that lake shape is a powerful factor controlling fungal disease epidemics. U-shaped lakes are more prone to epidemics due to the presence of Chaoborus, an invertebrate predator that spreads spores and catalyzes epidemics.
Research by Weijia Xing and colleagues reveals that most SARS epidemiological articles were submitted after the epidemic had ended, with only a small percentage published during the outbreak. The study suggests that journals alone are not sufficient to address delays in publishing epidemiological research on emerging infectious diseases.
A study published in PLOS Medicine found that rural-urban migration in India is associated with rapid increases in obesity and diabetes. The research suggests that changes in migrant behavior, such as reduced physical activity, contribute to the risk of obesity and diabetes.
A comprehensive survey of 317 laparoscopic surgeons found that 87% experience physical symptoms or discomfort due to minimally invasive techniques. The study highlights the need for ergonomic solutions to address the risks associated with these procedures, which have already benefited millions of patients worldwide.
A recent study found a diabetes epidemic among First Nations adults, with women in their prime reproductive years disproportionately affected. The incidence of diabetes is more than 4 times higher in First Nations women compared to non-First Nations women.
A recent study published in BMC Public Health suggests that immediate and aggressive spending of $60 billion on HIV/AIDS treatment could end the epidemic globally. The research, which analyzed a leading-edge mathematical model, predicts that an accelerated approach over five years is necessary to control the spread of the disease.