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Lottie Peppers

Information on Avian Influenza | Avian Influenza (Flu) - 0 views

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    Avian influenza refers to the disease caused by infection with avian (bird) influenza (flu) Type A viruses. These viruses occur naturally among wild aquatic birds worldwide and can infect domestic poultry and other bird and animal species. Avian flu viruses do not normally infect humans. However, sporadic human infections with avian flu viruses have occurred. The links below offer information about avian influenza for different audiences.
Lottie Peppers

New test could reveal every virus that's ever infected you | Science/AAAS | News - 0 views

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    Can't remember every viral infection you've ever had? Don't worry, your blood can. A new test surveys the antibodies present in a person's bloodstream to reveal a history of the viruses they've been infected with throughout their life. The method could be useful not only for diagnosing current and past illnesses, but for developing vaccines and studying links between viruses and chronic disease.
Lottie Peppers

Bringing Home More than a Medal - National Center for Case Study Teaching in Science - 0 views

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    This case study was inspired by the Zika virus outbreak that occurred around the time of the 2016 Olympic Games. Many athletes were fearful of attending because of the link between Zika virus infection and microcephaly in infants. This concern, however, ran contrary to reports suggesting that the risk of athletes and other travelers becoming infected was remarkably low. Jessica, a fictional Olympic equestrian and the main character of the case, was unfortunately very unlucky and contracted Zika virus near the time of the Games. She ended up enduring negative health complications likely as a consequence of the infection.  This case was designed to be implemented in the nervous system unit of a human biology or anatomy and physiology course. The case is also appropriate for microbiology and public health courses.   Students are expected to have foundational knowledge in viral life cycles, and will explore disruptions in neurotransmission as well as abnormal fetal brain development.
Lottie Peppers

Host genetic diversity enables Ebola hemorrhagic fever pathogenesis and resistance - 0 views

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    Existing mouse models of lethal Ebola virus infection do not reproduce hallmark symptoms of Ebola hemorrhagic fever, neither delayed blood coagulation and disseminated intravascular coagulation, nor death from shock, thus restricting pathogenesis studies to non-human primates. Here we show that mice from the Collaborative Cross exhibit distinct disease phenotypes following mouse-adapted Ebola virus infection. Phenotypes range from complete resistance to lethal disease to severe hemorrhagic fever characterized by prolonged coagulation times and 100% mortality. Inflammatory signaling was associated with vascular permeability and endothelial activation, and resistance to lethal infection arose by induction of lymphocyte differentiation and cellular adhesion, likely mediated by the susceptibility allele Tek. These data indicate that genetic background determines susceptibility to Ebola hemorrhagic fever.
Lottie Peppers

What does measles actually do? | Science/AAAS | News - 0 views

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    The United States is now experiencing what promises to be one of the worst outbreaks of measles since the virus was declared eliminated from the country in 2000.  It began in early January at Disneyland Resort in Anaheim, California, and has since spread to 14 states and infected 84 people, according to the U.S. Centers for Disease Control and Prevention (CDC). Measles, caused by a paramyxovirus from the genus Morbillivirus, is one of the most contagious diseases in the world, infecting more than 90% of susceptible hosts that come in contact with an afflicted individual. In the absence of widespread vaccination, the average person with measles will infect an average of 12 to 18 other people; in contrast, Ebola is typically transmitted to 1.5 to 2.5 people.
Lottie Peppers

Should You Get The HPV Vaccine? - YouTube - 0 views

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    HPV is considered one of the most common sexually transmitted infections, and it affects both men and women! Is it dangerous, and can it be prevented? Get your official DNews t-shirt here: http://www.forhumanpeoples.com/collec... Read More: Genital HPV Infection - Fact Sheet http://www.cdc.gov/std/hpv/stdfact-hp... "Human papillomavirus (HPV) is the most common sexually transmitted infection in the United States. Some health effects caused by HPV can be prevented with vaccines." Time To Rethink 'Girls-Only' Approach To HPV Vaccine? http://www.futurity.org/hpv-vaccines-... "Encouraging parents to have their sons get the human papillomavirus (HPV) vaccine-rather than just trying to get more girls vaccinated-could ultimately protect more people for the same price, according to a study by a mathematician."
Lottie Peppers

Could Alzheimer's Stem From Infections? It Makes Sense, Experts Say - The New York Times - 0 views

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    Could it be that Alzheimer's disease stems from the toxic remnants of the brain's attempt to fight off infection? Provocative new research by a team of investigators at Harvard leads to this startling hypothesis, which could explain the origins of plaque, the mysterious hard little balls that pockmark the brains of people with Alzheimer's.
Lottie Peppers

Malaria parasites lure mosquitoes to infected hosts | Science News for Students - 0 views

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    A microbe that causes malaria tricks mosquitos into helping it spread, a new study finds. The microbe is a parasite that leaves a chemical behind in the blood of the people or other animals that it infects. Mosquitoes are drawn to scent of blood hosting this chemical. It entices them to slurp up some of the infected meal. Then voila! The parasites get airlifted from their old host to new ones. And so malaria spreads.
Lottie Peppers

PDI GermWars - YouTube - 0 views

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    Watch the adventures of the inept "Staph Sargent" and his trusty sidekick as they try to infect the world with germs in this animated educational video. But as they plot their evil plan, they are thwarted at every turn by trained PDI Agents (Protect Don't Infect) who thwart their attempts by washing their hands, covering their cough and sneeze and staying home when sick. This wacky video is aimed at kids aged 6-11 but there's plenty of humor that goes right over their head and finds it's target with mom and dad! With worries about the spread of the H1N1 "Swine Flu," this program is perfectly timed for the beginning of school season. The video was produced by the creative team at Omni Productions in Orlando, FL and is part of a very successful campaign by the Orange County Department of Health.
Lottie Peppers

Common weed could help fight deadly superbug, study finds - The Washington Post - 0 views

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    Researchers from Emory University and the University of Iowa found that extracts from the Brazilian peppertree, which traditional healers in the Amazon have used for hundreds of years to treat skin and soft-tissue infections, have the power to stop methicillin-resistant Staphylococcus aureus (MRSA) infections in mice.
Lottie Peppers

Retroviral influence on human embryonic development - 0 views

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    The most recent human retroviral infections leading to germ line integration took place with a subgroup of human endogenous retroviruses called HERVK(HML-2). The human genome contains ~90 copies of these viral genomes, which might have infected human ancestors as recently as 200,000 years ago. HERVs do not produce infectious virus: not only is the viral genome silenced - no mRNAs are produced - but they are littered with lethal mutations that have accumulated over time. A recent study revealed that HERVK mRNAs are produced during normal human embryogenesis. Viral RNAs were detected beginning at the 8-cell stage, through epiblast cells in preimplantation embryos, until formation of embryonic stem cells (illustrated). At this point the production of HERVK mRNA ceases. Viral capsid protein was detected in blastocysts, and electron microscopy revealed the presence of virus-like particles similar to those found in reconstructed HERVK particles. These results indicate that retroviral proteins and particles are present during human development, up until implantation.
Lottie Peppers

Pit Bull Spreads Plague to Four People - NBC News - 0 views

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    An outbreak of plague that affected four people and a dog in Colorado might be the first instance of person-to-person transmission of plague in the United States in 90 years, officials said Thursday. It started with a sick pit bull, and its owner, two vet techs and a close personal contact of the dog's owner all ended up infected. The dog died but all four people were treated with antibiotics and are okay.
Lottie Peppers

Antibiotic-Resistant Superbugs: Infections We Can't Cure? - YouTube - 0 views

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    7:23 video Are we entering the post-antibiotic era? Antibiotic-resistant bacteria are on the rise, with millions of infections reported every year and thousands of deaths. How does antibiotic resistance work? How did we get here? And what can we do in the future to make sure that papercuts don't spell a death sentence?
Lottie Peppers

Genetically Modified Cows Could Lead To MERS Vaccine | Popular Science - 0 views

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    More than 1,600 people worldwide have been infected with Middle East Respiratory Syndrome, or MERS, and complications from it have resulted in nearly 600 deaths. But in the three years since scientists identified the disease, they haven't been able to discover a way to treat or prevent infection. Now a team of international researchers has used genetically modified cows to create antibodies that combat the disease, which could mean that a vaccine might soon be possible. The research was published today in Science Translational Medicine.
Lottie Peppers

Life in the Lab: microbiome - YouTube - 0 views

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    Hilary Brown is a PhD student, working in the infection genomics group at the Wellcome Trust Sanger Institute. In this film he describes how to work safely in the lab with bacteria from the human gut including culturing them on agar plates and extracting the DNA for genome sequencing. The infection genomics programme uses a variety of different research approaches to study the biology and evolution of disease-causing organisms such as viruses, bacteria and parasites and understand how they cause disease in humans and other animals.
Lottie Peppers

Neandertal DNA Affects Modern Ethnic Difference in Immune Response - Scientific American - 0 views

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    DNA acquired from breeding with Neanderthals may explain why people of European descent respond differently to infection than those of African descent, two studies suggest. The findings might also offer insight into why people of African descent are more prone to autoimmune diseases caused by an overactive immune system.
Lottie Peppers

http://classroom.kidshealth.org/classroom/9to12/body/systems/immune_system.pdf - 0 views

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    Germs are everywhere: in school, at home, at the gym, at the mall, even on your computer! You're constantly exposed to germs. Fortunately for most of us, our immune systems defend us against germs and microorganisms daily to keep us healthy and prevent infection. The following discussion questions and activities will help your students learn all about the immune system.
Lottie Peppers

The surprising reason you feel awful when you're sick - Marco A. Sotomayor - YouTube - 0 views

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    It starts with a tickle in your throat that becomes a cough. Your muscles begin to ache, you grow irritable, and you lose your appetite. It's official: you've got the flu. It's logical to assume that this miserable medley of symptoms is the result of the infection coursing through your body - but is that really the case? Marco A. Sotomayor explains what's actually making you feel sick.
Lottie Peppers

The physics of the sneeze - YouTube - 0 views

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    Sneezes play an important part in the spread of infections, but we don't know a huge amount about how they work. Lydia Bourouiba's lab at MIT is trying to change that, using slow motion footage and other measurements to study the fluid dynamics of sneezing.
Lottie Peppers

The Origins of O | The Scientist Magazine® - 0 views

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    HIV jumped from apes to humans at least four times, as evidenced by genetically distinct groups of the virus that have been detected: M, N, O, and P. While N and P have had little impact, M is responsible for the pandemic affecting millions of individuals, and O has infected another 100,000.
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